148 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I25 



pie Spines in transverse row along anterior margin, with median space. 

 Ventral surface of abdominal segments : No granulosity ; all spines 

 are anteriorly directed ; segment 4 with a single simple spine on either 

 side of the midline halfway back from the anterior margin ; segment 

 5 with transverse row of 4 bifid spines, crossing about three-fourths 

 the distance from the anterior margin, interrupted by median space ; 

 segments 6 and 7 with 4 spines in transverse row about three-fourths 

 the distance from the anterior margin, the outer spines simple, the 

 inner one bifid ; the two spines on either side of the midline are more 

 separated than those on segment 5, the distance between them approxi- 

 mately equal to that of the median space. Terminal spines very short, 

 conical. 



Respiratory apparatus (pi. 36, fig. 288) of each side arising just 

 behind the anterior margin in the region of the humeral angles ; com- 

 posed of 8 filaments which branch as follows : 3-3-2 ; all filaments have 

 superficial annulations and microscopic spicules. Maximum length of 

 filaments, 1.8 mm., about 0.5 times length of cocoon ; average diameter, 

 28 fi. 



Cocoon (pi. 39, fig. 328) : Length of base, 3.5 mm. ; maximum 

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

 type, without collar, but with lateral margins of base connected at 

 anterior end by narrow band ; usually with anteriorly directed exten- 

 sion of case from dorsal margin of anterior aperture ; texture of case 

 parchmentlike, threads not visible ; rim around anterior aperture not 

 thickened. Cocoon covering abdomen and half of thorax ; attached 

 along posterior half of base. 



Larva (pi. 40, fig. 367, and pi. 42, fig. 404). — Total length, 4.4-4.6 

 mm. Length of head capsule i.i times the width. Width of thorax 

 1.4 times that of head. Width of abdominal segments 1-4 equal to i.i 

 times that of head; segments 5-7 expanded, 1.7 times width of ab- 

 dominal segments 1-4; cross section and general shape the same as 

 other species of the subgenus Lanea. Tan to yellow, with grayish- 

 green transverse band across the abdominal segments, the bands inter- 

 rupted at the middle of dorsum ; band of same color forming collar 

 just posterior to head capsule ; ventrolateral patches not usually visible 

 on segments 6 and 7. 



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

 plate 40, figure 367. Each cephalic fan with 27-28 pectinate branches, 

 the hairs on these branches extremely fine, short, somewhat separated, 

 simple, not intermixed with other kinds of hairs. Mandible with 

 2 teeth on its inner margin, separated from each other but very close 

 together, the more basal one very sharply pointed and needlelike. An- 



