252 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 125 



row are 2 hairs ; segments 3 and 4 with 8 simple spines in a transverse 

 row across the posterior margin, the row being divided into two by a 

 median space ; anterior margin of segments 5-9 with band composed 

 of groups of combHke spines ; each group on segment 5 with 2 to 5 

 spines ; on segment 6 with 2-6 spines ; and on segments 7-9 with 2-7 

 spines. Ventral surface of abdominal segments : No granulosity ; all 

 spines are anteriorly directed ; segment 5 with 4 simple spines in trans- 

 verse row about three-fourths the distance from the anterior margin, 

 the row being divided by a median space; segments 6 and 7 with 

 similar rows of simple spines, but with the two spines on either side 

 of midline more separated than on segment 5, the distance between 

 them being approximately equal to that of the median space. Terminal 

 spines absent. 



Respiratory apparatus (pi. 38, fig. 310) of either side arising 

 slightly behind the anterior margin of thorax ; antlerlike structure with 

 somewhat variable number of tubular elements, the longer ones taper- 

 ing strongly ; apices of all elements with single point ; with longitudinal 

 and transverse wrinkles over entire surface. Maximum length, 2.3 

 mm. (dorsal element) ; maximum diameter, 0.2 mm. 



Cocoon (pi. 39, fig. 350) : Length of base, 3.0 mm. ; greatest width, 

 1.5 mm. ; greatest height, 1.3 mm. Cocoon of wall-pocket type, without 

 collar ; parchmentlike texture, threads not visible ; rim around anterior 

 aperture not thickened. Cocoon covering abdomen and half of thorax ; 

 attached along posterior fourth. 



Larva (pi. 41, fig. 388, and pi. 43, fig. 425). — Total length, 7.8 mm. 

 Width of head i.i times its length. Width of thorax 1.6 times width 

 of head. Average width of abdominal segments 1-4 approximately 1.4 

 times width of head ; segments 5-7 expanded, segment 7 the widest, 

 1.2 times average width of segments 1-4; cross section and profile 

 as for capricornis. General color gray to tan, with irregular dark 

 patches on ventrolateral regions of segments 6 and 7. 



Head: Designs on frons-clypeus and epicranial plates shown on 

 plate 41, figure 388. Each cephalic fan with 44-45 pectinate branches, 

 the hairs on these branches short, close together, simple, interspersed 

 at regular intervals by longer, stouter, bifid hairs. Mandible short and 

 broad, with 2 teeth (or i bifid tooth) on its inner margin, these ap- 

 parently emerging from the same base, the more distal tooth somewhat 

 longer than the other. Antenna 360 fx long, yellow, 5-segmented, just 

 passing the basal stalk of the cephalic fan ; segment i>2>3<4 ; seg- 

 ment 2 superficially divided into two segments, with a white patch at 

 the median division ; segment 3 with white patch at its distal end ; 

 segment i with white patch at its base and with longitudinal striations. 



