Gondwanan-distribution
Guides
Acanthosomatidae
Shield Bugs
Acanthosomatidae is a family of shield bugs within Pentatomoidea comprising approximately 200 species in 55 genera across three subfamilies (Acanthosomatinae, Blaudusinae, Ditomotarsinae). The family is notable for its distinctive reproductive biology, with females exhibiting either maternal care (egg-nymph guarding) or egg smearing using secretions from Pendergrast's organs. Maternal care has evolved independently at least three times within the subfamily Acanthosomatinae and is correlated with reduction or loss of Pendergrast's organs, suggesting an evolutionary trade-off between these strategies.
Ambositrinae
Ambositrinae is a subfamily of small parasitoid wasps within the family Diapriidae, established by Lubomir Masner in 1961. The group exhibits a predominantly Gondwanan distribution, with most extant species occurring in Australia, New Guinea, New Zealand, and South America. The subfamily has been documented from Eocene amber deposits in Europe, indicating a broader historical distribution. Taxonomic revision of Australian Ambositrinae has identified multiple genera and numerous species, with wing reduction being a notable morphological feature in some lineages.
Apiocera
Flower-loving Flies
Apiocera is the sole genus in the family Apioceridae, comprising approximately 150 species of flies commonly known as flower-loving flies. The genus is divided into four subgenera, each restricted to a different continent: Apiocera (Australia), Ripidosyrma (southern Africa), Pyrocera (North America), and Anypenus (South America). Despite their common name, most species do not visit flowers. The family was historically broader, with other genera now transferred to Mydidae.
Argidae
Argid Sawflies
Argidae is a large family of sawflies (Hymenoptera: Symphyta) comprising approximately 800 species worldwide, with greatest diversity in tropical regions, particularly the Neotropics. The family is distinguished from other Symphyta by the reduction of the antenna to three flagellomeres, with the terminal segment often elongated and forked in males. Larvae are phytophagous and frequently exhibit gregarious feeding behavior; some species display maternal care of eggs and young larvae.
Belidae
Primitive Weevils, Belids, Cycad Weevils (restricted usage)
Belidae is an ancient family of weevils distinguished from true weevils (Curculionidae) by straight rather than elbowed antennae. The family exhibits a relictual Gondwanan distribution, with extant species found primarily in the Australia–New Guinea–New Zealand region, South and Central America, Southeast Asia, Pacific islands, and scattered African localities. Belidae comprises two living subfamilies: Belinae and Oxycoryninae. The family has undergone significant host-plant shifts from ancestral conifer associations to diverse angiosperm lineages, including cycads, palms, and parasitic flowering plants.
Blephariceridae
Net-winged Midges
Blephariceridae, or net-winged midges, are a family of nematoceran flies distinguished by wings with a distinctive network of fissures and folds resembling cracked glass. Adults superficially resemble crane flies but differ in wing shape, head structure, and leg posture. Larvae are specialized inhabitants of torrential streams, possessing six ventral suckers that enable attachment to rocks in flows exceeding 2 m/s. The family contains over 200 species across dozens of genera worldwide, with highest diversity in mountainous regions. Larvae are ecologically significant as diatom grazers in lotic ecosystems.
Chelipoda
Chelipoda is a genus of dance flies in the family Empididae, subfamily Hemerodromiinae. The genus exhibits profound sexual dimorphism, with males bearing exaggerated morphological characters whose structure-function relationships have been studied. A 2007 revision recognized 38 species in New Zealand alone, including 22 newly described species. Phylogenetic analysis resolves two major clades distinguished by thoracic elongation, male genital flexion, cercus-epandrium fusion, and cell cup shape.
Clavigeritae
Clavigeritae is a supertribe of minute rove beetles (Staphylinidae: Pselaphinae) comprising approximately 370 described species. These beetles are obligate myrmecophiles, living socially parasitic lives within ant colonies. The group exhibits extreme morphological specialization for this lifestyle, including body segment fusions and unique glandular structures. The 52-million-year-old fossil Protoclaviger trichodens from India represents the oldest known myrmecophilous beetle and reveals transitional features between ancestral and modern forms.
