A Review of the Hilaris Species Group of Crabro (Hymenoptera: Sphecidae)
Abstract
The hilaris species group of Crabro is characterized and a key to males and females of the 8 component species is presented with illustrations. Two new species from the eastern United States are described, C. arcadiensis from Florida and C. atlanticus from New Jersey, North Carolina, and Georgia. The true female of C. cingulatus (Packard) is recognized for the first time. C. rufibasis (Banks), a Floridian species regarded by some workers as a color form of C. hilaris Smith, is retained as a good species based on a review of the recent geological history of Florida, the present distributions of the 2 species, the apparent lack of secondary intergradation, and clinal color variation in other crabronine wasps. Secondary intergradation in the crabronine Ectemnius 10-maculatus (Say) in Florida is described as an example. Distributions by county, including months of capture, are provided for the 8 species.Downloads
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