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Acrotaphus
Acrotaphus is a genus of spider-attacking parasitoid wasps in the family Ichneumonidae, subfamily Pimplinae, tribe Ephialtini. The genus contains 27 described species distributed across the New World, with particularly high diversity in the Neotropics including the Brazilian Amazon. These wasps are ectoparasitoids of orb-weaver spiders in the families Araneidae and Tetragnathidae. A defining characteristic of the genus is the ability to induce behavioral modification in host spiders, causing them to construct specialized "cocoon webs" that support and protect the wasp pupae.
parasitoid spider-parasitoid host-manipulation cocoon-web ectoparasitoid polysphinctine Ichneumonidae Pimplinae New-World Neotropical behavioral-manipulation orb-weaver-spider
Acrotaphus fuscipennis
Acrotaphus fuscipennis is a species of ichneumon wasp in the family Ichneumonidae, first described by Cresson in 1865. The genus Acrotaphus comprises parasitoid wasps that attack spiders. A. fuscipennis is one of approximately 8 species in the genus recorded from North America. Like other members of Acrotaphus, this species is presumed to be an ectoparasitoid of orb-weaving spiders (Araneidae), though specific host records for A. fuscipennis itself appear to be lacking in published literature.
Ichneumonidae parasitoid spider-parasitoid Hymenoptera North-America ectoparasitoid Araneidae
Adelognathinae
Adelognathinae is a subfamily of ichneumonid wasps comprising ectoparasitoid species that attack sawfly larvae. Members exhibit koinobiont or idiobiont strategies, with some species displaying unusual reproductive biology including egg deposition directly from the genital opening rather than through the ovipositor. The subfamily is best documented from Britain, where detailed studies have revealed rapid larval development and complex host-feeding behaviors.
ectoparasitoid koinobiont sawfly-parasite univoltine non-ovipositor-egg-deposition
Agrothereutes
Agrothereutes is a genus of parasitoid wasps in the family Ichneumonidae, containing over 40 described species. Members are solitary ectoparasitoids that attack concealed lepidopteran hosts, primarily targeting prepupal and pupal stages. Several species have been studied for their host relationships and reproductive biology, including A. lanceolatus and A. minousubae. The genus exhibits facultative diapause and variable voltinism, with some populations producing one or two generations annually.
parasitoid ectoparasitoid Ichneumonidae Lepidoptera-parasitoid diapause voltinism biological-control
Anisopteromalus
Genus of small parasitoid wasps in the family Pteromalidae, comprising species that attack larvae of stored-product beetles. Species within this genus are ectoparasitoids, with females laying eggs on host larvae concealed inside grains or other substrates. The genus includes at least two morphologically similar sibling species, A. calandrae and A. quinarius, that require molecular or cytogenetic methods for reliable identification. Members of this genus have been investigated as biological control agents against pests of stored grain.
parasitoid stored-grain-pest biological-control Pteromalidae ectoparasitoid integrated-pest-management
Aphytis
Aphytis is a genus of minute chalcid wasps in the family Aphelinidae, comprising approximately 130 described species. These wasps are specialized ectoparasitoids of armored scale insects (Diaspididae), particularly attacking citrus and other economically important pests. Adults typically measure 2–3 mm in length and exhibit coloration ranging from black to yellow with transparent wings. The genus has been extensively studied for biological control applications, with species such as A. melinus mass-reared and released worldwide to manage scale infestations. The University of California, Riverside maintains a critical collection of Aphytis specimens, including type material for numerous species described by Rosen and DeBach.
biological-control citrus-pest-management scale-insect-parasitoid ectoparasitoid integrated-pest-management Aphelinidae Hymenoptera Chalcidoidea
Aptesis
Aptesis is a genus of parasitoid wasps in the family Ichneumonidae, first described by Arnold Förster in 1850. The genus contains approximately 74 described species with an almost cosmopolitan distribution. Species within this genus are primarily ectoparasitoids of sawfly prepupae and cocoons, with some species serving as important biological control agents. Well-studied species include Aptesis nigrocincta, a bivoltine ectoparasitoid of apple sawfly cocoons, and Aptesis basizona, a parasitoid of pine sawflies used in classical biological control programs.
parasitoid ectoparasitoid sawfly-parasite biological-control Ichneumonidae solitary-parasitoid superparasitism bivoltine wingless-female soil-dwelling-host-location
Aptesis nigrocincta
Aptesis nigrocincta is a bivoltine solitary ectoparasitoid wasp that attacks cocoons of the apple sawfly (Hoplocampa testudinea). Females are nearly wingless and significantly smaller than males, an adaptation for searching soil at 10–25 cm depth. The species is considered the most important mortality factor for apple sawfly cocoons in the studied orchard, achieving parasitism rates of 12.1–39.7% per generation.
parasitoid ectoparasitoid apple-sawfly orchard biological-control wingless-female sexual-dimorphism bivoltine soil-dwelling
Balcha
Balcha is a genus of parasitoid wasps in the family Eupelmidae (Hymenoptera: Chalcidoidea). The genus comprises 16 described species worldwide, including eight newly described species and two newly combined species. Members are ectoparasitoids of wood-boring beetles, with Balcha indica notable as an accidental introduction to North America where it attacks the invasive emerald ash borer (Agrilus planipennis).
