Extracted from Western Bees obtained by the American Museum Expeditions by Cockerell (1921).
COLORADO: 19, along the South Fork of the Rio Grande at about 370 36' N.,
1060 43' W., about 5800 ft. alt., among Pinus scopuWrum, Pseudotsuga mUCTonata,
Picea pungens, etc., June 17, 1919.
9 .-Length about 9 mm., red, similar to N. depressicauda Cockerell (to which it
runs in the table in Entom. Xews, 1908, p. 323), but with the flattened caudal area
much larger (describing about half a circle), with a minutely granular or tessellate
bare surface, and three longitudinal keels, the keels and the margin briefly and microscopically
pubescent. It also differs by the darker red of head and thorax; the longer
third antennal joint (still, however, not quite so long as fourth); scutellum more
strongly bigibbous. The only yellow markings on abdomen are large spots on second
segment, and very small ones on third
|
