Stylopization
Guides
Halictophagus
Leafhopper Twistwing Parasites
Halictophagus is a genus of twisted-wing parasites (Strepsiptera) in the family Halictophagidae. These insects are endoparasitoids of leafhoppers and related Hemiptera, primarily in the families Cicadellidae and Cercopidae. The genus exhibits extreme sexual dimorphism: free-living males with reduced wings and branched antennae, and neotenic females that remain within the host. Multiple species have been described worldwide, with documented hosts including mango leafhoppers (Idioscopus spp., Bakera nigrobilineata) and other planthoppers.
Polistes dominula
European Paper Wasp
Polistes dominula is a highly successful invasive social wasp native to Eurasia that has established populations across North America, South America, New Zealand, South Africa, and other regions. First detected in North America near Boston in 1978, it has become one of the most abundant wasps on the continent. The species builds small, exposed paper nests in protected locations and preys primarily on live insects, particularly caterpillars. Unlike yellowjackets, it does not scavenge for meat or sugar. Its rapid spread has been attributed to ecological flexibility, superior competitive ability, and tolerance of human-altered environments.
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Twisted-wing Insects, Twisted-wing Parasites, Stylops
Strepsiptera is an order of obligate endoparasitic insects comprising approximately 600 described species across 11 extant families. The group exhibits extreme sexual dimorphism: males are free-living, short-lived adults with reduced forewings modified into halteres and large fan-shaped hindwings, while females are neotenic, larviform, and remain permanently within their insect hosts. All strepsipterans are parasites of other insects, with documented hosts spanning seven orders including Hymenoptera, Hemiptera, Orthoptera, Blattodea, Mantodea, Zygentoma, and Diptera. The order is believed to be most closely related to Coleoptera, forming the clade Coleopterida.
Stylopidae
Stylopidae is a family of obligate parasitic insects in the order Strepsiptera, comprising approximately 15 genera and over 330 described species. All members are endoparasites of bees (Hymenoptera), with infected hosts referred to as "stylopized." Females are neotenic, remaining within the host body throughout their adult life, while males are free-living with reduced morphology. The family exhibits extreme sexual dimorphism and a unique reproductive strategy involving traumatic insemination via a paragenital organ.