228 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I25 



positor (pi. 32, fig. 206) small, narrow, its length twice the width, 

 the apex somewhat expanded. 



Pupa (pi. 37, fig. 305, and pi. 39, fig. 345). — Thorax smooth, with- 

 out granulosity ; usually 4 arborescent trichomes on either side of mid- 

 line on anterior fourth of thorax. Dorsal surface of abdominal seg- 

 ments : Without granulosity ; spines on segments 2-4 are anteriorly 

 directed, those on segments 7-9 are posteriorly directed; segment 2 

 with 12 simple spines in transverse row three-fourths the distance 

 from the anterior margin, with median separation ; segments 3 and 4 

 with 8 simple spines in transverse row three-fourths the distance from 

 the anterior margin, the spines larger and heavier than on any other 

 segment, with median separation ; segments 7 and 8 each with trans- 

 verse row of 16 simple spines across the anterior margin, the row on 

 segment 7 with median separation, that on segment 8 without interrup- 

 tion ; segment 7 with comblike groups of minute spines lateral to the 

 ends of the row, in the median space, and intermixed with the spines 

 forming the row ; segment 8 with combs only lateral to both extremi- 

 ties of the row; segment 9 with band composed of comblike groups 

 of spines across the anterior margin, in more-or-less three irregular 

 rows, the band divided by median space. Ventral surface of abdominal 

 segments : No granulosity ; all spines are anteriorly directed ; segment 

 4 with transverse row somewhat before the posterior margin, com- 

 posed of either 2 or 4 simple spines, divided by median space ; trans- 

 verse rows on segments 5-7 situated along the posterior margins; 

 segment 5 with row composed of 4 bifid spines, with median separa- 

 tion ; segment 6 with 4 spines in row, the outer spines simple, the inner 

 ones trifid ; segment 7 with 4 spines in row, the outer ones simple, 

 the inner ones bifid ; the two spines on either side of midline of seg- 

 ments 6 and 7 are farther apart than those on segment 5, the distance 

 between them about equal to that of median space. Terminal spines 

 very small, like flattened cones. 



Respiratory apparatus (pi. 37, fig. 305) of each side arising slightly 

 behind the anterior margin of thorax; composed of 8 filaments that 

 branch as follows : 3-3-2 ; all branching rather close to base ; all fila- 

 ments with undulations along the surface and with microscopic 

 spicules. Maximum length, 2.3 mm., about 0.8 times the length of 

 cocoon ; average diameter, 28 /*. 



Cocoon (pi. 39, fig. 345): Length of base, 2.9 mm.; maximum 

 width, 1.4 mm.; maximum height, 1.4 mm. Cocoon of wall-pocket 

 type, without collar ; rim around anterior aperture thickened ; texture 

 of case parchmentlike, the threads very close together. Cocoon cover- 

 ing abdomen and all but very small anterior band of thorax ; attached 

 along posterior half of base. 