Clerinae
Clerinae is a subfamily of checkered beetles (family Cleridae) comprising numerous genera distributed across tropical and temperate regions worldwide. The subfamily includes diverse species with varied ecological associations, including flower-visiting and predatory behaviors. Taxonomic revisions have substantially expanded recognized diversity, with many genera such as Neorthrius, Xenorthrius, Erymanthus, Eunatalis, Tillicera, and Enoclerus undergoing recent systematic study. Some lineages show strong biogeographic patterns linked to Gondwanan origins and Andean vicariance events.
Cyclominae
Cyclominae is a subfamily of weevils (Curculionidae) comprising seven tribes: Amycterini, Aterpini, Cyclomini, Dichotrachelini, Hipporhinini, Listroderini, Notiomimetini, and Rhythirrinini. The subfamily exhibits a disjunct global distribution, with significant radiations in southern South America, southern Africa, Australia, and the western Mediterranean region. Phylogenetic studies indicate complex evolutionary relationships among constituent tribes, with some Palaearctic genera showing closer affinities to South American lineages than to geographically proximate relatives.
Cyphophthalmi
Mite Harvestmen
Cyphophthalmi is a suborder of harvestmen (Opiliones) comprising six families grouped into three infraorders: Boreophthalmi, Scopulophthalmi, and Sternophthalmi. Adults range from 1 to 7 mm in length with relatively short legs compared to other harvestmen. The suborder is characterized by unique morphological features including elevated cone-shaped ozophores, a spermatopositor instead of a true penis in males, and a completely open gonopore lacking a genital operculum. Many species are eyeless and inhabit leaf litter or caves. Cyphophthalmi represents one of two major lineages of harvestmen, with the other lineage (Phalangida) containing Laniatores, Dyspnoi, and Eupnoi.
Diparidae
Diparidae is a family of chalcid wasps within the superfamily Chalcidoidea. Formerly classified as a subfamily (Diparinae) of Pteromalidae, it is now recognized as a distinct family. The group exhibits pronounced sexual dimorphism and includes both winged and wingless forms. Most species are parasitoids associated with forest leaf litter habitats.
Ecnomidae
Tubecase Netspinning Caddisflies
Ecnomidae is a family of caddisflies (Trichoptera) comprising approximately 375–400 described species across 9 genera. The family exhibits a characteristic Gondwanan distribution pattern, with all genera restricted to the Southern Hemisphere except Ecnomus, which is also widespread in the Palearctic and Oriental regions. Larvae are aquatic and construct fixed silk retreats on submerged surfaces. The family's taxonomy has been historically unstable, having been classified as a subfamily of both Hydropsychidae and Psychomiidae before recognition as a monophyletic family closely related to Polycentropodidae.
Ectoedemia
Ectoedemia is a genus of minute moths in the family Nepticulidae, established by August Busck in 1907. The genus comprises four subgenera: Ectoedemia, Etainia, Fomoria, and Zimmermannia. Species are distributed across multiple continents including Europe, Asia, Africa, Australia, and the Americas. The genus is notable for its leaf-mining larval ecology, with many species exhibiting narrow host plant specificity on trees and shrubs.
Nepticulidaemicrolepidopteraleaf-minerbark-minerhost-specificityparthenogenesisE.-argyropezaFagaceaeBetulaceaeQuercusspeciationsympatric-speciationphylogenomicsddRADclonal-diversitygall-inductioncecidian-stagesedentary-dispersalHolarctic-distributionGondwanan-distributionsubgenera:-Ectoedemia,-Etainia,-Fomoria,-ZimmermanniaEupnoi
Eupnoan Harvestmen
Eupnoi is a suborder of harvestmen (order Opiliones) comprising approximately 1,700 described species across more than 200 genera. The group is divided into two superfamilies: Phalangioidea, which includes the familiar long-legged "daddy long-legs" common in northern temperate regions, and the smaller Caddoidea, characterized by prominent eyes and spiny pedipalps. Eupnoi harvestmen possess a unique secretory gland opening via an ozopore on the dorsum, which produces defensive and communicative chemicals. They exhibit complex social behaviors including multi-specific roosting aggregations and chemical-based alarm signaling.
