1985] 
Porter — Cosmicryptus 
All 
2.3 as long as wide; basal trans-carina high but irregular on mid 
section, obsolete laterad; apical trans-carina obsolete; cristae 
medium sized, broad, short but well projecting, truncately ligulate; 
longitudinal carinae obsolete; surface with reticulate wrinkling that 
is strong to coarse on apical face and on much of basal face between 
trans-carinae (particularly on a broad arc in position of basal trans- 
carina) and which becomes contrastingly weaker only basad of basal 
trans-carina. 1st gastric tergite: postpetiole 1.7 as wide apic- 
ally as long from spiracle to apex; ventro-lateral carinae strong and 
sharp throughout; dorso-lateral carinae fine but sharp throughout; 
dorsal carinae represented by the beveled margins of a broad and 
low median elevation that becomes detectable toward apex of peti- 
ole and continues onto much of postpetiole; surface of postpetiole 
shining, smooth and polished on about apical 0.3 but otherwise with 
delicate micro-reticulation and with a few tiny punctures that emit 
short, sparse, inconspicuous setae. 2nd gastric tergite: nearly 
smooth and conspicuously shining, with delicate micro-reticulation 
that practically fades out toward apex, as well as with scattered tiny 
punctures that emit short and very sparse setae. Ovipositor: unusu- 
ally robust; sheathed portion 0.53 as long as fore wing; nodus low 
but distinct, with a tiny notch; dorsal valve with a slightly concave 
taper from notch for about 0.7 the distance to apex and more con- 
vexly tapered on apical 0.3; ventral valve with strong, oblique ridges 
on tip; tip 0.30 as high at notch as long from notch to apex. 
male. Unknown. 
type material. Holotype $: PERU, Lima Province, Cupiche, 
10 km E. Chosica, 25-VI-2-VII-1974, C. Porter, L. Stange. Holo- 
type in Florida State Collection of Arthropods. 
relationships. Cosmiocryptus leucetrum belongs to the Albo- 
marginatus group within its genus as defined by Porter (1967: 
150-3). In this subgroup, it seems most closely allied to C. uspalla- 
tae Porter, 2 which occurs in the deserts of western Argentina from 
Mendoza north to Salta Province (Porter 1967: 167, 1975: 211). 
Features shared by C. leucetrum and C. uspallatae include their 
rather pyramidal clypeus, strongly receding temples, very long 1st 
flagellomere (at least 6.0 as long as deep at apex), only finely reticu- 
late 2nd gastric tergite, relatively long ovipositor (at least 0.50 as 
2 New combination. 
