''Astata unicolor'' is a species of wasp in the family

Astatidae Astatidae is a cosmopolitan family of solitary wasps, peculiar for their males having very large compound eyes that broadly meet at the top of the head. The largest genus in this family is ''Astata'', with about half of more than 160 species in ...

. It is found in Central America and

North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...

. The species is

sexually dimorphic Sexual dimorphism is the condition where sexes of the same species exhibit different Morphology (biology), morphological characteristics, including characteristics not directly involved in reproduction. The condition occurs in most dioecy, di ...

, with males have black abdomens, while females are black and orange. It is a predator of

Pentatomidae Pentatomidae is a family of insects belonging to the order Hemiptera, generally called shield bugs or stink bugs. Pentatomidae is the largest family in the superfamily Pentatomoidea, and contains around 900 genera and over 4700 species.Robert G ...

, including ''

Halyomorpha halys The brown marmorated stink bug (''Halyomorpha halys'') is an insect in the family Pentatomidae, native to China, Japan, Korea, and other Asian regions. In September 1998, it was collected in Allentown, Pennsylvania, where it is believed to have ...

'', which is invasive to North America.

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Further reading