266 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I25 



either side of midline. Dorsal surface of abdominal segments: No 

 granulosity ; spines on segments 2-4 are anteriorly directed, those on 

 segments 5-9 are posteriorly directed ; segment 2 with 8 simple spines 

 in a transverse row crossing the segment three-fourths the distance 

 from the anterior margin, the row being divided into two by a median 

 space ; anterior to the outermost spine on either end of the row are 2 

 hairs ; segments 3 and 4 with 8 simple spines in a transverse row some- 

 what before the posterior margin, the row being divided into two by 

 a median space ; anterior margins of segments 5-9 each with uninter- 

 rupted band composed of groups of comblike spines, each group with 

 from 2 to 7 spines. Ventral surface of abdominal segments : No gran- 

 ulosity; all spines are anteriorly directed; segment 5 with 4 simple 

 spines in transverse row about three-fourths the distance from the an- 

 terior margin, the row being divided by a median space ; segments 6 

 and 7 with similar rows of 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. 313) of either side arising some- 

 what behind the anterior margin of the thorax, near the humeral 

 angles ; antlerlike structure similar to that of carolinae but with ele- 

 ments of greater diameter ; smaller elements usually divided into 2 or 

 3 branches near the apex, each with a minute spine at tip ; with longi- 

 tudinal and transverse wrinkles over entire surface, as well as with 

 microscopic spicules. Maximum length (dorsal elements), 1.9 mm.; 

 maximum diameter, 0.3 mm. 



Cocoon (pi. 39, fig. 353) : Length of base, 3.4 mm. ; greatest width, 

 1.9 mm. ; greatest height, 1.4 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 half. 



Larva (pi. 41, fig. 391, and pi. 43, fig. 428). — Total length, 8.5 mm. 

 Width of head i.i times the length. Width of thorax 1.4 times that 

 of head. Average width of abdominal segments 1-4 equals 1.5 times 

 width of head ; segments 5-7 expanded, segment 6 the widest, i .3 times 

 average of segments 1-4; cross section and profile as for capricornis. 

 General color gray, no dark patches on ventrolateral regions of seg- 

 ments 6 and 7. 



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

 plate 41, figure 391. Each cephalic fan with 57-58 pectinate branches, 

 the hairs on these branches short, close together, interspersed at regu- 

 lar intervals with longer, stouter, bifid hairs. Mandible normal in di- 