parasitoid biological-control emerald-ash-borer invasive-species thelytokous-parthenogenesis ectoparasitoid wood-boring-beetles ash-trees
Bethylidae
Flat wasps
Bethylidae is a family of aculeate wasps in the superfamily Chrysidoidea, commonly known as flat wasps due to their dorsoventrally compressed body form. The family exhibits a biology intermediate between parasitoid and predatory wasps: females sting and paralyze prey (primarily beetle and lepidopteran larvae), then oviposit on the immobilized hosts. Most species are small (2–10 mm), with females often wingless or apterous while males are always winged. The family contains eight recognized subfamilies and approximately 96 genera, with highest diversity in tropical and subtropical regions.
aculeate parasitoid ectoparasitoid biological-control flat-wasps wingless-females maternal-care wood-borer-parasitoid stored-product-pest-natural-enemy
Bethylinae
Bethylinae is a subfamily of small, stout-bodied parasitoid wasps within the family Bethylidae. Members are characterized by reduced wing venation and a compact, often humpbacked appearance. The subfamily contains numerous species that parasitize the larvae of beetles and moths, with females typically searching for concealed hosts in plant material or soil. Bethylinae is distinguished from other bethylid subfamilies by specific morphological features of the antennae and mesosoma.
parasitoid biological-control concealed-host Hymenoptera Bethylidae ectoparasitoid small-wasp reduced-wing-venation
Billaea
Billaea is a genus of tachinid flies comprising approximately 80 described species. Most larvae are parasitoids of beetle larvae, particularly cerambycids and lucanids, with some species attacking lepidopteran hosts in the family Pyralidae. Several species have been investigated as biological control agents for agricultural and forestry pests, including palm weevils and sugarcane borers.
Tachinidae parasitoid biological-control Cerambycidae Dryophthoridae Crambidae viviparous planidia forest-pest agricultural-pest oil-palm sugarcane palm-weevil wood-borer southeast-Asia South-America Europe Bulgaria Brazil Turkey Mexico Peru integrated-pest-management natural-enemy host-searching kairomones superparasitism mass-rearing Galleria-mellonella laboratory-host frass gallery tunnel pupal-parasitoid larval-parasitoid ectoparasitoid endoparasitoid Coleoptera Lepidoptera Diptera Brachycera Dexiinae Dexiini Robineau-Desvoidy-1830 80-species global-distribution forestry agriculture ornamental-palms date-palm coconut Rhynchophorus Diatraea Prionus Xylotrechus climate-matching establishment-potential Mediterranean Middle-East California invasive-species red-palm-weevil American-palm-weevil red-ring-disease vector-control natural-mortality pest-management sustainable-agriculture host-specificity trophic-association new-host-record parasitism-rate field-parasitism laboratory-rearing adult-longevity fecundity sex-ratio pupal-viability pupal-duration planidia-length food-resources pollen honey sucrose flowering-plants spontaneous-flora companion-plants habitat-management conservation-biological-control augmentative-biological-control classical-biological-control quarantine host-range circumstantial-evidence taxonomic-confusion B.-rhynchophorae B.-menezesi B.-adelpha B.-claripalpis B.-rutilans B.-cerambycivora B.-steini B.-fortis B.-irrorata B.-pectinata B.-setosa B.-triangulifera B.-lata B.-intermedia B.-biserialis B.-gigantea B.-rubens B.-maritima B.-marmorata B.-aurifrons B.-verticalis B.-flava B.-chinensis B.-brevicauda B.-kurahashii B.-micronychia B.-papei B.-setigera B.-yintiaoling B.-rufescens B.-triquetrus B.-rubida B.-rufiventris B.-brasiliensis B.-friburgensis B.-giacomeli B.-kosterae B.-plaumanni B.-shannoni B.-africana B.-argentaurea B.-atkinsoni B.-capensis B.-communis B.-decisa B.-edwardsi B.-erecta B.-ficorum B.-grandis B.-impigra B.-interrupta B.-kolomyetzi B.-luteola B.-malayana B.-minor B.-monohammi B.-montana B.-morosa B.-nipigonensis B.-orbitalis B.-ovata B.-quadrinota B.-rhingiaeformis B.-robusta B.-satisfacta B.-sibleyi B.-sjostedti B.-solivaga B.-trivittata B.-trochanterata B.-vanemdeni B.-velutina B.-versicolor B.-villeneuvei B.-vitripennis B.-zimini B.-lateralis B.-lativentris
Bothrideridae
cocoon-forming beetles, dry bark beetles
Bothrideridae is a family of small to medium-sized beetles in the superfamily Coccinelloidea, commonly known as cocoon-forming beetles or dry bark beetles. Members are characterized by elongated, cylindrical to somewhat flattened bodies and are primarily found under tree bark in woodland habitats. The family has undergone significant taxonomic revision, with former subfamilies Teredinae, Xylariophilinae, and Anommatinae now placed in the separate family Teredidae. Bothrideridae has a worldwide distribution with greatest diversity in the Old World tropics. The family is notable for its ectoparasitoid larvae, which attack other wood-boring insects including cerambycid beetles, wood wasps, and carpenter bees. Several species, particularly in the genus Dastarcus, are important biocontrol agents used commercially to manage forest pests such as the Japanese pine sawyer (Monochamus alternatus), a vector of pine wilt disease.
