﻿236 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lOO 



uted on north-central and northwest coast ( JNB et al., P. W. Oman) 

 [U. S. K M., CU, JNB]. New Georgia: Segi Point (C. O. Berg) 

 [U. S. N. M.], Munda Point (J. G. Franclemont) [U. S. N. M., CU, 

 JNB]. Awmdel: (J. G. Franclemont) [U. S. N. M., CU, JNB]. 



TRIPTEROIDES (RACHISOURA) TOROKINAE, new species 



Figure 33, c, c 



Distinctive characters. — Adults: Unornamented, wing scales all 

 broad dorsally. Proboscis 1.2 as long as front femur. Male palpi 

 with a brush of 20 to 30 long bristles on apex; without the bristles 

 0.23 of proboscis. Female palpi 0.17 of proboscis, terminal segment 

 with two to four strong bristles. Ninth tergite of male with a deep, 

 narrow emargination ; bristles on lobes flattened. Prescutellar bristles 

 reduced, at most a single weak pair. 



Larvae (third instar only) : Maxilla with greatly developed terminal 

 spines. Thoracic spines absent. Middle abdominal segments dorsally, 

 on each side, with a stellate tuft and a single small spike arising just 

 anteriorly. Pecten teeth four or five on each side. Siphon light brown, 

 index about 2.5. Comb scales in a single row, four to seven in number. 



Description of the 'male. — ^Wing : 3-4 nun. 



Head : Proboscis about 1.2 as long as front femur, slightly shorter 

 than abdomen, dark-scaled, labella lighter. Palpi (exclusive of ter- 

 minal bristles) approximately 0.23 of proboscis, dark-scaled; apical 

 segment short, but as wide as preceding segment, not conspicuously 

 bent internally, with a tuft of 20 to 30 long, dark bristles; bristles 

 almost two-thirds as long as the rest of the palpus (fig. 33, a) . Clypeus 

 dark, bare. Antenna about 0.90 of proboscis; torus piceous, with 

 minute light hairs; flagellar whorls scanty; last two segments elon- 

 gated, with denser pubescence, penultimate equal to three preceding 

 segments, terminal a third longer. Vertex clothed with broad, ap- 

 pressed, dark scales, except for narrow light line around the eye 

 margins and a pair of lateral white-scaled patches; erect occipital 

 scales short, white in the center, dark laterally. 



Thorax: Scutal integument very dark; thick, shaggy vestiture of 

 broad, appressed, curved, dark, bronzy scales, some narrower scales 

 also present, a few narrow white scales on anterior promontory ; scales 

 on supraalar areas broader and lighter ; no dorsocentral or acrostichal 

 bristles ; prescutellars usually absent, sometimes a single pair of weak 

 bristles is present. Scutellum dark, completely covered with very 

 broad, appressed, flat, dark, bronzy scales ; bristles dark brown. Post- 

 notum brown, darker centrally, bare. Pleural integument dark brown, 

 unsclerotized areas light ; upper part of propleuron, lower anterior part 

 of sternopleuron, middle posterior part of mesopleuron, meron and 

 metameron bare ; remainder of pleura covered with broad, appressed, 



