HOUGH: PIPUNCULIDAE OF THE UNITED STATES. 83 
reous pollen, in the middle brownish cinereous. Scutellum black, 
moderately shining. Metanotum whitish pollinose. Abdomen 
wholly black and shining; first segment except at base white 
pilose; second very slightly sprinkled with cinereous pollen so that 
it is less shiny than the following segments, its sides and caudal 
margin almost wholly white pollinose; third segment with a cine¬ 
reous pollinose stripe, dilated cephalad, obsolete caudad; the sides, 
the caudo-lateral angles, and the lateral portions of the caudal 
margins of segments 3, 4, and 5 are white pollinose ; the sixth seg¬ 
ment has its lateral margins and its caudo-lateral angles white pol¬ 
linose. The tibiae are between a brown and a yellow color, seem¬ 
ing now one and now the other according to the incidence of the 
light. Femora black except the extreme bases and apices, which 
are yellow ; they are wholly pollinose except the mesal surface of 
the posterior pair, which is shining; I can see no spines or pile on 
either femur. The awl-shaped terminal piece of the ovipositor is 
straight. Wings hyaline; veins black; stigma brown ; small cross 
vein at junction of basal and middle thirds of discal cell; third 
costal segment shorter than fourth. 
Division 3. 
1. Stigma not colored. ....... 2 
2. Small cross vein at or apicad the middle of discal cell . 3 
Small cross vein at basal fourth or fifth of discal cell . 10 
Small cross vein before the middle but beyond the first third 
of discal cell . . . . ... . 22 
3. Eyes of the male in contact near the middle of front for a 
greater or less distance ...... 4 
4. Abdomen, especially the fifth segment, with short, erect black 
bristles .......... 5 
Abdomen with delicate whitish hairs or almost naked . 6 
5. Humeri yellow. Hypopygium asymmetrical; looked at from 
the left it is as long as the fifth segment, from the right it is 
shorter than the fifth; on its caudal end is an oblique oval 
depression which is usually very distinct. Legs black, grayish 
pollinose ; apices of femora, basal third of tibiae, and tarsi 
except last joint yellow; hind femora shining black on the 
mesal surface. Wholly greenish black, lightly gray pollinose, 
pollen thickest on first and fifth abdominal segments. Anten¬ 
nae black, very delicately whitish pubescent; third joint with 
a rather long drawn out white point. Wings hyaline; veins 
