954 CHARLES PAUL ALEXANDER 



face of body densely covered with long, satiny, appressed hairs; thoracic and abdominal 

 segments with a dorsal and a ventral transverse ridge of short, stiff hairs just before caudal 

 margins of segments, these being longest on lateral parts of ridge; dorsal segments 6 and 

 7 with incomplete transverse rows at about rnid length; on ventral surface of abdominal seg- 

 ments 1 to 3, near base, two transverse rows of tiny spines with a depressed area between; 

 segment 4 without this distinct double ridge; segments 5 to 7 with a very conspicuous 

 mouthlike depression at base of each, with a liplike margin on either side, the anterior margin 

 narrow with stiff hairs, the posterior margin swollen and densely set with tiny spines; on seg- 

 ment 8 the transverse mouth lying near end of segment, its anterior lip with a dense fringe 

 of long hairs directed backward. Spiracular disk (Plate LXXX, 434) surrounded by four 

 lobes; lateral lobes the shortest, blunt at tips, inner face of each lobe slightly expanded 

 at tip, a few short silky hairs on outer face of lobe, inner face slightly chitinized; ventral lobes 

 longer, broad, tapering gradually to obtuse tips, notch between lobes deep, V-shaped, a 

 narrow fringe of short, dense, golden, recurved hairs along outer face; at tip of each ventral 

 lobe a single long, powerful bristle. Spiracular disk unmarked. Spiracles large, very 

 widely separated, situated at base of lateral lobes. 



Head capsule (Plate LXXX, 433) very small and narrow, the plates, four" in number, 

 being greatly elongated. (The exact details are difficult to see in the material available for 

 study.) Labrum broad, anterior margin evenly rounded, with a few long hairs. Epipharyn 

 geal region provided with long setae directed backward. Mandible very small, base 

 narrowed, tip produced into an acute point with smaller teeth at about midlength. Mental 

 region feebly chitinized. Hypopharynx semicircular, rounded, anterior margin delicately 

 grooved. Esophageal region elongated, inclosed by chitinized plates provided with parallel 

 ridges running outward on one side and inward on opposite face, upon focusing produc- 

 ing a latticed appearance. Maxilla densely hairy. Antenna two-segmented, conspicuous; 

 basal segment short, apical segment larger, suboval. Sides of capsule on swelling behind 

 the maxilla with a brush of very long hairs. Plates of capsule elongated, expanded 

 and chitinized at tips and along margins; ventral plate near esophageal region with 

 setae. 



Pupa. Length, 8.4 mm. 



Width, d.-s., 1.1 mm. 

 Depth, d.-v., 1.3 mm. 



Coloration light yellowish brown; abdomen darker; thoracic dorsum, sheaths of legs, 

 and ovipositor more yellowish. (In younger pupae the coloration is more uniformly 

 pale.) 



Form slender, body narrow. Eyes very large, rounded (Plate LXXXI, 441). Antennal 

 sheaths lying directly across face of eye. Vertex with a small but prominent crest lying 

 transversely above eyes; cephalad of this crest and just proximad of the antenna! bases, a 

 setiferous tubercle. Front between eyes moderately broad, produced caudad into the very 

 elongate rostral sheath, which is transversely wrinkJ3d. Sheaths of maxillary palpi recurved, 

 lying alongside rostrum. Sheaths of labium tiny, bilobed, lying at tip of rostrum. Two 

 long setae on front between eyes. Eyes very large, narrowly separated on dorsum of head, 

 the hinder part sunken under pronotum. Two conspicuous black tubercles behind antennal 

 bases, each bearing a long, stout seta. Pronotal breathing horns (Plate LXXX, 435) small, 



