90 PSYCHE [August 
being longer and the middle ones much closer together. Its nearest ally is perhaps 
montana Aaron, but it differs from that species in the more coarsely sculptured facial 
basin, the much broader malar space, and the apical teeth are not so strongly curved. 
The teeth are much like those of propria Aaron, but the facial basin is not striated, 
and the pronotum is not as long as the head. 
Chrysis (‘Tetrachrysis) decepta n. sp. 
Female: length 6.5 mm. Clypeus transverse; malar space almost as long as 
the length of the third antennal joint; facial basin as coarsely sculptured as the rest 
of the head except in the middle where it is shining; facial carina wavy and not very 
strong; the orbital carina not well defined; the third antennal joint almost as long 
as the length of joints four plus five. Pronotum almost as long as the head; no 
distinct furrow on the mesopleuree; parapsidial furrows parallel; the upper of the 
U-shaped furrow of the metathorax finely transversely striated, the lower part hidden 
by the abdomen; hind basitarsus a little longer than the length of joints 2, 3, 4; 
radial cell completely closed at the apex. Head and tho ax very closely punctured. 
Abdomen a little longer than the head and thorax; the punctures more separated 
than those on the thorax, the spaces between them smooth and shining; the third 
segment more closely punctured. ‘The lower lateral margin of the third segment 
bisinuate, more strongly so about the middle and gently so just before the apical 
teeth; above the third segment is depressed about the middle. ‘The lateral teeth 
not so strongly curved downward as middle ones; the teeth sharp, triangular; the 
emargination between the middle ones deeper and broader than the emargination 
between the middle and lateral ones; all the emarginations evenly semicircular. 
The apical furrow rather deep, with ten deep pits. Color dark blue with a few green 
reflections; antenne beyond the third joint and the tarsi black. ‘The entire insect 
with short gray hair. Wings hyaline, iridescent; venation black. 
Type locality: Boulder, Colc., June 13 (G. M. Hite). 
This species was determined for me as montana Aaron by M. R. du Buysson, 
but it does not agree with Aarons account of this species, and may be separated 
from it by the distinct malar space (the malar space of montana is very narrow, 
almost wanting); the middle teeth are much farther apart and the emargination 
between them is semicircular, not subtriangular. It is much like frey-gessneri 
Gribodo, but the apical pits are distinct and the facial basin is not striated or 
smooth. 