ectoparasitoid biocontrol forest-pest-management wood-boring-insects Cerambycidae-parasitoid pine-wilt-disease-vector-control nocturnal subcortical-habitat long-lived-adults density-dependent-development
Bothriderini
Bothriderini is a tribe of beetles within the family Bothrideridae. Members of this tribe are small, often flattened beetles with compact bodies. The tribe is part of the broader Bothrideridae family, which consists primarily of ectoparasitoids of wood-boring beetles. Bothriderini species are associated with decaying wood habitats where their hosts occur.
ectoparasitoid saproxylic wood-associated biological-control cryptic
Brachinus
bombardier beetles
Brachinus is a genus of ground beetles commonly known as bombardier beetles, native to the Nearctic, Palearctic, Near East, and North Africa. The genus is renowned for its explosive defensive chemistry, wherein beetles discharge a hot, noxious spray from the abdomen when disturbed. Species within Brachinus exhibit diverse ecological strategies: wetland-associated species are pupal ectoparasitoids of water beetles (Dytiscidae, Gyrinidae, Hydrophilidae), while dryland species such as B. explodens and B. crepitans parasitize ground beetle pupae of the genus Amara (Carabidae). The genus has been extensively studied for its chemical ecology, parasitoid life history, and habitat associations across agricultural and natural landscapes.
bombardier-beetle chemical-defense ectoparasitoid ground-beetle Carabidae chemical-ecology host-parasitoid-relationship agricultural-entomology wetland-ecology explosive-defense
Brachinus fumans
American bombardier beetle
Brachinus fumans, commonly known as the American bombardier beetle, is a ground beetle in the family Carabidae and subfamily Brachininae. This species belongs to the subgenus Neobrachinus and was originally placed in Erwin's fumans species group based on morphological characters, though molecular phylogenetic studies have redefined this group. The species is endemic to the Nearctic region and is found across North America. Like other bombardier beetles, it possesses remarkable explosive defensive chemistry.
bombardier-beetle chemical-defense ectoparasitoid ground-beetle Nearctic riparian
Brachycistidinae
Brachycistidinae is a subfamily of flower wasps (Tiphiidae) containing 10 genera and 85 species endemic to the Nearctic region. These wasps exhibit extreme sexual dimorphism: females are wingless and ant-like, living primarily underground, while males are winged and nocturnal. The subfamily has historically suffered from "dual taxonomy," where sexes were described as separate species due to their dissimilar appearance. Taxonomic resolution remains challenging due to structural similarities among species and lack of distinctive coloration.
sexual-dimorphism ectoparasitoid nocturnal Nearctic-endemic dual-taxonomy fossorial
Bracon mellitor
Bracon mellitor is a braconid parasitoid wasp specialized on weevils in the genus Anthonomus, particularly the boll weevil (Anthonomus grandis), a major cotton pest. It is native to North America, occurring from South Dakota and Texas eastward. The species has been extensively studied for its potential in biological control programs, with research spanning its developmental biology, host relationships, oviposition behavior, and responses to insecticides. Females are ectoparasitoids that attack host larvae and pupae, and the species exhibits associative learning in response to chemical cues.
parasitoid biological-control cotton-pest ectoparasitoid associative-learning thermal-biology Anthonomus integrated-pest-management artificial-diet-rearing
Braconinae
Braconinae is a large subfamily of braconid parasitoid wasps comprising more than 2,000 described species. Members are small to medium-sized wasps, typically dark in coloration though some exhibit red, orange, or pale coloration. They possess cyclostome mouthparts and females usually have a long ovipositor. The subfamily is found worldwide with highest diversity in the Paleotropical region.
parasitoid idiobiont ectoparasitoid biocontrol cyclostome ovipositor Paleotropical-diversity Lepidoptera-parasitoid Coleoptera-parasitoid concealed-host-larvae venom-paralysis Bracon-brevicornis Atanycolus Baryproctus Bracon Ceratobracon Coeloides Glyptomorpha Iphiaulax Pseudovipio Vipio Megalommum Phylogeny-of-the-Braconinae tribal-classification Aphrastobraconini Braconini Coeloidini Compsobraconini Tropobraconini Virgulibraconini Adeshini Argamaniini Bathyaulacini Euurobraconini Glyptomorphini Gnathobraconini Physaraiini Rhammurini Vaepellini Myosotiseini Aspidobraconini Ceratobraconini Vipionini Iphiaulacini Acanthobraconini Turkey Iran China Thailand Pakistan Anatolia pistachio-longhorn-beetle Calchaenesthes-pistacivora Scolytidae Curculionidae Buprestidae coniferous-trees broadleaved-trees Malaise-trap light-trapping host-carrying-behavior Pycnobraconoides Trigastrotheca Physaraia Nesaulax Curreia Endovipio Amyosoma Megacoeloides Alienoclypeus Atanycolus-insolitus Bracon-amaculatus Bracon-quadrimaculatus Bracon-rhinchiti Bracon-murgabensis Bracon-querceus Bracon-karakumicus Bracon-hylobii Bracon-irkutensis Bracon-longiantennatus Bracon-longigenis Coeloides-sordidator Glyptomorpha-dispar Bracon-selviae Bracon-bachtiae