Invasive-species
Guides
Nylanderia
Crazy ants
Nylanderia is a large genus of formicine ants with over 130 described species and a nearly cosmopolitan distribution, notably absent from Europe. The genus was resurrected from synonymy with Paratrechina in 2010 based on molecular phylogenetics and morphological reassessment. Species range from small to medium in size (1–4 mm) and exhibit coloration from pale yellow to black. Several species are significant invasive pests, including N. fulva (tawny crazy ant) and N. bourbonica, which form massive supercolonies and cause ecological and economic damage.
Nylanderia bourbonica
Robust Crazy Ant
Nylanderia bourbonica, commonly known as the Robust Crazy Ant, is a widespread invasive tramp ant species native to tropical regions. It has been introduced to multiple continents including North America, where it is established in Florida and other subtropical areas. The species exhibits characteristic erratic, rapid movement patterns and forms large polygynous colonies. As a generalist forager associated with human-modified environments, it can reach nuisance pest levels in urban settings.
Nylanderia fulva
Tawny Crazy Ant, Rasberry Crazy Ant, Caribbean Crazy Ant, Brown Crazy Ant, Invasive Crazy Ant, Hairy Crazy Ant
Nylanderia fulva, commonly known as the tawny crazy ant, is an invasive ant species native to South America that has become a significant pest in the southern United States. The species is characterized by its erratic, rapid movement patterns and ability to form enormous supercolonies with millions of workers. It was first reported in the continental United States in 1938 but only recognized as a serious pest in the 1990s in Florida and 2000s in Texas. The ant exhibits a unicolonial social structure in its invasive range, with interconnected nests showing no intraspecific aggression.
Nysius
false chinch bugs
Nysius is a large genus of seed-feeding true bugs in the family Lygaeidae, commonly known as false chinch bugs. The genus contains approximately 100-106 described species with worldwide distribution. Several species are significant agricultural pests, including N. huttoni (wheat bug) in New Zealand and N. cymoides in Europe and Turkey. A unique Hawaiian radiation contains 26 species, including two flightless, predatory wēkiu bugs (N. wekiuicola and N. aa) that feed on dead and dying insects on high-elevation volcanoes. Most species feed on seeds and plant fluids, though some exhibit atypical feeding behaviors.
Obolodiplosis robiniae
locust gall midge, black locust gall midge
Obolodiplosis robiniae is a small gall midge (Diptera: Cecidomyiidae) native to eastern North America that has become a significant invasive pest in Eurasia. The species is monophagous on Robinia species, particularly black locust (Robinia pseudoacacia), forming distinctive leaf margin roll galls through gregarious larval feeding. First described from Pennsylvania in 1847, it was detected in Asia in 2002-2003 (Japan, Korea) and Europe in 2003 (Italy), subsequently spreading explosively to 26 European countries and much of China. Climate modeling predicts substantial northward range expansion under warming scenarios, with suitable habitat potentially increasing by 35% by 2070. The midge reduces host tree growth and productivity, causes early leaf abscission, and facilitates secondary pest attacks by wood-boring beetles.
Ochetellus
Ochetellus is a genus of small black ants in the subfamily Dolichoderinae, established by Steve Shattuck in 1992 to accommodate species previously placed in Iridomyrmex. The genus contains seven described species and three subspecies, predominantly native to Australia with some Asian distributions. Several species have been introduced outside their native range, including O. glaber which has established populations in New Zealand, Hawaii, and the continental United States. These ants occupy diverse habitats from sclerophyll woodlands to urban environments.
Ochlerotatus scapularis
Aedes scapularis
Ochlerotatus scapularis is a neotropical mosquito species with expanding distribution, now established in mainland Florida after first detection in the Florida Keys in 1945. The species exhibits strong anthropophilic feeding behavior, with documented human blood meals comprising 83% of engorged females. It is known to transmit multiple pathogens of medical and veterinary importance, including yellow fever virus, Venezuelan equine encephalitis virus, and Dirofilaria immitis. Recent ecological niche modeling predicts potential for further northward expansion along the US Gulf Coast.
Ochyromera ligustri
ligustrum weevil, Ligustrum Seed Weevil
Ochyromera ligustri is a small seed-feeding weevil (3.0–4.7 mm) in the family Curculionidae. Native to the Palearctic region, it was first detected in North America in North Carolina in 1959 and has since spread across the southeastern United States. The species specializes on Ligustrum species (privets), with adults feeding on foliage and fruits while larvae develop internally within seeds. Its narrow host specificity and seed-feeding habit have led to consideration as a fortuitous biological control agent against invasive privets.
