36o LEPIDOP TERA . 



slightly past the apex on to the costal margin. Hind wings 

 rounded at the apex and hind margin, opaque, blackish-grey 

 shot with purple ; cilia similar. Under side like the upper ; 

 legs bronzy-brown. 



Female similar to that of the preceding species, head 

 shining dark brown, rounded in front, without mouth organs, 

 but having brown drooping antennee, legs long and well 

 developed, dark brown, second and two following segments 

 covered each by a dark horny plate, body dull brown, anal 

 tuft pure white ; ovipositor of great length, much longer than 

 the body. Clinging closely to the end of the larval case, and 

 with the body completely arched as in the last two species. 



June, July. 



Lakva purplish brown ; head glossy black, with two tiny 

 white lines forming a triangle between the eye lobes and 

 pointing dowuward5> ; second segment with a black horny 

 dorsal plate ; third and fourth with three black stripes on 

 each side ; on the fifth these disappear. In a case of silk, 

 covered usually with short lengths of dried grass, but not 

 unfrequently with bits of dead stalk, or narrow strips of 

 bark-skin which curve a little outward ; generally a rather 

 rougher looking case than those of the two other species. 



July or August to May or June, on powdery lichens or on 

 low-growing plants. Mr. A. H. Hamm has a brood now 

 feeding up freely upon leaves of Polygonum avicularc, they 

 also do not refuse sallow leaves, and have constructed their 

 oases of bits of paper. Bruand regarded this species as more 

 especially attached to oak, feeding on the minute lichens, 

 but was uncertain whether it also gnawed leaves. Certainly 

 it affects pine and birch trijnks, and also rocks. 



Pupa light brown ; in the larva case, from which the male 

 pupa forces itself when the moth emerges. Its whole front 

 shield, of leg and wing cases, is thrown ott' unbroken. The 

 female pupa is more like that of a Dipteron, and does not 

 protrude from the case. 