Bracon-dersimensis Glyptomorpha-nachitshevanica Chelonus-erythrogaster Coeloides-glaboventris Coeloides-longquanus Coeloides-flavus Coeloides-changbaiensis Megalommum-pistacivorae Megalommum-xanthoceps Megalommum-jacobsoni Megalommum-ayyari Megalommum-philippinense Megalommum-dodecanesi Megalommum-ceresense Megalommum-inareatum Megalommum-antefurcale Megalommum-tibiale Physaraia-nanensis Physaraia-panhai Physaraia-sakaeratensis Physaraia-sinensis Physaraia-sumatrana Physaraia-tigeri Trigastrotheca-doiphukhaensis Trigastrotheca-pariyanonthae Trigastrotheca-sureeratae Trigastrotheca-tridentata Doi-Phu-Kha-National-Park Ardahan Erzurum Iğdır Kars Kastamonu Tunceli Fars-province Nan-province Sakaerat Zhejiang-University Chinese-Academy-of-Forestry DNA-barcoding BOLD-Systems BugGuide.net Wikispecies Wikimedia-Commons Encyclopedia-of-Life Systematic-Entomology Zootaxa ZooKeys Check-List Journal-of-Hymenoptera-Research Journal-of-Animal-and-Plant-Sciences PMC11214016 PMC12873568 28S-rRNA COI 16S-rRNA 18S-rRNA EF-1α CAD elongation-factor-1-alpha cytochrome-c-oxidase-subunit-I mitochondrial nuclear molecular-phylogeny morphological-phylogeny monophyletic tribus-nov comb.-nov sp.-nov syn.-nov incertae-sedis New-World Old-World Australian West-Palaearctic Oriental Indo-Australian Asian-Turkey European-Turkey biogeographical-provinces zoogeographical-regions checklist faunistics taxonomy systematics revision new-species new-records new-combinations new-synonyms new-tribe preliminary-key dichotomous-key diagnostic-characters type-specimen voucher-specimen holotype paratype female-specimen adult-specimen light-trap aerial-net field-collection 2011-2014 1980-2009 observation iNaturalist 14342-observations
Cephalonomia waterstoni
parasitic grain wasp, rusty grain beetlewasp
Cephalonomia waterstoni is a small parasitoid wasp in the family Bethylidae that attacks larvae and pupae of stored-product beetles, particularly the rusty grain beetle (Cryptolestes ferrugineus, formerly Laemophloeus ferrugineus). It is an ectoparasitoid that paralyzes host larvae before laying eggs on them. The species has been extensively studied for its potential as a biological control agent in grain storage facilities. Development is rapid, with the life cycle completing in approximately two weeks at 30°C and three weeks at 25°C.
parasitoid stored-product-pest-management biological-control grain-storage ectoparasitoid sexual-dimorphism kairomone arrhenotoky
Chyphotidae
Chyphotid Wasps
Chyphotidae is a small family of wasps in the order Hymenoptera, recently separated from Bradynobaenidae based on molecular and morphological studies. The family contains two subfamilies: Chyphotinae (nocturnal) and Typhoctinae (diurnal). Females are wingless and resemble velvet ants (Mutillidae), but can be distinguished by a visible suture between the pronotum and mesonotum. Biological knowledge remains extremely limited, with only a single confirmed host association documented.
ectoparasitoid solifuge-parasite arid-habitat wingless-female nocturnal diurnal new-world desert-wasp
Cirrospilini
Cirrospilini is a tribe within the subfamily Eulophinae (Hymenoptera: Eulophidae) comprising approximately 17 genera and nearly 300 species. Members are ectoparasitoids that attack immature stages of Diptera, Lepidoptera, and Coleoptera in semi-concealed habitats. Some species function as obligate or facultative hyperparasitoids, and a few are gall-formers. Phylogenetically, the tribe is considered monophyletic and the sister-group to Eulophini plus Elasmini.
parasitoid hyperparasitoid gall-former ectoparasitoid biological-control
Deinodryinus atriventris
Deinodryinus atriventris is a species of dryinid wasp first described by Cresson in 1872. Members of the genus Deinodryinus are ectoparasitoids of Hemiptera, particularly leafhoppers and planthoppers (Cicadellidae and Fulgoroidea). The species is part of the family Dryinidae, a group characterized by females that possess raptorial forelegs adapted for capturing host insects. Observations of this species are sparse, with limited published biological data available.
Dryinidae parasitoid Hemiptera-parasitoid North-America ectoparasitoid Cresson-1872 leafhopper-parasitoid planthopper-parasitoid raptorial-forelegs
Diglyphus
Diglyphus is a genus of minute parasitoid wasps in the family Eulophidae. Species are larval ectoparasitoids of leaf-mining flies (Diptera: Agromyzidae) and some Lepidoptera leafminers. Several species, particularly D. isaea and D. begini, are commercially used for biological control of agricultural leafminer pests in greenhouses and field crops. The genus contains at least 15 European species, with additional species described from Asia and North America.
parasitoid biological-control leafminer Eulophidae agricultural-pest-management ectoparasitoid
Digonogastra
Digonogastra is a genus of braconid wasps comprising approximately 260 described species distributed across Afrotropical, Nearctic, and Neotropical regions. Members are idiobiont ectoparasitoids that attack larval stages of stalk-boring Lepidoptera, particularly pyralid and crambid borers in gramineous crops. The genus has documented significance as a biological control agent for agricultural pests in sugarcane, maize, and sorghum systems.
