REPORT OF THE ENTOMOLOGIST. 477 



to grow together in tiifts ; even when their bases are well separated 

 their tips turn toward each other or toward the common center of a 

 group ; they are quite thickly scattered over the thorax, but less so 

 over the abdomen ; all around the edge of the body they appear in 

 close tufts, and the concentric subdorsal ring of tufts which is so 

 prominent in the next stage is i)lainly seen in this. The secretory 

 pores are scattered irregularly all over the back, and are more nu- 

 merous than in the previous stage : they also occur under the lateral 

 edges of the body. They are small and circular, and, seen directly 

 from above, have a double outline, indicating a circular central ori- 

 fice. Around the edge of the body is a row of much larger pores, 

 brown in color, which protrude from the body, masked by the lateral 

 tufts of hairs, each with a circular crown or lip at tip, from which 

 proceeds a long, fragile, glassy tube. (Plate II, Fig. 6.) The legs and 

 feet are a little stouter than before, the tarsal digitules are shorter, 

 and their enlarged tips quite indistinct. The six anal hairs are still 

 present, though hardly noticeable as they protrude from the mass of 

 shorter hairs. 



The adult Female — fourth Stage (Plate II, Fig, 5). — Imme- 

 diately after the molt by which the insect passes into this stage, it is 

 free from the waxy excretion and presents a broadly oval form, flat- 

 tened below and quite strongly convex above, with two prominent 

 raised surfaces on the second and third thoracic segments. Its color 

 is still reddish brown, with several darker spots, especially upon the 

 front half and along the sides of the posterior half of the body, and 

 the antennre and legs are black. The antennse are now 11- jointed 

 instead of 0; joint 1 is nearly twice as wide as long: joints 2 and 3 are 

 subequal in length and thickness and are each somewhat longer than 

 broad; joint 4 is a little more than half as long as 3 and is narrower; 

 joints 5, 6, 7, 8, 9, and 10 increase gradually and slightly in length 

 and decrease very slightly in width; joint 11 (club) is irregularly ovoid 

 and is one and one-half times as long as 10; the special hairs are a 

 little shorter than in the previous stage. The whole body is furnished 

 with short, black hairs, more numerous than in the last stage, arranged 

 in tufts, particularly around the edge, where they occur in a double 

 parallel row, the inner row being practically subdorsal and accentu- 

 ated by- a slight ridge. Down the central portion of the dorsum of 

 the abdomen the segments are indicated by the transverse rows of hair 

 tufts. The secretory T)ores are exceedingly abundant, occurring in 

 enormous numbers Just under the lateral edges of the body, and scat- 

 tered more sparsely over the back. The individual wax filaments 

 which issue from these pores are very delicate and curly, and there 

 is reason to suppose that two or three issue at one time from one pore, 

 as they are frequently seen connected at base; the pore opening, 

 however, seems to have a single simple opening. The inner row of 

 tufts on the back is broken at its anal point by a depression, in which 

 is situated a very large pore, from which the insect occasionally ejects 

 a globule of a semi-liquid honey-dew. This depression is surrounded 

 by an irregular ring of hairs, which are yellowish in color instead of 

 black. The glassy filaments arising from the large tubular pores 

 described in the last stage are now very long and radiate from the 

 body in almost every direction. They break off easily, yet still often 

 reach a length double that of the insect and her egg-sack together. 

 What is probably the opening of the oviduct is situated on the under 

 side of the seventh abdominal segment. It is surrounded by a trans- 

 versely oval chitinous ring. 