Oligotoma saundersii
Saunders' embiid, Saunders' Webspinner
Oligotoma saundersii is a webspinner (order Embioptera) native to southern Asia that has become a widespread invasive species in tropical and subtropical regions worldwide. Adult males possess long narrow wings and are attracted to lights at night, while females are flightless and chocolate-brown in color. The species constructs silken galleries in concealed humid locations and has been introduced to the United States, where its range extends from Texas to Florida.
Omosita nearctica
Northern Sap Beetle
Omosita nearctica is a small sap-feeding beetle in the family Nitidulidae, native to the Nearctic region. The species is a stored-product pest with documented associations to carrion, giving it potential significance as both a biosecurity risk and a forensic indicator. It has established populations in South Africa, representing the first African record for this species. The mature larva was described for the first time in 2021 based on specimens collected from this introduced population.
Operophtera
winter moths
Operophtera is a genus of geometrid moths comprising approximately four recognized species, including the economically significant winter moth (O. brumata) and Bruce spanworm (O. bruceata). The genus is notable for its unusual winter-active adult phenology, with adults emerging and mating during cold months when most other Lepidoptera are dormant. Several species have been introduced outside their native ranges, with O. brumata established as an invasive defoliator in North America. The genus has become a model system for studying hybrid zone dynamics, as O. brumata and O. bruceata form a documented clinal hybrid zone in the northeastern United States.
Ophelimus
Eucalyptus gall wasps
Ophelimus is a genus of minute wasps in the family Eulophidae. Species in this genus are gall inducers, causing the formation of leaf galls on Eucalyptus plants. Several species, including O. maskelli and O. eucalypti, have become invasive pests in Eucalyptus plantations outside their native Australian range. The genus is subject to biological control efforts using parasitoids such as Closterocerus chamaeleon.
Ophelimus maskelli
eucalyptus gall wasp, Australian Eucalyptus Leafgall Wasp
Ophelimus maskelli is a minute chalcid wasp (approximately 1 mm long) native to Australia and New Zealand that has become invasive across multiple continents. Females oviposit on immature eucalyptus leaves, inducing leaf galls that host developing larvae. Heavy infestations cause widespread defoliation and growth loss in eucalyptus plantations. The species has been successfully suppressed in some regions through biological control using parasitoids, particularly Closterocerus chamaeleon and Stethynium ophelimi.
Orchesella villosa
Shaggy Springtail, Slender Springtail
Orchesella villosa is a species of springtail in the family Orchesellidae, characterized by its slender body and shaggy appearance. Native to Europe and the Mediterranean region, it has been introduced to North America where it is considered invasive. The species has become a model organism for studying urban evolution, with research demonstrating microgeographic divergence in physiological traits among populations separated by less than one kilometer within cities.
Orchestes
flea weevils
Orchestes is a genus of flea weevils (Curculionidae) comprising six species in North America and additional species in Eurasia. Members are small beetles (2–4 mm) associated with woody host plants, particularly trees in Ulmaceae and Fagaceae. The genus was historically confused with Rhynchaenus, from which it has been redefined. Several species are significant pests: O. steppensis is a destructive invasive of elms in China and North America, O. alni (European elm flea weevil) damages elms in Europe and North America, and O. fagi attacks beech trees. Larval habits vary—most are leaf miners, though O. hustachei uniquely parasitizes aphid galls.
Orchestes fagi
Beech leaf-mining weevil, beech leaf-miner beetle
Orchestes fagi is a small weevil species native to Europe that has become invasive in North America, where it attacks American beech (Fagus grandifolia). The larvae mine the leaves of beech trees, while adults undergo an extended diapause of eight to nine months, overwintering on tree boles. The species has spread through eastern Nova Scotia, Canada, with human-assisted transport via firewood and timber implicated in its range expansion.
Orchestes steppensis
European Elm Flea Weevil, Elm Flea Weevil
Orchestes steppensis is a small flea-weevil (2.6–3.2 mm) native to the Eastern Palaearctic Steppe region and now invasive in North America. It is a serious pest of elm trees (Ulmus spp.), with adults feeding on leaves and larvae mining leaf tissue. The species was previously misidentified as O. alni or O. mutabilis in China. It completes one generation per year in Xinjiang, China, with overwintering adults emerging in late March to early April. The species exhibits strong olfactory-mediated host location, with documented preferences for specific plant volatiles.