Gasteruptiidae
Carrot Wasps
Gasteruptiidae is a family of apocritan wasps comprising approximately 500 species in two subfamilies (Gasteruptiinae and Hyptiogastrinae) and six extant genera worldwide. Members are commonly known as "carrot wasps" due to their slender, elongated bodies and frequent association with umbelliferous flowers. The family is characterized by a pronounced elongated "neck" (propleura) between the head and thorax, a petiole attached high on the propodeum, and notably swollen, club-like hind tibiae. These wasps are parasitoids or predator-inquilines of solitary bees and wasps, with females using their long ovipositors to deposit eggs in host nests.
Gondwanocrypticus pictus
Gondwanocrypticus pictus is a species of darkling beetle (family Tenebrionidae) described by Gebien in 1928. The genus name Gondwanocrypticus suggests a Gondwanan distribution pattern, though specific details about this species' biology, ecology, and distribution remain poorly documented in available literature. The species epithet 'pictus' (Latin for 'painted') likely refers to distinctive coloration or markings.
Halictophagidae
Halictophagidae is a family of twisted-wing parasites (Strepsiptera) comprising at least eight genera including Halictophagus, Coriophagus, and Dipterophagus. Members are endoparasitoids of other insects, with documented host associations including leafhoppers (Cicadellidae). The family has a cosmopolitan distribution through genus Halictophagus, while genus Coriophagus shows a Gondwanan distribution pattern with records from Africa, Australia, New Zealand, Solomon Islands, India, and Brazil.
Hepialidae
Ghost moths, Swift moths
Hepialidae, commonly known as ghost moths or swift moths, comprise approximately 700 species in 82 genera and represent the most diverse family of the infraorder Exoporia. These moths exhibit numerous ancestral characteristics, including very short antennae, absence of a functional proboscis, and homoneurous wing structure with similar forewings and hindwings. Species range dramatically in size from small moths to a record wingspan of 250 mm in Zelotypia. The family shows highest diversity in ancient landmasses, particularly Australia, South Africa, and Chile, reflecting their Gondwanan origins. Many species display pronounced sexual dimorphism, with males typically smaller but more boldly marked than females.
Labeninae
Labeninae is a subfamily of parasitoid wasps within Ichneumonidae, comprising 12 extant genera organized into four tribes: Labenini, Groteini, Poecilocryptini, and Xenothyrini. The group has a predominantly Southern Hemisphere distribution, with phylogenomic and biogeographic analyses supporting a Gondwanan origin approximately 146 million years ago. Members exhibit diverse host associations: Labenini parasitize wood-boring beetles (Buprestidae, Cerambycidae, Curculionidae), Groteini specialize on solitary bees, and Poecilocryptini may include phytophagous species based on larval morphology. The subfamily represents an ancient lineage with complex biogeographic history involving vicariance and range expansion events.
Merope
earwigfly, forcepfly
Merope is a genus of scorpionflies (Mecoptera) in the family Meropeidae, commonly known as earwigflies or forcepflies. The genus contains Merope tuber, the only living member of Meropeidae in North America. Males possess large segmented forceps-like cerci that resemble the pincers of earwigs. The family is exceptionally rare, with only three extant species described worldwide, and the immature stages remain unknown to science.
Mucrosomia
Mucrosomia is a genus of springtails (Collembola) in the family Isotomidae, subfamily Anurophorinae. It was established by Bagnall in 1949. The genus has a notably broad geographic distribution spanning multiple isolated regions including the Andes, Antarctica and Subantarctic islands, the Cape region of South Africa, the Caribbean, and central Australia. These disjunct distribution patterns suggest potential Gondwanan biogeographic affinities, though specific ecological and biological details remain poorly documented.
