114 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 125 



longer and single ; short, fine, black hairs also over entire mesonotum. 

 Humeral angles black, with yellow scalelike hairs. Scutellum black 

 with long black hairs and with numerous golden-yellow scalelike hairs 

 that almost encrust the lateral areas. Postnotum velvety dark brown, 

 with white pruinosity, devoid of hairs. Pleura black, with bluish-white 

 pruinosity. Stem of halter brown, the knob pale yellow. Wings, 1.9 

 mm. long and 0.85 mm. wide ; relation of body length to wing, 1:1; 

 Sc pilose along basal fifth ; Ri spiny along distal half, with a few hairs 

 intermixed; R2+3 pilose except for very small basal section; Cua 

 arcuate ; discal cell absent. 



Legs: Leg i, length, 1.7 mm.; entire leg light brown except the 

 apical two-thirds of basitarsus, and segments 2-5, which are dark. 

 Leg 2, length, 1.5 mm. ; entire leg light brown except the coxa which 

 is dark brown. Leg 3, length, 1.9 mm. ; coxa dark brown ; trochanter 

 light brown ; femur dark brown except for small, light-brown basal 

 ring; basal third of tibia light brown, the apical two-thirds dark 

 brown; tarsus light brown; relation of basitarsus to second tarsal 

 segment, 5.1 : i ; calcipala well developed, just reaching the pedisulcus ; 

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

 subbasal tooth (pi. 35, fig. 274). 



Abdomen : Segment i dark brown to black, with short black hairs 

 sparsely distributed, the pleura with fringe of longer hairs that reach 

 segment 2. Segment 2 black, the posterior half somewhat white- 

 pruinose, with short, fine, black hairs. Other segments black with 

 bloom of bluish-white pruinosity, sparsely covered with short, fine, 

 black hairs. Sternites gray. 



Genitalia: Cercus (pi. 28, fig. 133) dome-shaped, its height not 

 quite twice its length (width). Anal lobe (pi. 28, fig. 133) broad, 

 its ventral extremity somewhat quadrangular, the dorsal extremity 

 tapered. Genital rod (pi. 28, fig. 134) with very slight, if any, basal 

 dilatation ; apical expansions of arms of genital fork subtriangular in 

 shape, with well-sclerotized outer basal angle, an arm of which appears 

 to cross the expansion diagonally ; arms broad and ribbonlike, forming 

 an angle where they diverge. Ovipositor (pi. 28, fig. 135) very small, 

 triangular in shape, the apex pointed. 



Pupa (pi. 36, fig. 281, and pi. 39, fig. 321). — Granulosity on entire 

 thorax ; 3 arborescent trichomes on either side of midline of thorax. 

 Dorsal surface of abdominal segments : Without granulosity ; spines 

 on segments 2-4 are anteriorly directed; segment 2 with 8 simple 

 spines in transverse row across the middle, the row divided in two by 

 median space ; outermost spine on either side more separated from the 

 adjacent spine than are any two other spines ; anterior to the outermost 



