A New Bee of the Genus Senecio Andrena Visiting Senecio

T. D. A. Cockerell
1928 Psyche: A Journal of Entomology  
In a large genus like Andrena, the discovery of a new species excites little interest, but the one now recorded has rather special claims. At Winfrith, Dorset, in England, on April 20, 1921, my wife and I had the pleasure of collecting both sexes of the beautiful Andrena (Trachandrena) albicans Mfiller. When I put the specimens away in the Trachandrena box, I remarked that whereas the North American fauna was rich in this group, there was nothing quite so beautiful as the English cousin, with
more » ... lish cousin, with bright red hair on the thorax above, white hair on the pleura, and bandless abdomen. However, on May 17, 1927, Mr. Chas. Wagner, one of my students, captured an Andrena on Senecio flowers at White Rocks, near Boulder, Colorado. When he brought it in, I said., "Where have you been? You must have been to England!" Superficially, it was just like A. albicans, though closer inspection showed various differences, thus the pleura is black haired, and the hair at end of abdomen is black, not red. It may be described thus: Andrena seneciophila n. sp. Female. Length nearly 11 mm.; a typicM member of the subgenus Trachandrena; black, including antennm and legs, tegulm brown; head ordinary, face broad; process of labrum broadly truncate; malar space linear; clypeus coarsely and quite closely punctured, the punctures tending to run in longitudinal lines, apical third with a median smooth line; facial fovem seen from above seal brown, running close to eyes separated by a shining band, extending downward to level of top of clypeus; third antennal joint not quite as long as next two together; hair of head thin, mostly black, but red on occiput, and slightly reddish in region about antennae; mesothorax and scu-
doi:10.1155/1928/26174 fatcat:btzf5fiu6vcmjpvqcav773zzyu