Eucerceris flavocincta
Cresson, 1865
Eucerceris flavocincta is a of solitary in the Crabronidae, Philanthinae. Like other members of the Eucerceris, it is a weevil wasp that hunts weevils (Curculionidae) as prey for its larvae. The species was described by Cresson in 1865 and is found in North America, with records from Canada and the United States.
Pronunciation
How to pronounce Eucerceris flavocincta: /juːsɜrˈsɛrɪs ˌfleɪvoʊˈsɪŋktə/
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Identification
Members of Eucerceris can be distinguished from the closely related Cerceris by structural features of the and petiole, though specific diagnostic characters for E. flavocincta require examination of and detailed taxonomic keys. The genus is characterized by a robust body form typical of weevil wasps, with a constricted waist and relatively short, strong legs adapted for grappling with prey.
Distribution
North America; recorded from Canada (Alberta) and the United States.
Diet
are known to visit flowers for nectar. Larvae are provisioned with weevils ( Curculionidae), as is characteristic of the Eucerceris.
Life Cycle
As with other Crabronidae, females construct nests in soil, provision nest with paralyzed weevil prey, and lay on the prey. Larvae develop by consuming the provided weevils, then pupate and emerge as .
Ecological Role
As a of weevils, may contribute to regulation of weevil . may function as when visiting flowers for nectar.
Similar Taxa
- CercerisClosely related of weevil wasps; distinguished from Eucerceris by thoracic and petiole requiring expert examination.
- PhilanthusAnother in Philanthinae, but beewolves prey on bees rather than weevils and have different body proportions.
More Details
Taxonomic history
The Eucerceris was revised by George R. Ferguson, who continued the work begun by Herm Scullen. Ferguson was a in the of Cerceris and Eucerceris.