478 
Psyche 
[Vol. 92 
long as fore wing), and stout ovipositor tip (0.30 or more as high at 
notch as long from notch to apex). C. leucetrum differs from C. 
uspallatae in its longer malar space (1.0 vs. 0. 8-0.9 as long as basal 
width of mandible), longer notauli (traceable 0.8 length of mesoscu- 
tum vs. 0.3), more coarsely sculptured mesoscutum, extremely 
coarse mesopleural wrinkling, shorter radial cell (3.7 vs. 4. 2-4. 3 as 
long as wide), longer propodeal spiracle (2.3 as long as wide vs. 
1.4- 1.7), absence of white on the flagellum, partly red gaster, and 
dull red (vs. mostly pale orange) legs. 
field notes. The unique holotype was swept from Baccharis 
growing on sandy soil within the flood plain of the lower Rimac 
River. 
specific name. Leucetrum, used here as a noun in apposition, is 
derived and latinized from the Greek adjective leukos, “white”, and 
the Greek noun etron, “abdomen”. 
4. Cosmiocryptus violaceipennis Cameron 
(Fig. 6, 7) 
Cosmiocryptus violaceipennis Cameron, 1902. Trans. Amer. Ent. Soc. 28: 372. Holo- 
type 9: Peru, Callao (London). 
I redescribed C. violaceipennis (Porter 1967: 218-20) on the basis 
of 3 females and 1 male collected at Callao (a female cotype), Matu- 
cana, and Canete in the central Coastal Desert and adjacent west 
Andean slopes. Subsequent collection of 5 more females and 6 new 
males, obtained not only close to Lima (Rimac Valley, Santa Eula- 
lia Valley) but also in the northern coastal region near Trujillo 
(Samne), permits further redescription of C. violaceipennis. 
female. Color: sometimes blackish on as much as apical 0.5 of 
hind femur. 
Length of fore wing: 7.9-12.1 mm. First flagellomere: 5. 5-6.0 as 
long as deep at apex. Mesopleuron: swollen area along prepectal 
carina opposite speculum always conspicuous but invaded to a vari- 
able extent by punctures and wrinkles. Wing venation: ramellus 
strong and elongate; radial cell 3. 8-4. 3 as long as wide; 2nd abscissa 
of radius 0.6-0. 7 as long as 1st intercubitus. First gastric tergite: 
postpetiole 1. 5-2.0 as wide apically as long from spiracle to apex. 
Ovipositor: sheathed portion 0.40-0.48 as long as fore wing; tip 
0.21-0.28 as high at notch as long from notch to apex. 