Neelidae
Neelidae is a family of minute springtails in the order Neelipleona, comprising at least four genera and more than 30 described species. Members average around 500 μm in length and possess globular bodies superficially resembling those of Symphypleona, with relatively long legs and a well-developed furca. Molecular phylogenetic data places Neelidae as a basal group to all other Collembola, despite earlier morphological hypotheses linking them closely to Symphypleona. The family has worldwide distribution with records from Gondwanan regions, caves, and various terrestrial habitats.
Neobisioidea
Neobisioidea is a superfamily of pseudoscorpions established by Chamberlin in 1930. It contains seven families, including Gymnobisiidae, Hyidae, Neobisiidae, Parahyidae, and Syarinidae. Members of this superfamily exhibit diverse ecological specializations, with some species restricted to moist leaf litter habitats and others adapted to subterranean cave environments. Several families show Gondwanan distribution patterns and high levels of short-range endemism.
Nothridae
Nothridae is a family of oribatid mites comprising at least 3 genera and approximately 70 described species. The family includes the genera Nothrus (semi-cosmopolitan), Novonothrus (Gondwanan distribution), and Trichonothrus (previously known only from South Africa, now recorded from Australia). Members are primarily associated with moist forest habitats, particularly cool temperate rainforests. Australian Nothridae show relict Gondwanan biogeographical affinities, with high diversity of sexual species in temperate rainforests contrasting with thelytokous parthenogenetic species in the Northern Hemisphere.
Olixon
Olixon is a genus of solitary wasps in the family Rhopalosomatidae, established by Cameron in 1887. All known species are brachypterous (short-winged) ectoparasitoids of crickets, primarily in the family Gryllidae. The genus is distributed across the African, Australian, and American continents, with a notable concentration of diversity in Australia. Species are generally considered rare in collections and infrequently observed in the field.
Oribotritiidae
Oribotritiidae is a family of ptyctimous oribatid mites in the order Oribatida. The family includes the genus Austrotritia, which has a primarily Gondwanan distribution across the Oriental, Australian, and southeastern Palaearctic Regions. The European species Austrotritia finlandica, endemic to the southwestern archipelago of Finland, represents the only known European occurrence of this genus. Records from GBIF indicate presence in Denmark, Norway, and Sweden.
Phellopsini
Phellopsini is a tribe of darkling beetles in the family Zopheridae, subfamily Zopherinae. Members of this tribe are characterized by their heavily sclerotized, often sculptured exoskeletons and compact body forms. The tribe was established by Ślipiński & Lawrence in 1999 based on phylogenetic analysis of Zopheridae. Phellopsini contains several genera distributed primarily in the Southern Hemisphere.
Piesmatidae
ash-grey leaf bugs, ash-gray leaf bugs
Piesmatidae is a small family of true bugs (Hemiptera: Heteroptera) in the superfamily Lygaeoidea, commonly known as ash-grey leaf bugs. The family contains three extant subfamilies and eleven genera, with over 40 described species. Members are small phytophagous insects, typically 2–4 mm in length, characterized by a distinctive reticulate or dimpled pattern on the head, thorax, and corium of the hemelytra. This dimpled texture represents convergent evolution with the lace bugs (Tingidae) of the infraorder Cimicomorpha. The family has a predominantly temperate Northern Hemisphere distribution, with additional occurrences in Africa, Australia, and South America.
Pilophorini
Pilophorini is a tribe of plant bugs (Miridae: Phylinae) comprising approximately 15 genera distributed across tropical and temperate regions. The group exhibits pronounced ant-mimicry (myrmecomorphy) in many species, particularly within the type genus Pilophorus. Phylogenetic analysis indicates a tropical Gondwanan origin with subsequent radiation into the temperate Northern Hemisphere. Members of this tribe show diverse feeding strategies, including herbivory on mistletoes (Loranthaceae, Santalales) and predatory behavior.
