132 ENTOMOLOGICAL NEWS [May, '22 



but the thatching material, flat bits of grass or sedge, sometimes 

 slender rush, is much less evenly arranged and the fragments are less 

 uniform in size. Especially on the case of the $ , a few much longer 

 pieces, sometimes pine needles, are attached to its upper portion, often 

 projecting beyond the lower extremity of the case. The lower half 

 of the case bears fewer and- shorter pieces, usually showing the silken 

 tube in part ; and the general effect is of a shaggier, more slender and 

 tapering case than that of tracyi. 



Larva, last stage. Length, 15-20 mm.; width of head, 2.1 mm. Pale 

 dull grayish brown ; the head and the strongly chitinized portions of 

 the thoracic segments are dark brown with white markings, which are 

 continued less conspicuously on the setal plates of the immediately suc- 

 ceeding abdominal segments, fading out caudally. The pale markings 

 of the thoracic segments consist of the usual narrow longitudinal lines 

 and the margins of the chitinized plates. Though the proportion of 

 light and dark is variable, the conspicuous head-markings usually con- 

 sist of three oblique bars on each epicranium, in a symmetrical distribu- 

 tion of light and dark areas on the front, and in a horseshoe-shaped 

 band whose arms reach the adfrontal sclerites between the adfrontal 

 setae. The 2nd adfrontal, the frontal puncture, and the frontal seta 

 are almost in line, the latter falling very slightly below a line drawn 

 joining the other two. 



Puf>a of $. Length 10-11 mm. Structurally similar to that of 

 tracyi, but dark chestnut brown in color (tracyi is reddish amber), 

 more rugose and less polished than that species. The mesothoracic 

 wings overlap a portion of the third abdominal segment, ventrally; the 

 mesothoracic legs and the broad antennae extend to the wing-margin, 

 and the prothoracic legs almost reach the margin. The cephalic por- 

 tions of the abdominal segments, especially dorsally, are striately 

 rugose. A short spiny dorso-cephalic ridge, the teeth directed caudad, 

 is present on segments 3, 4, 5, 6, 7 and 8, low and indistinct on 3, 4 and 

 5, thence progressively more prominent, on 8 expanding into a leaf-like 

 appendage. Segments 3, 4, 5, 6 and 7 each bears a dorso-caudal row 

 of fine short spines, their points directed cephalad. The caudal seg- 

 ments are curved ventrad, each caudal hook terminates in a single 

 thorn, and the abdominal spiracles are raised slightly above the body 

 surface. 



Adult $. Expanse, 17mm. Blacker (less brown) than tracyi. The 

 antennae are broadly bipectinate, with 30-34 joints (in the several 

 species examined the number of joints proved variable, and the apparent 

 3rd joint bearing more than two pectinations was counted as a single 

 joint). As in cclibata and tracyi, the shaft and its pectinations are 

 scaled on one side with semi-appressed hair-like scales. Compared 

 with tracyi of approximately the same robustness and wing expanse, 

 the legs are shorter and more slender, the primaries are apically more 