parasitoid biological-control sugarcane-pest idiobiont ectoparasitoid Braconidae Diatraea Eoreuma gramineous-crops agricultural-pest-management
Dinarmus
Dinarmus is a genus of chalcidoid wasps in the family Pteromalidae with nearly cosmopolitan distribution. Species in this genus are larval-pupal ectoparasitoids of bruchid beetles (Chrysomelidae: Bruchinae), particularly pests of stored legume seeds such as cowpea. The genus includes economically important biological control agents, notably D. basalis and D. vagabundus, which are deployed in integrated pest management programs targeting Callosobruchus species. Research on D. basalis has revealed complex host discrimination behaviors, facultative superparasitism, and olfactory host location mechanisms.
ectoparasitoid biological-control stored-product-protection bruchid-parasitoid host-discrimination superparasitism sex-ratio-manipulation olfactory-orientation
Elachertus
Elachertus is a genus of small parasitoid wasps in the family Eulophidae. Species within this genus are primarily larval ectoparasitoids of Lepidoptera, with documented associations on hosts including tortricid, geometrid, syntomid, and gelechiid moths. Several species have been studied for their potential in biological control of forest and agricultural pests. The genus exhibits variation in life history strategies, with most species being idiobiont ectoparasitoids, though at least one species (E. scutellatus) has been reported as koinobiont.
parasitoid ectoparasitoid Eulophidae biological-control forest-entomology Lepidoptera-parasitoid gregarious-parasitoid
Elasmus polistis
Elasmus polistis is a minute parasitoid wasp in the family Eulophidae, first described by Burks in 1971. It is an ectoparasitoid specializing on the brood of paper wasps in the genus Polistes. The species has been documented attacking prepupae and pupae inside host nests, entering despite defensive behaviors by adult wasps. It has been recorded from the United States and Brazil, with confirmed host associations including multiple Polistes species.
parasitoid ectoparasitoid Polistes paper-wasp Eulophidae Hymenoptera social-wasp-parasite North-America South-America Brazil United-States
Entedoninae
Entedoninae is a subfamily of chalcid wasps in the family Eulophidae comprising over 90 genera. Members are primarily parasitoids with documented associations across diverse host groups including gall-inducing insects, leafminers, sawflies, thrips, and ants. The subfamily exhibits considerable morphological and ecological diversity, with species found in tropical to temperate habitats worldwide.
parasitoid biological-control gall-associated leafminer-parasitoid Chalcidoidea Hymenoptera Eulophidae Entedoninae tropical-forest agricultural-pest-control sawfly-parasitoid thrips-parasitoid ant-associated rice-pest Cecidomyiidae Tenthredinidae Pontania Closterocerus Ceranisus Afronympha Ametallon Chrysonotomyia Omphale-genus-group canopy understorey ecological-plasticity Bangladesh Panama Africa New-Zealand Europe Senegal South-Africa Democratic-Republic-of-the-Congo Uganda endoparasitoid larval-parasitoid egg-parasitoid host-specificity forest-habitat degraded-habitat mid-altitude-rainforest lowland-rainforest tropical-America classical-biological-control augmentative-biological-control integrated-pest-management rice-hispa Dicladispa-armigera gall-wasp sawfly-gall leafminer ant-symbiosis Formicidae Khaya-senegalensis Ochna-pulchra morphological-taxonomy molecular-taxonomy 28S-rDNA COI CytB new-species-description generic-revision host-range parasitoid-complex food-web ecosystem-service natural-enemy pest-management entomophagous hyperparasitoid inquiline curculionid Apion-minimum Phyllocolpa-leucosticta Chrysocharis Entedon Asecodes Pleurotroppopsis Afrotroppopsis Zaommomentedon Apleurotropis Kratoysma Platocharis Schizocharis Parahorismenus Atullya Tropicharis Chrysochuris cruy mirabilis oryzamyntor eminpashai carinatum dussiae longicaudata machaeriae unimaculata claviger gorgonaense auripunctata galbina laeviscuta phenacapsia cecvora elongata pontaniae heyeri risbeci milletiae newbyi Förster-1856 Chalcidoidea-phylogeny biodiversity species-richness cryptic-species molecular-diagnostics host-plant-association habitat-specificity canopy-fauna understorey-fauna forest-stratification tropical-biodiversity Afrotropical Neotropical Palaearctic Nearctic Oriental Australasian Pacific Holarctic biogeography taxonomic-revision annotated-key catalogue type-specimen museum-collection slide-mounted-specimens morphometrics genitalia wing-venation antennae clypeus mandibles malar-space scape pedicel flagellum gaster vertex suture color-pattern pale-femora dark-gaster sexual-dimorphism male female ovipositor emergence rearing quarantine field-collection foreign-exploration augmentative-release pesticide-resistance sustainable-agriculture food-security rice-production cereal-pest vegetable-pest fruit-pest ornamental-pest forest-pest urban-pest invasive-species native-range introduced-range establishment spread impact non-target-effects host-specificity risk-assessment environmental-safety regulatory-approval research-symposium proceedings peer-reviewed Zootaxa ZooKeys Insect-Systematics-&-Evolution Australian-Journal-of-Entomology Far-Eastern-Entomologist Russian-Entomological-Journal Belgian-Journal-of-Entomology Florida-Entomologist Pan-Pacific-Entomologist Entomological-News Proceedings-of-the-Hawaiian-Entomological-Society Transactions-of-the-American-Entomological-Society Journal-of-Natural-History Zoological-Journal-of-the-Linnean-Society BioControl Journal-of-Economic-Entomology Entomologia-Experimentalis-et-Applicata Environmental-Entomology Oecologia Cladistics Molecular-Phylogenetics-and-Evolution Heredity Canadian-Entomologist Proceedings-of-the-Entomological-Society-of-Washington Annals-of-the-Entomological-Society-of-America