124 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 12$ 



shiny-white pruinosity, somewhat wider anteriorly, extending from 

 anterior border to prescutellar depression which is similarly white- 

 pruinose ; wide band of white pruinosity along each lateral margin, 

 separated from the pruinosity of prescutellar region ; short, lustrous, 

 dark-brown to black hairs sparsely distributed over scutum, more 

 numerous on anterior half ; very narrow, yellow, scalelike hairs pres- 

 ent on prescutellar region and at the posterior angles. Humeral angles 

 velvety brown, with white pruinosity and a few yellow scalelike hairs. 

 Scutellum velvety brown, with long black hairs along the margins. 

 Postnotum same color as mesonotum, with white pruinosity, devoid 

 of hairs. Pleura dark brown to black, shiny white-pruinose ; pre-alar 

 group composed of a few yellow hairs. Stem of halter light brown, 

 the knob cream to tan. Wings, 2.2 mm. long and i.o mm. wide; rela- 

 tion of body length to wing, 1:1.1; Sc pilose along the basal half; 

 Ri spiny and pilose along the distal half, the hairs sparse and situated 

 closer to the base ; R2+3 pilose except for basal seventh ; Cu2 arcuate ; 

 discal cell absent. 



Legs: Leg i, length, 2.1 mm. ; entire leg brown, the basal half of 

 the trochanter and the midregion of the femur somewhat lighter. Leg 

 2, length, 1.9 mm. ; coxa and trochanter dark brown ; femur brown, the 

 base and apex somewhat darker ; tibia dark brown, with yellow basal 

 ring; tarsal segments 1-3 yellow to tan on their basal two-thirds, 

 darker apically ; segments 4 and 5 dark brown. Leg 3, length, 2.3 mm. ; 

 coxa and trochanter dark brown ; femur light brown on basal two- 

 thirds, dark brown on apical third ; tibia dark brown, with yellow basal 

 ring, spindle-shaped, widest about three-fourths the distance from the 

 base, at which point there is a distinct angle, the more apical region 

 again tapering ; apical region of tibia with concentration of short hairs 

 that are very close together ; apex almost pointed ; basal half of basi- 

 tarsus and of second segment yellow, the apical halves of these seg- 

 ments, as well as all of segments 3-5, dark brown ; relation of basi- 

 tarsus to second segment, 5.0 : i ; basitarsus with apical end truncate, 

 the calcipala occupying about half its width ; last tarsal segment rather 

 long; calcipala well developed, not quite reaching the pedisulcus; 

 pedisulcus well formed at middle of second segment ; claw with well- 

 developed heel and with small subbasal tooth (pi. 35, fig. 275). 



Abdomen : Tergite and pleurites of segment i dark brown, the 

 pleura with long dark hairs that reach segment 3. Segment 2 dark 

 brown, white-pruinose except for small patch at middle of posterior 

 margin ; with short black hairs. Segments 3-5 with very much reduced 

 tergal plates ; anterior and posterior margins of segments 3 and 4, and 

 anterior margin of segment 5 white-pruinose ; pleural regions with 



