﻿252 PROCEEDINGS OF THE NATIONAL MUSEUM vol. loo 



bristles present on basal portion ; basal lobe with six strong bristles ; 

 clasper long, slender, apical half with several short hairs, especially 

 on upper surface, terminal spine short, deeply inserted. Mesosome 

 simple, short and broad ; composed of two lateral plates, each with an 

 apical ventral spur and two dorsal projections. Tenth sternite ending 

 in about four spines. Ninth tergite with a deep emargination in the 

 middle, somewhat narrower than one of the lobes ; lobes rounded, with 

 eight or nine strong bristles arranged in an irregular double row on 

 the apex. 



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

 Terminal antennal segments not elongate. Proboscis 1.2 as long as 

 front femur. Palpi 0.15 as long as the proboscis. Ventral abdominal 

 coloration pure white. 



Pu-pa (fig. 37, e). — Cephalothorax : Dorsal surface and basal por- 

 tions of wing cases moderately pigmented ; remainder lighter. Trum- 

 pet darkly pigmented throughout, uniformly reticulate; index of 

 length to median width about 4:1; somewhat swollen in the middle and 

 compressed laterally beyond middle to apex ; inner wall well separated 

 from outer in basal half ; opening narrow, elongate, oblique, basal notch 

 deep and narrow. Hair 1 very long, double from base, one of branches 

 with shorter secondary branch ; hairs 2 and 3 short but conspicuous, 2 

 usually simple, 3 double or simple ; 4 and 5 short, branched, equal in 

 size ; 6 and 7 equal in size, slightly shorter than 2 and 3, 6 unpigmented, 

 7 dark ; 8 and 9 about equal in size and as long as trumpet, simple or 

 double; 10 about half of 11, with three or more branches; 11 and 12 

 long, simple. 



Abdomen : Moderately and uniformly pigmented on basal segments, 

 posteriorly lighter. First segment : float hair well developed, some- 

 what flattened, majority of branches arising in one plane ; hairs S, T, 

 U not separated as a group, placed near the others ; H, L, U very short, 

 not pigmented; M moderately long, branched; K, S, and T simple, 

 long, K the longest. Hair B (8) very long and simple on segments IV, 

 V, and VI, usually not reaching apex of following segment, but extend- 

 ing beyond its middle, inserted near apical margin of segments; on 

 segments II and III considerably shorter, simple; on segment VII 

 very short, branched. Hair C (10) inconspicuous, usually branched, 

 better developed on anterior segments. Hair Q>' simple, removed about 

 one-fourth to one-third from apex of segments, poorly pigmented; 

 inserted laterad of or at the same level as C on all segments, best seen 

 on anterior segments. Hair A small, unpigmented, but easily seen on 

 segments II to V ; on VI much longer, pigmented, usually with one or 

 more branches, inserted away from margin; on segments VII and 

 VIII a large fan-shaped tuft with barbed branches, that of VIII ex- 

 tending beyond apex of paddles. Hair A' on segment VIII extending 