Bulletin-of-Entomological-Research Neotropical-Entomology Journal-of-Asia-Pacific-Entomology Turkish-Journal-of-Zoology Polish-Journal-of-Entomology North-Western-Journal-of-Zoology Entomologica-Americana Entomologische-Berichten Sahlbergia Dugesiana Acta-Zoologica-Lilloana Folia-Entomologica-Mexicana Revista-de-la-Sociedad-Entomologica-Argentina Boletin-de-la-Asociacion-Espanola-de-Entomologia Entomologicheskoe-Obozrenie Entomological-Review Zoological-Institute-RAS Proceedings-of-the-Zoological-Institute-of-the-Russian-Academy-of-Sciences Taiwan-Agricultural-Research-Institute Council-of-Agriculture University-of-California Riverside Entomology-Research-Museum California-Department-of-Food-and-Agriculture Pierce's-Disease-Control-Program biological-control-program integrated-pest-management-program research-progress-report annual-summary technical-report symposium-proceedings conference-abstract poster-presentation invited-paper monograph book-chapter identification-guide illustrated-key annotated-catalogue type-material voucher-specimen collection-curation taxonomy systematics phylogenetics molecular-systematics DNA-barcoding species-complex sibling-species species-boundaries geographic-variation population-genetics gene-flow reproductive-isolation host-race biotype strain laboratory-rearing insectary mass-production release monitoring impact-assessment efficacy economic-evaluation cost-benefit-analysis farmer-adoption extension education policy regulation international-cooperation capacity-building training workshop field-day demonstration on-farm-research participatory-research farmer-field-school sustainable-intensification agroecology conservation-biological-control habitat-management floral-resources refuge buffer-zone landscape-complexity connectivity spillover natural-enemy-diversity food-web-structure trophic-interactions multitrophic indirect-effects trait-mediated density-dependent inverse-density-dependent functional-response numerical-response searching-efficiency handling-time oviposition-behavior host-selection host-acceptance host-suitability host-quality host-stage-preference egg-load progeny-allocation sex-ratio local-mate-competition sib-mating inbreeding fitness longevity fecundity development-time thermal-requirements degree-days phenology synchrony asynchrony seasonal-adaptation diapause quiescence cold-hardiness heat-tolerance desiccation-resistance starvation-resistance dispersal flight walking foraging patch-use area-restricted-search oviposition-marking host-marking superparasitism multiparasitism intraguild-predation hyperparasitism autoparasitism heteronomous-hyperparasitism facultative-hyperparasitism obligate-hyperparasitism primary-parasitoid secondary-parasitoid tertiary-parasitoid mummy aphid-mummy scale-mummy pupal-parasitoid egg-larval-parasitoid larval-pupal-parasitoid idiobiont koinobiont ectoparasitoid solitary gregarious polyembryony thelytoky arrhenotoky diploid haplodiploid chromosome-number genome-size transcriptome proteome metabolome morphome phenome extended-phenotype niche-construction ecosystem-engineering keystone-species ecosystem-service-provider functional-group guild trophic-level energy-flow nutrient-cycling decomposition predation herbivory parasitism mutualism commensalism competition apparent-competition exploitative-competition interference-competition scramble-competition contest-competition resource-partitioning niche-differentiation character-displacement co-evolution arms-race Red-Queen geographic-mosaic local-adaptation phenotypic-plasticity genetic-adaptation epigenetics 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Ephialtini
Ephialtini is a tribe of ichneumonid wasps within the subfamily Pimplinae, comprising approximately 17 genera and at least 120 species. Members are exclusively parasitoids of spiders (Araneae), with many species belonging to the 'Polysphincta group' that attack post-embryonic spiders. These wasps exhibit diverse host specificity patterns, ranging from polyphagy across multiple spider families to strict specialization on particular host species or genera. Some species parasitize adult spiders while others attack spider egg sacs.
parasitoid spider-parasitoid koinobiont ectoparasitoid Polysphincta-group ichneumonid biological-control host-specificity DNA-barcoding
Eulophinae
Eulophinae is a subfamily of chalcid wasps in the family Eulophidae, comprising over 90 genera. Molecular phylogenetic studies have shown it to be a derived group within Eulophidae, not an ancestral one as previously thought. The subfamily contains three recognized tribes: Eulophini, Elasmini, and Cirrospilini. Members are primarily ectoparasitoids, with some species functioning as hyperparasitoids or gall-formers.
parasitoid ectoparasitoid hyperparasitoid biological-control Chalcidoidea
Eulophus
Eulophus is a genus of chalcidoid wasps in the family Eulophidae. Species are gregarious ectoparasitoids, primarily attacking lepidopteran larvae. The genus has been extensively studied for its biological control potential, particularly E. pennicornis against the tomato moth Lacanobia oleracea. Wasp larvae feed externally on host caterpillars and possess sophisticated host manipulation capabilities including developmental arrest and immune suppression.
ectoparasitoid biological-control gregarious host-manipulation Lepidoptera-parasitoid Eulophidae Chalcidoidea
Eupelmus messene
Eupelmus messene is a tiny parasitoid wasp in the family Eupelmidae. Females are brachypterous (short-winged) and reproduce via thelytoky, producing only daughters. The species is a specialized idiobiont ectoparasitoid of the gall wasp Aulacidea hieracii, attacking both concealed and exposed larvae and pupae of its host. Females possess a remarkably thin, flexible, and mobile ovipositor capable of drilling through hard substrates, including polystyrene Petri dish walls in laboratory observations.
