1985] 
Porter — Cosmiocryptus 
475 
0.8 the length of mesoscutum. Wing venation: ramellus often short 
but distinct. Propodeum: cristae often very strongly projecting 
cuneate to ligulate. Ovipositor: notch sometimes obsolete; tip 
0.14-0.17 as high at notch as long from notch to apex. 
new specimens examined. 4$: PERU, Lima Province, Matu- 
cana, 2389 m, 28-30-VI-1974, C. Porter, L. Stange. 
variation. Although its range extends from the central Andes 
at Cuzco and Urubamba to the west Andean slopes near Lima, C. 
huascar shows little variation in the characters studied and offers no 
phaenotypically aberrant local populations. These facts and its abil- 
ity to live at altitudes of up to 3500 m suggest that this species is a 
recent (i.e. post-Pleistocene) arrival on the upper fringes of the 
Coastal Desert. 
field notes. Specimens of C. huascar collected at Matucana 
were found near the Rimac River, as they flew at low altitude over 
grassy areas or visited Baccharis soaked with homopteran honeydew. 
3. Cosmiocryptus leucetrum Porter, new species 
(Fig. 5) 
female. Color: antenna shining reddish brown, with dusky 
staining that becomes more prominent apicad; head and mesosoma 
black with reddish brown on much of mandible, on large clypeal 
blotch, and on much of scutellum, as well as with a narrow white 
line on much of frontal orbit and a broader white line that extends 
along rear of vertical orbit and almost all of hind orbit; 1st gastric 
tergite dark red with blackish near base and again faintly on apical 
margin; 2nd tergite dark red with inconspicuous blackish staining; 
3rd tergite white, except becoming pale brown laterad, and black on 
basal 0.3; exposed portion of tergites 4-7 white with lateral faint 
brown suffusion; and tergite 8 black with a little white dorso- 
basally; legs mostly shining dull red with tibiae and tarsi duller and 
slightly dusky; wings medium blackish with subdued metallic 
reflections. 
Length of fore wing: 11.3 mm. First flagellomere: 6.3 as long as 
deep at apex. Clypeus: strongly and a little asymmetrically blunt- 
pyramidal in profile; apical margin gently but definitely convex. 
Malar space: 1.0 as long as basal width of mandible. Temple: 0.5 as 
long as eye in dorsal view; receding and only slightly rounded off. 
Cephalic carinae: sharp and low, occipital carina joining the only 
