1977] 
Porter — Mesostenines 
65 
well as sometimes with a little brownish staining above subalarum, 
a large black area above speculum, and more or less black on 
dorsal 1/2 of prepectus; dorsal metapleur'on and groove at base of 
propodeum yellow and sometimes with a little brownish staining 
on dorsal metapleuron anteriorly at about upper 1/3; lower meta- 
pleuron pale yellow testaceous; propodeum pale fulvous with black 
basad of basal trans-carina in most of region between spiracle and 
area-basalis, which is dull testaceous or yellow grading into black 
apically and laterally; first gastric segment yellow with black above 
on petiole and basal 2/3 of postpetiole, except for a broad median 
yellow stripe on basal 4/5 of petiole; second gastric tergite black 
with a broad yellow apical band and pale fulvous on thyridia; suc- 
ceeding tergites similar to second except that the apical yellow 
bands reach farther forward laterally; fore leg with coxa, tro- 
chanter, and trochantellus yellow with a little brown staining above 
on trochanter, femur and tibia pale testaceous, and tarsus testa- 
ceous grading into dusky or black on last three segments; mid leg 
similar to fore leg except that the coxa, trochanter, and trochantel- 
lus have a faint testaceous suffusion, the tibia sometimes becomes 
dusky above on apical 1/4, and the tarsus varies from mostly 
blackish to dusky on segments 2-5 and somewhat paler on 1; hind 
coxa, trochanter, trochantellus and femur rather intense shining 
testaceous with a brown streak ventro-anteriorly on base of coxa 
(absent in paratype) and some brown staining above toward base 
of trochanter, on apex of trochantellus, and on base of femur; hind 
tibia yellowish testaceous with a little dusky on base and blackish 
on apical 1/3 or a little more, and hind tarsus white with black on 
basal 1/8 of first segment, at least laterally, and on apical 1/4 of 
last segment; wings hyaline with stigma dull brownish white. 
Length of fore wing: 7. 1-7.5 mm. Flagellum: first segment 3.9- 
4.3 as long as deep at apex; tyloids very weak, sometimes faintly 
detectable as longitudinal discontinuities on segments 10-16 which 
extend about 0.5-0. 8 the length of each segment. Malar space: 
0.80-0.85 as long as basal width of mandible. Clypeus: weakly 
convex in profile. Temple: 0.60 as long as eye at upper 1/3. Pro- 
notum: scrobe smooth and polished and without wrinkles except 
for the short epomia. Mesoscutum: smooth and polished with 
abundant tiny punctures separated by 4-5X their diameters. Meso- 
pleuron: smooth and polished with numerous well spaced, tiny 
punctures and with a little longitudinal wrinkling above speculum. 
