206 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I25 



Thorax : Mesonotum light reddish brown, with 3 poorly defined 

 white-pruinose longitudinal stripes extending from anterior margin 

 to prescutellar region, one on the midline and one on either side of the 

 midline ; long, yellow, scalelike hairs, never in packets, covering all 

 of mesonotum, longer in prescutellar region ; short black hairs over 

 entire mesonotum, longer in prescutellar region. Humeral angles 

 white-pruinose, anterior part with black hairs. Scutellum brown, with 

 yellow scalelike hairs and long black hairs. Postnotum brown, white- 

 pruinose, devoid of hairs. Pleura evenly white-pruinose. Stem of 

 halter brown, the knob almost white, cup-shaped. Wings, 3.4 mm. 

 long and 1.4 mm. wide; relation of length of body to wing, 1:1.1; 

 Sc pilose along basal half, usually with a single apical hair ; Ri pilose 

 and with spines on apical three-fourths ; R2+3 pilose except for very 

 short basal section ; Cu^ arcuate ; discal cell absent. 



Legs: Leg i, length, 3.6 mm.; coxa, trochanter, and femur tan; 

 tibia with basal fourth light brown, middle half yellow, and apical 

 fourth dark brown ; tarsus black. Leg 2, length, 3.0 mm. ; coxa brown ; 

 trochanter yellow ; femur light brown with apical dark ring ; tibia with 

 color bands from its base to apex that are tan, dark brown, tan, and 

 dark brown ; basal two-thirds of basitarsus and basal fourth of second 

 tarsal segment light brown, the remainder of these segments, as well as 

 all of segments 3-5, dark brown. Leg 3, length, 3.7 mm. ; coxa brown ; 

 trochanter yellow ; femur and tibia yellow with dark apical ring ; basal 

 two-thirds of basitarsus and basal third of second segment yellow, the 

 remainder of these segments, as well as all of tarsal segments 3-5, 

 dark brown ; relation of basitarsus to second tarsal segment, 4:1; 

 calcipala well developed reaching pedisulcus ; pedisulcus well devel- 

 oped on basal third of second segment, cutting through about two- 

 thirds the segment ; claw strong, with well-developed secondary sub- 

 basal spur (pi. 35, fig. 244). 



Abdomen : Tergite of segment i light brown with transverse dark 

 band ; pleurites black, with long tan hairs reaching third segment. 

 Segment 2 light brown, with dark brown posterior margin ; pleurites 

 the same. Segments 3, 4, and 5 blue black ; other segments reddish 

 brown ; pleura of all segments dark brown. Sternites yellow, that of 

 the last segment darker with white pruinosity and some long tan hairs. 



Genitalia: Height of cercus (pi. 32, fig. 190) twice its length 

 (width), the posterior angles rounded, its anterior ventral angle rather 

 well pointed ; clothed with stout long spines and with numerous spic- 

 ules. Anal lobe (pi. 32, fig. 190) extending well beneath the cercus, 

 with a posteriorly directed prolongation just beneath the cercus; in- 

 vestiture similar to that of cercus. Genital rod (pi. 32, fig. 192) with 



