﻿222 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lOO 



Apex of hind tibia and base of first hind tarsal segment with special- 

 ized hairs and scales. Hind tibia 0.9 of middle tibia. 



Abdomen : Very dark iridescent bronzy dorsally ; lateral portions 

 of tergites light-scaled (invisible from above) ; ventral surface uni- 

 formly white-scaled. First tergite with numerous light hairs, eighth 

 segment with strong dark bristles; bristles on other segments very 

 sparse. 



Genitalia (fig. 33, d) : Sidepiece conical, densely covered with scales 

 laterally and ventrally, dorsal surface with bristles only, bristles pres- 

 ent on basal portion ; basal lobe poorly developed, with 7 to 10 large 

 bristles and numerous smaller bristles and hairs ; clasper long, slender, 

 smooth, with a short terminal spine. Mesosome simple, very slender, 

 composed of two lateral plates, each with an apical ventral spur and 

 two dorsal projections. Tenth sternite with a single, strong tooth; 

 basal arm expanded at base, slender beyond the middle. Ninth tergite 

 (fig. 33, d) with a wide, shallow, median emargination approximately 

 equal to width of one of the lateral lobes ; lobes extending diagonally 

 caudad from the emargination, with 12 to 14 or more strong bristles 

 along apical margin, arranged in two irregular rows. 



Female. — ^Very similar to the male, except for sexual characters. 

 Terminal antennal segments not elongate. Proboscis 1.1 to 1.2 as 

 long as front femur, slightly shorter than abdomen. Palpi 0.21 to 0.22 

 of proboscis, terminal segment without long hairs. 



Pwpa (fig. 37, /). — Cephalothorax : Uniformly pigmented a deep 

 yellow; dorsal portion of mesothorax darker, brownish. Trumpet 

 darkly pigmented throughout, uniformly reticulate; index of length 

 to median width about 3.5 to 1; somewhat swollen just before middle 

 and compressed laterally near apex; inner wall conspicuously sep- 

 arated from outer in basal half ; opening small, slightly oblique, basal 

 notch very shallow. Hair 1 very long, always simple, darkly pig- 

 mented ; hairs 2 and 3 small, inconspicuous, usually with two branches; 

 4 and 5 inconspicuously pigmented, usually double, 5 longer than 4; 

 6 minute; 7 fairly long, poorly pigmented; 8 and 9 shorter than 

 trumpet, moderately pigmented, 8 normally double, 9 occasionally with 

 two branches ; 10 almost as long as 11, but poorly pigmented, simple or 

 double beyond base, 11 about two-thirds of 12, pigmented, double be- 

 yond middle ; 12 long, pigmented, simple or double beyond middle. 



Abdomen: First segment largely yellow; remainder of abdomen 

 a darker yellow, with brownish infuscation on proximal segments. 

 First segment : float hair very poorly developed, a long dendritic hair 

 with few primary branches ; hairs H and L very small, simple ; IT mi- 

 nute ; M small, with a few branches ; S fairly long, simple, poorly pig- 

 mented ; T larger, simple, pigmented ; K much longer than the others 

 and well pigmented. Hair B (8) on segments IV to VI very long, 

 simple, rather stout and darkly pigmented, usually reaching beyond 



