Flightless-females
Guides
Amiseginae
Amiseginae is a subfamily of cuckoo wasps (Chrysididae) containing over 30 genera and approximately 150 described species. These wasps are obligate parasitoids of stick insect eggs (Phasmatodea), a highly specialized ecological relationship that has persisted since at least the mid-Cretaceous. Females of some genera are flightless and exhibit ant-like morphology. The subfamily has a global distribution.
Bistonini
Bistonini is a tribe of geometer moths within the subfamily Ennominae. Members are characterized by relatively large size and hairy bodies compared to other geometrids, with some species resembling tiger moths (Arctiidae) in appearance. The tribe occupies a basal position within the broader Boarmiini group and retains more ancestral morphological traits. Taxonomic boundaries remain fluid, with some treatments merging Bistonini into an expanded Boarmiini or including the Erannini.
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.
Gynaephora
Arctic woolly bear moths, grassland caterpillars (Qinghai-Tibetan Plateau species)
A genus of tussock moths (Lymantriinae: Erebidae) distributed across the Holarctic in alpine, Arctic, and Subarctic regions. Best known for exceptionally slow larval development, with some species requiring multiple years to complete their life cycle. Females are flightless or nearly so, while males are strong fliers that actively search for mates. The genus includes both Arctic species (e.g., G. groenlandica, G. rossii) and high-altitude Asian species (e.g., G. alpherakii, G. menyuanensis) that are significant pests of alpine meadows on the Qinghai-Tibetan Plateau.
Pleocoma
rain beetles
Pleocoma is the sole extant genus of Pleocomidae, a family endemic to the Pacific states of North America. These beetles are notable for their extreme subterranean lifestyle, with adults emerging only during fall and winter rains to mate. The genus name derives from Greek words for 'abundant hair,' referring to the dense ventral hair covering. Adults are non-feeding, while larvae are root-feeders with exceptionally long development periods of up to 13 years.
Scarabaeoidearain-beetlessubterraneannon-feeding-adultslong-lived-larvaepheromone-mediated-matingendemicNearcticrelictual-distributionCretaceous-originpest-of-Christmas-treeslamellate-antennaeflightless-femalesrain-triggered-emergenceCalifornia-faunaOregon-faunaWashington-faunaroot-feeding-larvaeextreme-seasonalitylight-attracted-malesPolyphylla aeolus
Kelso Dunes June Beetle
Polyphylla aeolus is a sand dune specialist scarab beetle endemic to California's Kelso Dunes in the Mojave Desert. Described by La Rue in 1998, this species belongs to a genus noted for large-bodied beetles with males possessing greatly enlarged, fan-like antennae used to detect female sex pheromones. Like other Polyphylla species restricted to sand habitats, females are likely flightless and rarely encountered. The species epithet references Aeolus, the Roman king of the winds, perhaps alluding to the wind-dispersed nature of related taxa or the windy dune environment.
Pyraloidea
pyraloid moths, snout moths, Pyralid and Crambid Snout Moths
Pyraloidea is a superfamily of small moths containing approximately 16,000 described species worldwide, with many more likely undescribed. Historically treated as part of the paraphyletic Microlepidoptera, the group now comprises two monophyletic families: Pyralidae (snout moths) and Crambidae (grass moths). The superfamily exhibits the most diverse life history adaptations among all Lepidoptera, with larvae occupying roles as leaf rollers, borers, root feeders, seed feeders, leaf miners, and aquatic specialists.