270 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 12$ 



pruinose. Stem of halter dark brown, the knob tan. Wings, 3.4 mm. 

 long and 1.5 mm. wide; relation of body length to wing, 1:1.1; Sc 

 pilose along basal two-thirds; Ri pilose and spiny along distal two- 

 thirds ; R2+3 pilose except for very small basal region ; Ciu arcuate ; 

 discal cell absent. 



Legs: Leg i, length, 3.1 mm.; coxa, trochanter, and femur light 

 brown ; tibia light brown on basal three-fourths, black on apical fourth ; 

 tarsus black. Leg 2, length, 2.8 mm. ; coxa black ; trochanter light 

 brown ; femur light brown with very small apical black ring ; tibia as 

 on leg I ; basal half of basitarsus and of second segment light brown, 

 their apical halves, as well as all of tarsal segments 3-5, black. Leg 4, 

 length, 3.5 mm. ; coxa dark brown ; trochanter light brown ; femur 

 and tibia light brown on their basal three-fourths, black apically; 

 basitarsus and second segment light brown on basal two-thirds, black 

 apically; tarsal segments 3-5 black; relation of basitarsus to second 

 segment, 5.4: i ; calcipala well developed, almost reaching pedisulcus; 

 pedisulcus well developed on basal third of second segment ; claw with 

 subbasal tooth (pi. 35, fig. 257). 



Abdomen : Tergum of segment i black, with short black hairs ; 

 pleurites black with long black hairs that reach segment 3. Segment 



2 black, the anterior half white-pruinose, with short black hairs. Other 

 segments black, the anterior half of pleura on segments 7 and 8 brown ; 

 pleura with dark hairs, longest on last segment. Sternites tan. 



Genitalia: Cercus (pi. 34, fig. 232) irregularly quadrangular, its 

 height twice the length (width). Anal lobe (pi. 34, fig. 232) much 

 higher than long (wide), ventral extremity narrowed, extending some- 

 what around the cercus. Genital rod (pi. 34, fig. 234) with well- 

 expanded basal dilatation, somewhat triangular in shape; arms of 

 genital fork branching rather sharply, their apical expansions tri- 

 angular in shape, all angles blunt, only the inner margin somewhat 

 sclerotized, the rest hyaline. Ovipositor (pi. 34, fig. 233) roughly 

 triangular in shape, the apex well rounded, length somewhat greater 

 than the base, with numerous minute spicules. 



Pupa (pi. 38, fig. 314, and pi, 39, fig. 354). — Granulosity on entire 

 thorax ; 4 simple trichomes on either side of midline. Dorsal surface 

 of abdominal segments : No granulosity ; spines on segments 2-4 are 

 anteriorly directed, those on segments 6-9 are posteriorly directed; 

 segment 2 with 8 simple spines in a transverse row across the middle 

 of the segment, the row divided into two by a median space ; anterior 

 to the outermost spine on either end of the row are 2 hairs ; segments 



3 and 4 with 8 simple spines in a transverse row across the segment, 

 three-fourths the distance from the anterior margin, the row being 