Orconectes limosus
spiny-cheek crayfish
Orconectes limosus, commonly known as the spiny-cheek crayfish, is a freshwater crayfish native to North America that has become a widespread invasive species in Europe. First recorded in Belarus in 1997, it has demonstrated rapid upstream dispersal, spreading 177 km along the Neman River over 14 years. The species is now established in at least 8 river systems across the Neman, Narew and Western Bug basins. Surveys indicate potential competitive displacement of native crayfish species, as no native crayfish have been found co-occurring with O. limosus in invaded areas. The species exhibits notable social behaviors including mother-offspring recognition and kin-preferential interactions.
Orconectes rusticus
Rusty Crayfish
Orconectes rusticus, commonly known as the rusty crayfish, is a freshwater crayfish native to the Ohio River basin in the United States. The species has become a highly successful invasive organism in northern lakes and streams across North America, where it displaces native crayfish through aggressive behavioral dominance. Research has documented its capacity for learned associations involving predator cues, complex social recognition systems using chemical signals, and flexible spatial learning. The species' invasion success stems from a combination of behavioral traits including high aggression, broad habitat tolerance, and efficient resource utilization.
invasive-speciesaggressive-behaviorchemical-communicationfreshwater-crayfishsecond-order-conditioningecosystem-impactrange-expansionbehavioral-ecologyspecies-displacementpredator-learningagonistic-behaviorthermal-ecologydetritivorebenthic-invertebratedecapod-crustaceanGreat-Lakes-invasivebait-introductionurine-communicationself-assessmentspatial-memoryOrientus ishidae
Japanese leafhopper, Mosaic leafhopper
Orientus ishidae is a leafhopper native to East Asia that has established populations across Europe and North America. Adults measure 4.5–6.5 mm and display a distinctive mosaic pattern on the forewings with an orange band between the eyes. The species is recognized as an alternative vector of phytoplasma diseases affecting grapevines, including Flavescence dorée, and has demonstrated capacity to acquire pathogens associated with Apple Proliferation and Elm Yellows. Its introduction to European agricultural landscapes has raised concerns due to its broad host plant range and potential to bridge wild and cultivated pathosystems.
Ortheziidae
ensign scales, ortheziids
Ortheziidae is a family of scale insects (Hemiptera) commonly known as ensign scales, comprising 20 genera and 198 species. The family has a cosmopolitan distribution with species richness concentrated in the Neotropical and Nearctic regions; representation is sparse in Australasia and the Far East. Members are distinguished by their mobile adult females, six legs, and prominent waxy secretions. Several species are economically significant agricultural pests.
Orthotomicus
Orthotomicus is a genus of bark beetles in the family Curculionidae, subfamily Scolytinae, containing approximately nine described species. The genus is primarily associated with coniferous trees, particularly pines (Pinus spp.) and cedars (Cedrus spp.). Several species, notably Orthotomicus erosus (Mediterranean pine engraver) and O. laricis, have become significant forest pests through native population outbreaks and invasive range expansions. Species in this genus are known for their associations with ophiostomatoid fungi, which they vector and which contribute to tree decline.
Orthotomicus erosus
Mediterranean pine engraver
Orthotomicus erosus, the Mediterranean pine engraver, is a bark beetle native to the Mediterranean region, southern Europe, Asia, and North Africa. It is primarily a secondary pest that colonizes stressed, weakened, or recently dead pine trees, but can reach outbreak levels and attack healthy trees during drought conditions or following fire. The species has expanded its range through domestic and international trade, with established populations in South America (Argentina and Uruguay) and South Africa. It vectors multiple ophiostomatoid fungi, including Ophiostoma ips, which contribute to blue staining and tree decline.
Otiorhynchus sulcatus
black vine weevil, vine weevil, strawberry weevil, cyclamen weevil
Otiorhynchus sulcatus is a parthenogenetic weevil native to the Palearctic region that has become a globally significant horticultural pest. Adults are flightless, nocturnal, and feed on foliage, producing characteristic notching damage along leaf margins. Larvae develop belowground, feeding on roots, corms, and rhizomes, causing severe plant damage or death. The species reproduces exclusively through thelytokous parthenogenesis; males are absent from all populations. Adults exhibit strong visual and thigmotactic preferences for refuge selection, favoring dark colors (black, blue), tall silhouettes, and basal entrance openings.
