﻿SOLOMON ISLANDS TRIPTEROIDES — BELKIN 231 



Genitalia (figs. 33, e ; 34, (?, /) : Sidepiece (fig. 34, /) conical, densely 

 covered with scales laterally and ventrally, dorsal surface with bristles 

 only, bristles present 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 

 (fig. 34, /) simple, very slender, composed of two lateral plates, each 

 with an apical ventral spur and two dorsal projections. Tenth ster- 

 nite (fig. 34, c) with a single strong apical tooth; basal arm expanded 

 at base, slender beyond the middle. Ninth tergite (fig. 33, e) with a 

 deep, narrow emargination, usually less than half as wide as one of the 

 lateral lobes ; lobes truncate at apex, with 8 to 16 strong bristles along 

 apical margin, arranged in two irregular rows, bristles not flattened, 

 relatively slender. 



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

 Terminal antennal segments not elongate. Proboscis 1.1 to 1.2 as long 

 as femur, slightly shorter than abdomen. Palpi 0.21 to 0.23 of pro- 

 boscis, terminal segment either without apical bristles or with two 

 slender bristles arising side by side. Pronotal lobes and posterior 

 pronotum usually almost completely white-scaled. 



Pupa (fig. 37, d). — Cephalothorax : Dorsal surface and base of 

 wing cases darkly pigmented; remainder paler, yellowish brown. 

 Trumpet darkly pigmented tliroughout, uniformly reticulate; index 

 of length to median width a little less than 3.5 to 1 ; somewliat swollen 

 just before middle and compressed laterally near apex; inner wall 

 conspicuously separated from outer is basal half or more; opening 

 small, slightly oblique, basal notch very shallow. Hair 1 very long, 

 always simple, darkly pigmented (black) ; hairs 2 and 3 small, incon- 

 spicuous, simple, hair 3 larger ; hairs 4 and 5 inconspicuous, about the 

 same length, simple or double; 6 very small; 7 fairly long, usually 

 double ; 8 and 9 weak, shorter than trumpet, usually simple ; 10 double, 

 almost as long as 11 but poorly pigmented ; 11 and 12 almost equal in 

 size, well pigmented, usually simple, may be double on apex. 



Abdomen: Usually pigmented a very deep chocolate brown with 

 yellow tinge, posterior segments lighter. First segment : float hair a 

 fairly well developed dendritic tuft; hairs H and L very small; U 

 minute; M small, branched; S rather short, simple; T about three- 

 fourths of K, simple; K simple, long, well-pigmented. Hair B (8) 

 on segments IV to VI very long, simple, moderately stout, attenuated 

 on apex ; that of IV extending beyond apical margin of segment V ; 

 on segments II and III, considerably shorter and less well developed ; 

 very short, unpigmented on VII; all inserted near apical margin. 

 Hair C (10) small, inconspicuous, lightly pigmented, branched on 

 basal segments, usually simple on posterior segments. Hair C simple, 

 very short, inconspicuous, inserted at about a sixth or seventh from 

 apex of segment; laterad of C, especially noticeably on segments IV 



