Stink-bug-predator
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Astata
Astata is a cosmopolitan genus of solitary predatory wasps in the subfamily Astatinae, family Crabronidae. With 87 recognized species and subspecies worldwide, it is the largest genus in its subfamily. The genus is distinguished by distinctive wing venation patterns and pronounced sexual dimorphism in eye structure. Males possess exceptionally large compound eyes that meet dorsally at the top of the head, while females have normal, separated eyes.
Astata occidentalis
Astata occidentalis is a predatory wasp in the family Crabronidae, first described by Cresson in 1881. The species occurs in Central America and North America. Like other members of the genus Astata, it hunts stink bugs (family Pentatomidae) to provision nests for its offspring. Research indicates that female wasps are attracted to kairomones produced by stink bugs, including pheromones of Thyanta pallidovirens, suggesting a specialized predator-prey relationship.
Astata unicolor
Astata unicolor is a solitary, soil-nesting wasp in the family Crabronidae. It is sexually dimorphic: males have black abdomens and enlarged eyes that meet at the top of the head, while females have black and orange abdomens with normal, separated eyes. The species is a predator of stink bugs (Pentatomidae), with documented preference for late-instar nymphs and adults of the invasive brown marmorated stink bug (Halyomorpha halys). Females paralyze prey with a sting, transport it to underground nests, and provision cells for their larval offspring.
Bicyrtes quadrifasciatus
Four-banded Stink Bug Wasp, four-banded stink bug hunter wasp
Bicyrtes quadrifasciatus is a sand wasp native to North America, east of the Rocky Mountains. Females construct solitary burrows in sandy soil to provision with paralyzed true bugs, primarily stink bugs (Pentatomidae), as food for their larvae. The species has gained attention for its role as a native biological control agent of the invasive Brown Marmorated Stink Bug (Halyomorpha halys). Adults are nectar-feeders and can be readily observed at flowers.
Bicyrtes variegatus
sand wasp
Bicyrtes variegatus is a sand wasp species in the family Crabronidae, distributed across Central and South America with established populations in the Galápagos Islands. The species exhibits notable behavioral flexibility, having been documented in diverse vegetation zones from littoral to humid habitats and interacting with both native and introduced flora. As a member of the Bembicinae, it shares the subfamily's characteristic fossorial nesting habits and prey specialization on true bugs, though specific ecological details remain incompletely documented across its broad range.