1986] Porter — Sonoran genus Compsocryptus 23 
maticum) and on most of postocciput; mesosoma ferruginous with 
black markings usually better developed than in female and includ- 
ing areas on propleuron anteriorly, pronotal collar, spot on epomia 
(sometimes contiguous with black on collar), broad band on hind 
margin of pronotum, prescutellar groove, much of meso and 
metanotal axillary troughs, groove at base of propodeum, all of 
prepectus, mesosternal sulcus, hind face of mesosternum, broad 
band on hind margin of mesopleuron — prolonged dorsad along 
upper mesopleural margin to subalarum, broadly on all but dorsal 
margin of lower metapleuron, and irregularly on hind margin of 
propodeum; gaster dull to bright ferruginous with a little black at 
base of 1st tergite and with succeeding tergites sometimes only with 
irregular dusky staining and sometimes with well defined black 
areas toward base of tergites 2 and 3; fore and mid tibiae and tarsi 
more yellowish than in female; mid femur with some blackish stain- 
ing dorsad and apicad; hind tibia black with basal 0.15 contrastingly 
pale yellow; hind tarsus blackish with light yellow at least near base 
of 1st segment and sometimes almost throughout on both segments 
1 and 2. 
Length of fore wing: 8. 5-9. 6 mm. Flagellum: linear, largely per- 
current tyloids present on segments 1 1 or 12 to 19 or 20; 1st segment 
2. 5-2. 7 as long as deep. Malar space: 0.77-0.90 as long as basal 
width of mandible. Mesoscutum: shining with abundant, moder- 
ately small, sharp punctures that are separated by 1. 0-2.0 their 
diameters and which emit dense, erect, moderately long setae. 
Mesopleuron: more shining than in female, with medium sized, 
sharp, dense, subadjacent to reticulately confluent punctures and 
some longitudinally biased reticulation. Hind femur: 6. 3-7. 4 as long 
as deep. Hind tibia: with enlarged setae more abundant and con- 
spicuous than in female. Propodeum: rather elongately convex in 
profile; apical face not discrete from basal; apical trans-carina 
weaker than in female, forming low and subcrescentic cristae or 
sometimes with cristae obsolete. First gastric tergite: ventro-lateral 
carina obsolete on petiole but sometimes becoming sharp toward 
apex of postpetiole; dorso-lateral and dorsal carinae in great part 
obsolete; surface of postpetiole smooth and shining with abundant 
but well separated tiny punctures that emit long and uniformly 
overlapping setae. 
