484 
Psyche 
[Vol. 92 
abundant tiny, superficial punctures which emit rather long setae 
that mostly equal or surpass the length of their interspaces. 
new specimens examined. 14$ and 50(5: PERU, Lima Pro- 
vince, Matucana, 2389 m, 15-VI-1979, C. Porter, 27-30-VI-1976, C. 
Porter, C. Calmbacher, 28-30-VI-1974, C. Porter, L. Stange, 4-5- 
VII- 1 976, C. Porter, C. Calmbacher. 
relationships. Females of C. diplatys easily may be distin- 
guished from all sympatric congeners by their conspicuously flat- 
tened and otherwise strangely modified ovipositor tip (Fig. 10). The 
males much resemble those of C. violaceipennis but have the mesos- 
cutum more shining and more sparsely punctate and show a differ- 
ent tyloidal conformation. 
field notes. I have repeatedly found this species common at 
Matucana toward the upper end of the Rimac Valley in seasonally 
humid west Andean Prepuna. Most specimens were netted from 
Baccharis along the main river, its tributaries, and irrigation ditches. 
They seemed attracted by the homopteran honeydew covering Bac- 
charis foliage. Also they may have been looking for hosts among the 
larger lepidopterous cocoons (Psychidae, Saturniidae, etc.) sus- 
pended from the Baccharis. 
This species is known only from Mantucana. However, there are 
many entomologically unexplored river valleys along the Peruvian 
coast and C. diplatys eventually should appear in some of these. 
6. Cosmiocryptus aricae Porter, new species 
(Fig. 11,12). 
This Cosmiocryptus appears to be a southern vicariant of the 
central and north Peruvian C. violaceipennis (Cameron). It may be 
distinguished as follows from its northern relative. 
female. Color: similar to T. violaceipennis (black antenna with 
white band; mostly black head and mesosoma; blackish wings; red 
gaster) except for the presence of a dull white area above the base of 
each mandible interiorly. 
Length of fore wing: 6.0 mm. First flagellomere: 5.0 as long as 
deep at apex. Fore tibia: stout and definitely inflated. Mesopleuron: 
speculum shining but punctured and wrinkled; surface otherwise 
strongly and irregularly (but not grossly) wrinkled throughout, 
lacking a polished and swollen area above along prepectal carina 
facing speculum. Wing venation: radial cell 4.5 as long as wide. 