Oulema melanopus
cereal leaf beetle
Oulema melanopus is a leaf beetle native to Eurasia that was introduced to North America in 1962, where it has since become a significant economic pest of small grain crops. The species is particularly damaging to spring wheat and oats, with outbreaks that are sporadic and difficult to predict. Larval feeding causes the most damage by skeletonizing leaves. Management relies on insecticides, though biological control using introduced parasitoids and host plant resistance breeding programs offer promising alternatives.
Oxidus
greenhouse millipedes
Oxidus is a genus of flat-backed millipedes in the family Paradoxosomatidae, containing approximately nine described species, though recent revision recognizes five valid species with one species inquirenda. The genus is characterized by a cosmopolitan member, Oxidus gracilis (the greenhouse millipede), which has achieved global distribution in temperate and sub-tropical regions, while other species exhibit restricted endemic ranges. Phylogenetic analysis based on mitochondrial COI and 16S rRNA genes confirms Oxidus as monophyletic and closely related to the genus Tylopus. Species within the genus are distinguished primarily by gonopod morphology, coloration, and body size.
Oxidus gracilis
Greenhouse Millipede, Hothouse Millipede, Short-flange Millipede, Garden Millipede
Oxidus gracilis is a widely introduced millipede species in the family Paradoxosomatidae, native to Asia but established globally including North America, South America, Europe, and Pacific islands. It is commonly known as the greenhouse millipede due to its frequent occurrence in artificial environments. The species exhibits innate congregating behavior toward food resources and demonstrates generalist habitat use with no strong association to specific soil moisture, leaf litter, or rock cover conditions. It has been studied as a potential bioindicator for environmental pollution due to characteristic internal element composition.
Pachodynerus
potter wasps
Pachodynerus is a genus of approximately 50 species of solitary potter wasps in the subfamily Eumeninae. The genus exhibits highest diversity in central South America, with species distributed across the Neotropical and Nearctic regions. These wasps are cavity-nesters that construct mud cells in pre-existing holes, including abandoned insect burrows, plant stems, and human-made structures. Several species have been introduced beyond their native ranges, including P. nasidens which has established populations on oceanic islands and caused aviation safety incidents in Australia by nesting in aircraft pitot probes.
Pachodynerus nasidens
Keyhole Wasp
Pachodynerus nasidens, commonly known as the keyhole wasp, is a solitary mason wasp in the family Vespidae, subfamily Eumeninae. Native to the Neotropics, it has been introduced to Hawaii, Micronesia, Australia, and the northern United States. The species exhibits remarkable nesting plasticity, utilizing abandoned insect galleries, human-made cavities, and even aircraft pitot tubes. Females provision nests with paralyzed caterpillars as food for their larvae. The species has gained notoriety for causing aviation safety incidents by blocking pitot probes with mud nests, leading to unreliable airspeed readings.
Pachycondyla
Panther Ants
Pachycondyla is a genus of ponerine ants found in the Neotropics. Following a major taxonomic revision by Schmidt & Shattuck (2014), the genus was drastically reduced from hundreds of species to eleven extant species, with many former members moved to revived genera. The genus now contains primarily Neotropical species distributed from the southern United States to northern Argentina. Some species, such as P. chinensis (Asian needle ant), have become invasive beyond their native ranges. The genus includes both ground-nesting and arboreal species, with some forming mutualistic relationships with plants.
Pacifastacus
Pacific Crayfish
Pacifastacus is a genus of freshwater crayfish endemic to western North America, comprising six species including the widespread signal crayfish (P. leniusculus) and two extinct species. The genus has gained significant conservation attention due to the invasive spread of P. leniusculus in Europe and Japan, where it transmits crayfish plague and displaces native species. Within its native range, several Pacifastacus species face population declines from habitat degradation and competition from invasive crayfishes.
Pacifastacus leniusculus
Signal Crayfish
The signal crayfish is a large North American freshwater crayfish introduced to Europe in the 1960s to replace declining native fisheries. It has become one of the most ecologically impactful invasive decapods in Europe, outcompeting native crayfish and serving as a carrier of crayfish plague (Aphanomyces astaci). The species establishes self-sustaining populations rapidly, with six age cohorts documented within a few years of introduction. It shows sex- and size-specific coloration patterns, with males displaying more saturated and brighter ventral claw surfaces than females, suggesting a role in intraspecific communication.