parasitoid gall-wasp-associate ovipositor-drilling thelytoky brachypterous biomimetics idiobiont ectoparasitoid
Euplectrus
Euplectrus is a cosmopolitan genus of parasitoid wasps in the family Eulophidae, distinguished by unique morphological and biological traits. All species are ectoparasitoids of caterpillars from diverse moth families. The genus exhibits distinctive larval adaptations, including the ability to spin silk cocoons—a feature unique within Eulophidae. Species-level identification is challenging due to morphological conservatism.
parasitoid ectoparasitoid biological-control gregarious silk-production
Euplectrus comstockii
Euplectrus comstockii is an ectoparasitoid wasp in the family Eulophidae that parasitizes larval Lepidoptera. Adult females inject venom containing a developmental arrestant that arrests host molting and metamorphosis, maintaining the host in a suitable state for parasitoid offspring development. The species has been studied extensively for its host-parasitoid interactions, venom biochemistry, and potential use in biological control programs. Developmental timing varies with temperature: at 24°C and 72.8% relative humidity, the egg stage lasts approximately 1.75 days, larval stage 5.0 days, prepupa 0.95 days, and pupa 5.5 days.
ectoparasitoid biological-control venom developmental-arrestant soybean-pest Anticarsia-gemmatalis Eulophidae Lepidoptera-parasitoid
Euplectrus platyhypenae
Euplectrus platyhypenae is a gregarious ectoparasitoid wasp in the family Eulophidae that develops externally on lepidopteran host larvae. The species has been documented attacking fall armyworm (Spodoptera frugiperda) in laboratory studies and peanut foliage-feeding caterpillars in Oklahoma. Females exhibit host strain preference, ovipositing preferentially on corn-strain fall armyworm over rice-strain hosts. Development is rapid, with egg-to-adult times of approximately 9.8–10.5 days depending on host strain.
parasitoid ectoparasitoid gregarious biological-control fall-armyworm Spodoptera-frugiperda agricultural-pest-management Eulophidae
Exeristes
Exeristes is a genus of ichneumon wasps (family Ichneumonidae) containing approximately nine described species. Species in this genus are ectoparasitoids of insect larvae. Exeristes roborator has been extensively studied for its associative learning abilities, demonstrating capacity to learn olfactory and visual cues associated with host microhabitats. E. comstockii has been used in nutritional studies examining dietary requirements for reproduction.
ichneumonidae ectoparasitoid associative-learning biological-control nutritional-requirements
Goniozus legneri
Goniozus legneri is a gregarious larval ectoparasitoid wasp in the family Bethylidae, native to Argentina. It parasitizes concealed-feeding lepidopteran larvae and has been evaluated as a biological control agent for multiple agricultural pests including the European grapevine moth (Lobesia botrana), carob moth (Ectomyelois ceratoniae), codling moth (Cydia pomonella), tomato leafminer (Tuta absoluta), and cactus moth (Cactoblastis cactorum). The species exhibits parental care behavior, with females guarding their brood for approximately four days. While it has shown promise in augmentative biological control programs, its effectiveness varies considerably depending on host species and rearing conditions.
parasitoid biological-control ectoparasitoid gregarious parental-care agricultural-pest-management Argentina-native Bethylidae
Habrobracon
Habrobracon is a genus of minute parasitoid wasps in the family Braconidae. Species in this genus are ectoparasitoids of moth caterpillars, with Habrobracon hebetor being the most extensively studied and commercially utilized species. These wasps have been employed in augmentative biological control programs worldwide, particularly in developing countries, to manage stored-product pests and field crop pests without chemical insecticides. The genus has also served as a model organism for radiation biology research due to its remarkable resistance to ionizing radiation.
parasitoid biological-control ectoparasitoid stored-product-pest-management radiation-resistance augmentative-biological-control developing-countries model-organism
Habrobracon hebetor
Habrobracon hebetor is a minute braconid wasp and gregarious ectoparasitoid of lepidopteran larvae. Females paralyze host caterpillars with venom and lay up to 45 eggs externally on the host body; larvae feed on host hemolymph, leaving only the cuticle. One generation develops in 9–14 days under optimal conditions of 25–30°C and 70–80% relative humidity. The species is widely used in augmentative biological control programs against stored-product pests and field crop pests, with mass-reared releases achieving 70–90% biological efficacy. It exhibits high genetic diversity across geographic populations and can enter diapause for cold storage.
biological-control ectoparasitoid gregarious stored-product-pest diapause Wolbachia haplodiploid augmentative-biological-control post-harvest-pest-management integrated-pest-management
Iseropus
Iseropus is a genus of ichneumon wasps comprising approximately nine described species. Members are ectoparasitoids of lepidopteran hosts, with documented associations including pupal parasitism of noctuid moths and larval parasitism of pyralid moths. The genus exhibits a broad distribution across multiple continents, with species described from the Americas, Europe, and Asia. Some species have been studied for their venom-mediated manipulation of host lipid metabolism.
parasitoid ectoparasitoid venom biological-control Ichneumonidae Lepidoptera-host
Laelius
Laelius is a cosmopolitan genus of small parasitoid wasps in the family Bethylidae, subfamily Epyrinae. Species are ectoparasitoids of beetle larvae, primarily attacking Dermestidae (larder beetles), with some species also associated with Scolytinae and Glossinidae. The genus contains approximately 68 valid species worldwide, with significant diversity in the Palaearctic region. Several species have been investigated for biological control of stored product pests and forest pests.
parasitoid biological-control Dermestidae stored-product-pests ectoparasitoid
Lebia bilineata
Lebia bilineata is a species of ground beetle in the family Carabidae, characterized by its distinctive coloration and pattern. It is one of numerous species in the diverse genus Lebia, which are commonly known as colorful foliage ground beetles. The species is found in Mexico and the United States, with records from the southwestern and western regions of the U.S.
