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 midlength; on ventral surface of abdominal seg- 
ments | 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 LX XX, 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 LX XX, 4383) 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.-y., 1.38 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 antennal bases, a 
setiferous tubercle. Front between eyes moderately broad, produced caudad into the very 
elongate rostral sheath, which is transversely wrinkled. 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 LX XX, 435) small, 