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frontalis
Pagiocerus frontalis is an invasive bark beetle in the family Curculionidae, subfamily Scolytinae, native to Central and South America. First detected in Africa in December 2018 in Arusha, Tanzania, it has emerged as a significant pest of stored maize and avocado seeds. The beetle bores into grains, producing powdery frass and exit holes, and can perforate woven polypropylene storage bags. Laboratory studies in Tanzania demonstrated substantial damage across 27 maize varieties, with grain damage ranging from 42.5% to 92.5%. Its invasion pattern and damage potential resemble those of the larger grain borer (Prostephanus truncatus), which caused severe losses following its introduction to Africa.
Palaemon
Glass Shrimps
Palaemon is a genus of caridean shrimp in the family Palaemonidae, commonly known as glass shrimps. The genus is widely distributed across marine, brackish, and freshwater habitats in temperate and tropical regions. Molecular studies suggest the conventional circumscription of Palaemon is likely paraphyletic, with related genera Palaemonetes, Exopalaemon, and Couteriella nested within it. Phylogenetic relationships in this group correspond more closely with geographic origin than with traditional genus-level taxonomy.
Panaphidini
Panaphidini is a tribe of aphids within the subfamily Calaphidinae, established by Oestlund in 1923. The tribe comprises approximately 50 genera divided into two subtribes: Myzocallidina and Panaphidina. Many genera are associated with woody host plants, particularly in the families Fagaceae, Betulaceae, and Salicaceae. The tribe includes economically significant pests such as species of Tinocallis and Monellia.
Panaphis juglandis
Walnut Aphid, Large Walnut Aphid
Panaphis juglandis, the large walnut aphid, is a phloem-feeding pest of walnut trees (Juglans regia). It colonizes exclusively the upper (adaxial) surface of walnut compound leaves, forming dense colonies along the main vascular veins of the outer leaflets. Native to the Old World (Central Asia and southeastern Europe), it has spread across Europe and was introduced to California in the early 20th century. The species reduces tree vigor, nut yield, and quality, and excretes honeydew that promotes sooty mold growth. It forms mutualistic relationships with ant species that tend and protect colonies from predators.
Panopeidae
mud crabs
Panopeidae is a family of true crabs comprising 26 genera of free-living species commonly known as mud crabs. Centers of diversity are the Atlantic Ocean and eastern Pacific Ocean, with most species inhabiting soft-bottomed marine environments. The family exhibits extensive morphological convergence among genera due to similar habitat and dietary preferences. Several species have been documented as invasive, including Dyspanopeus sayi, which has spread from North America to European and Black Sea waters.
Parapediasia
Parapediasia is a genus of crambid moths established by Bleszynski in 1963. The genus comprises approximately twelve described species distributed primarily in the Americas. At least one species, Parapediasia teterrella, has been documented as invasive in East Asia. Adult emergence patterns have been studied in P. teterrella, showing seasonal progression in timing and consistent sex ratios.
Parapoynx diminutalis
Hydrilla leafcutter moth
Parapoynx diminutalis is an Asian aquatic moth in the family Crambidae, first described from southeast Asia in 1880. The species has established adventive populations in North America (first recorded Florida 1976), Central America (Panama), Africa, and Europe (United Kingdom). Larvae are aquatic and feed on submerged macrophytes, with documented development on Hydrilla verticillata, Chara vulgaris, Ottelia alismoides, Blyxa auberti, and Cyperus rotundus. Despite early interest as a biological control agent for invasive hydrilla, its generalist feeding habits precluded intentional release.
Paratrechina
longhorn crazy ants
Paratrechina is a genus of ants in the subfamily Formicinae containing six described species. The genus underwent major taxonomic revision in 2010 when it was discovered to be paraphyletic, resulting in the elevation of Nylanderia to generic status and reducing Paratrechina to a single species. Subsequent revisions between 2013 and 2016 restored the genus to six species through new descriptions and transfers from Prenolepis. The longhorn crazy ant (Paratrechina longicornis) is the most widely distributed species, having become a pantropical invasive pest through human-mediated transport. Most species are native to sub-Saharan Africa and Madagascar, with one species (P. umbra) native to Southeast Asia.