Carabidae Lebiinae ground-beetle Mexico United-States ectoparasitoid Chrysomelidae
Mastrus
Mastrus is a genus of ichneumonid wasps (Hymenoptera: Ichneumonidae) containing parasitoid species that attack lepidopteran hosts, particularly tortricid moths. The genus includes species of significant agricultural importance as biological control agents, notably M. ridens and M. ridibundus, which parasitize the codling moth (Cydia pomonella). Species in this genus are gregarious ectoparasitoids that attack host larvae during the cocooning/prepupal stage. Research has focused on their olfactory host-finding mechanisms, thermal biology, and integration into conservation biological control programs.
parasitoid biological-control codling-moth apple-pest-management ectoparasitoid gregarious Ichneumonidae
Megischus
crown wasp
Megischus is a large genus of crown wasps (family Stephanidae) containing over 90 described species with a cosmopolitan distribution centered in subtropical and tropical regions. The genus is characterized by medium to large body size, with adults ranging from approximately 10–40 mm in length (excluding the ovipositor). Females possess an exceptionally long ovipositor that typically exceeds body length, used to parasitize wood-boring beetle and hymenopteran larvae. The genus serves as an important biological control agent for pest populations of hardwood-damaging insects.
parasitoid wood-borer biological-control crown-wasp rarely-collected subtropical tropical hardwood-forest diurnal ectoparasitoid
Melittobia
Melittobia is a genus of tiny parasitoid wasps in the family Eulophidae, notable for extreme polymorphism, complex social behaviors, and highly female-biased sex ratios. Females exhibit three distinct morphs—winged 'fliers,' short-winged 'jumpers,' and wingless 'crawlers'—determined by larval density rather than genetics. Males are blind, flightless, and comprise only about 5% of offspring, produced asexually through arrhenotokous parthenogenesis. The genus attacks prepupae and pupae of solitary bees, wasps, and other insects in their hosts' nests, with some species also parasitizing fruit flies and flesh flies. Several species are well-studied model organisms for genetics, developmental biology, and behavioral ecology, though taxonomic confusion persists due to extreme morphological plasticity.
parasitoid polymorphism arrhenotoky sex-ratio model-organism gregarious ectoparasitoid Eulophidae Tetrastichinae hymenoptera developmental-plasticity kin-selection pheromone lethal-male-combat morph-determination cosmopolitan biological-control bee-parasite wasp-parasite
Minotetrastichus
Minotetrastichus is a genus of minute parasitoid wasps in the family Eulophidae. Species are ectoparasitoids of leaf-mining insects, primarily targeting larvae and pupae of Lepidoptera, Coleoptera, and Hymenoptera. The genus was established by Kostjukov in 1977. Detailed biological information exists primarily for Minotetrastichus frontalis, which parasitizes the lime leaf miner Phyllonorycter issikii.
parasitoid leaf-miner ectoparasitoid Eulophidae biological-control
Minotetrastichus frontalis
Minotetrastichus frontalis is a chalcid wasp in the family Eulophidae. It is an ectoparasitoid of leaf-mining moths in the genus Phyllonorycter, with larvae feeding on both larval and pupal stages of the host. The species has four larval instars and completes preimaginal development in 11–14 days.
parasitoid leaf-miner Phyllonorycter Tilia biological-control ectoparasitoid Eulophidae Tetrastichinae
Mutillidae
Velvet Ants, Hairy Ants, Panda Ants
Mutillidae, commonly known as velvet ants, are a family of solitary wasps comprising over 3,000 described species. Despite their common name, they are not ants but wingless female wasps that resemble large, hairy ants. The family exhibits striking sexual dimorphism: females are apterous (wingless), brightly colored, and possess a powerful sting, while males are winged and generally darker in coloration. Velvet ants are parasitoids of ground-nesting bees and wasps, with females actively searching for host nests to lay eggs on or near the host pupae or larvae. They form one of the world's largest known Müllerian mimicry complexes, with numerous species sharing aposematic red, orange, or yellow and black coloration to warn predators of their potent defensive capabilities.
aposematic-coloration Müllerian-mimicry sexual-dimorphism ectoparasitoid wingless-female stridulation phoretic-copulation painful-sting ground-nesting-host solitary-wasp
Myosoma
Myosoma is a genus of parasitoid wasps in the family Braconidae (Hymenoptera). The genus was described by Brullé in 1846 and has priority over a later homonym in Entoprocta. At least two species are known from the Old World: M. chinensis and M. nyanzaensis, the latter described from Kenya as a gregarious ectoparasitoid of the stem-borer pest Chilo partellus.
parasitoid ectoparasitoid gregarious agricultural-pest-control Afrotropical Braconidae