Psephenidae
Water Penny Beetles, Water Pennies
Psephenidae, commonly known as water penny beetles, is a family of aquatic beetles in the order Coleoptera. The family comprises approximately 272 species in 35 genera distributed across all continents in both tropical and temperate regions. Larvae are fully aquatic and bear a distinctive flattened, circular shape resembling a penny, from which the common name derives. Adults are typically terrestrial, short-lived, and non-feeding. The family is divided into two subfamilies: Eubriinae and Psepheninae.
Rhaphidophoridae
cave crickets, camel crickets, spider crickets, cave wētā, sand treaders, sprickets
Rhaphidophoridae is a globally distributed family of wingless orthopterans comprising over 500 described species. Commonly called cave crickets, camel crickets, or spider crickets, these insects are characterized by elongated antennae, enlarged hind legs adapted for jumping, and a humpbacked body profile. They occupy diverse habitats including caves, forests, animal burrows, and human structures. All species are flightless and nocturnal, relying heavily on tactile and chemical sensory structures for navigation in dark environments. The family includes notable subfamilies such as Ceuthophilinae in North America, Macropathinae in the Southern Hemisphere, and Aemodogryllinae in Asia.
Sciapodinae
Sciapodinae is a subfamily of long-legged flies (Dolichopodidae) distinguished by ancestral wing venation features, including a branched vein M1+2. The group exhibits high diversity in tropical and subtropical regions of the Southern Hemisphere, particularly South America, sub-Saharan Africa, the Indian subcontinent, Southeast Asia, and Australasia. Phylogeographic evidence supports a Gondwanan origin during the Early Cretaceous. The subfamily contains three tribes—Mesorhagini, Sciapodini, and Chrysosomatini—with approximately 40 genera.
Tettigoniinae
Shield-backed katydids, Shield-backed bush crickets
A subfamily of katydids (Tettigoniidae) comprising hundreds of species across approximately twelve tribes. Members are characterized by an enlarged, shield-like pronotum that covers much of the thorax. The subfamily exhibits a disjunct Gondwanan distribution pattern, with major faunas in the Americas, Australia, southern Africa, and the Palaearctic region. North American representatives include both ancient Gondwanan lineages (Nedubini) and more recently diversified northern groups.
Triops
tadpole shrimp, shield shrimp
Triops is a genus of small branchiopod crustaceans in the order Notostraca, commonly known as tadpole shrimp or shield shrimp. The genus is distinguished by having only a pair of long, thin caudal extensions on the telson, unlike the related genus Lepidurus which bears an additional central platelike process. Some species are frequently sold as aquarium pets in dried egg kits, hatching upon contact with fresh water. In agricultural settings, particularly California rice cultivation, certain species function as early-season pests that damage germinating seedlings.
Underwoodia
Underwoodia is a genus of ascomycete fungi in the family Helvellaceae, described by Charles Horton Peck in 1890 to honor mycologist Lucien Marcus Underwood. The genus contains three species with widespread distribution. Northern Hemisphere species (U. columnaris) occur in North America, while Southern Hemisphere species previously classified in Underwoodia have been reclassified to the resurrected genus Geomorium (family Geomoriaceae). Underwoodia species are ectomycorrhizal fungi associated with forest ecosystems.
Zodariidae
Ant-eating Spiders, Ant Spiders
Zodariidae, commonly known as ant-eating spiders, is a family of small to medium-sized eight-eyed spiders found worldwide in tropical to warm temperate regions. The family comprises approximately 90 genera and 1,249 species, with the highest diversity in Australia. Members are predominantly ground-dwelling, free-living predators that do not construct webs for prey capture. Many species exhibit specialized ant-eating habits and aggressive mimicry, disguising themselves as ants to hunt their primary prey. The family has relatively few species in North America compared to other regions.
Zygentoma
silverfishes, fishmoths, firebrats
Zygentoma is an order of wingless insects comprising approximately 550 described species, including silverfishes and firebrats. These insects represent one of the most ancient living lineages of insects, having diverged before the evolution of winged insects in the Carboniferous period. They are characterized by three long caudal filaments and ametabolous development with continued molting throughout life. Many species are associated with human dwellings where they feed on starchy materials, while others inhabit caves, leaf litter, or live as inquilines in ant and termite nests.