Paratrechina longicornis
Longhorn Crazy Ant, Black Crazy Ant
Paratrechina longicornis, commonly known as the longhorn crazy ant or black crazy ant, is a small dark-colored ant species in the family Formicidae. It is one of the most widely distributed ant species globally, found in nearly every tropical and subtropical location through human-mediated transport. The species exhibits remarkable adaptability to human-modified environments, thriving in urban centers, greenhouses, and buildings even in temperate climates. Its erratic, non-linear movement patterns earned it the common name 'crazy ant'. The species is considered one of the world's worst invasive ant species due to its ecological and economic impacts.
Parectopa robiniella
Locust Digitate Leafminer, Locust Digitate Leafminer Moth
Parectopa robiniella is a small gracillariid moth native to North America that has become invasive in Europe. First detected in Italy in 1970, it has since spread to at least ten European countries including Ukraine, where it was first recorded in 2003. The species is a specialist leaf miner whose larvae feed on Robinia species, particularly the black locust (Robinia pseudoacacia). Its spread has been facilitated by global warming and the widespread planting of its host tree.
Paropsisterna
leaf beetles, eucalyptus leaf beetles
Paropsisterna is a genus of chrysomelid leaf beetles containing over 120 species native to Australia and Papua New Guinea. Many species exhibit bright aposematic coloration and feed on Myrtaceae, particularly Eucalyptus. Several species have become invasive pests in New Zealand and Europe, causing significant defoliation of eucalypt plantations and ornamental trees. The genus was redefined in 2006 to include species formerly placed in Chrysophtharta and other genera.
Paropsisterna m-fuscum
Eucalyptus Leaf Beetle
Paropsisterna m-fuscum is a small leaf beetle in the subfamily Chrysomelinae, native to Australia and now invasive in California, USA. It has become a significant forestry pest, particularly on Blue Gum eucalyptus. The species can reach high population densities and causes defoliation damage. Both adults and larvae feed on eucalyptus foliage.
Penestragania
Penestragania is a genus of leafhoppers in the family Cicadellidae, subfamily Iassinae, tribe Hyalojassini. The genus was established by Beamer & Lawson in 1945 and is native to North America. The species Penestragania apicalis has been recorded as invasive in Eastern Europe, where it was first detected in Donetsk, Ukraine in July 2020. Members of this genus are specialized phytophages associated with woody host plants.
Penestragania apicalis
Penestragania apicalis is a North American leafhopper species that has established as an invasive specialist phytophage of honey locust (Gleditsia triacanthos) in Europe. First recorded in Eastern Europe in July 2020 in Donetsk, Ukraine, it represents the third specialized pest of this host plant introduced to the continent. The species is attracted to light and has been detected using light traps, with its wide distribution in Europe suggested by records at considerable distances from initial introduction points. Its invasion vectors include unintended introduction with planting material and independent adult dispersal.
Pentatomidae
stink bugs, shield bugs
Pentatomidae is the largest family in the superfamily Pentatomoidea, comprising approximately 900 genera and over 4,700 species. Members are commonly known as stink bugs or shield bugs, distinguished by their ability to release defensive secretions when disturbed. The family exhibits diverse feeding strategies: most species are phytophagous and include major agricultural pests, while members of the subfamily Asopinae are predatory. The family name derives from Greek 'pente' (five) and 'tomos' (section), referring to the five-segmented antennae characteristic of all pentatomids.
Pentatominae
shield bugs, stink bugs
Pentatominae is the largest subfamily within Pentatomidae, comprising approximately 4,937 species in 938 genera. Members are commonly known as shield bugs or stink bugs due to their characteristic body shape and defensive secretions. The subfamily includes numerous agricultural pests and several invasive species that have become household pests in introduced ranges. Higher systematics of the group have been revised by Rider et al.
Pentatomoidea
stink bugs, shield bugs, jewel bugs, giant shield bugs, burrower bugs
Pentatomoidea is a superfamily of true bugs (Hemiptera: Heteroptera) comprising approximately 7,000 species across 21 families (16 extant, 5 extinct). Members are characterized by a prominent scutellum, five-segmented antennae, and tarsi with two or three segments. The group includes economically significant agricultural pests such as the brown marmorated stink bug, as well as predatory species that serve as biological control agents.
Pentodontini
rhinoceros beetles
Pentodontini is the most diverse tribe within the subfamily Dynastinae (rhinoceros beetles), containing over 100 genera distributed across multiple biogeographic regions. Most genera are restricted to a single biogeographic region. The tribe is characterized by substantial morphological diversity, with generic-level identification often relying on mouthpart morphology in females and secondary sexual characters (horns, claw modifications, antennal club length) in males.
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