The legs are well developed and the insect is cai)al)le of quite rapid 

 locomotion notwithstanding the unwieldiness of the enclosed hind-l)(id\ 

 which is usual!}' sustained at an angle of forty-five degrees and sometimes 

 almost vertically. 



I have found the Co'eophone rather difficult to rear and diis is es- 

 pecially the case with the single brooded species that can be collected 

 only in autumn. These must be preserved not only over winter, hut 

 through the sdll more trying months of spring and summer often late 

 into September and October. During all this time the entomologist 

 must continually guard these objects of his care fpjm excessive heat, 

 mould and mites. 



All Coleophora larvae are averse to dampness and vet a certain 

 amount of moisture about the time of their final tranformations seems 

 to be necessary te) their complete development. 



For four or five successive years I have collected and cared for the 

 larvae of a certain species which may be found in September and October 

 on the seeds of Chenopodiuin album. The cases of this species are at first 

 conical and are carried in an almost erect position, but at maturitv be- 

 come somewhat fusiform and considerably curved at the anterior end. 

 The average length is o 20 inch, the texture peculiarly firm with an ir- 

 regular roughened and mottled surface which closely imitates the dull 

 black, whitish green and pale brown of the ripening seed cases of the 

 Chenopoiium . 



The head and narrow cervical shield are polished pale-brown in- 

 distinctly mottled with a darker shade of the same color. Thoracic seg- 

 ments beautifully ornamented with curved and wavy lines of crimson 

 on a pearl-white ground and the long and slender legs are similarly 

 marked. When removed from the case the hind body is found to be of 

 a pale-green or greenish-white color, depressed cylindrical form and with 

 a very soft and easily ruptured integument. I'he prolegs are of the 

 normal number but reduced to simple circlets of minute hooks. Supra- 

 anal plate dark fuscous, horny and edged with short stif^" hairs. 



On the dorsum of the seventh segment, in many of the larvae exam 

 ined, were a pair of dark s{H)ts each one with t'AO points projecting 

 toward the medio-dorsal line. The nature of these marks or organs 1 have 

 not yet ascertained. 



Growth is usually complete by the middle of October and the larvit 

 then either desert their food plant entirely or attach themselves to the 

 main stalk. Here they remain ten or eleven months and sometimes even 

 longer in a state of semi-dormancy. 'Ihat they are not completely dorm- 

 ant is evident by the fact that if forcibly loosened from their places, or 

 disturbed by the pressure of an\' other body against their cases, or if the 



