53 



sionally the caudal row of segment seven is weak in the females of 

 some species. As a general rule the eighth segment has but one row 

 of spines, the cephalic one, but two rows have been found in the species 

 of Epinotia and Eucosma, usually in the males. There is, in most 

 genera, considerable difference between the sexes. The antennae do 

 not vary as greatly in this family as in some others, but there is a 

 great variation in the rows of spines, these being usually smaller and 

 less numerous on the caudal row of segment seven in the male and 

 on segment eight in the female. The genus Mellisopus does not show 

 characters of sufficient importance to allow of its retention as a sepa- 

 rate genus, and it is therefore included with Carpocapsa. The only 

 points of difference between that genus and Carpocapsa pomonella, 

 its nearest ally, are that the spiracles are oval, somewhat rectangular 

 and slightly produced, while in Mellisopus latiferreanas they are large 

 and circular but not strongly produced. There is however consider- 

 able variation. Mellisopus shows a slight carinate ridge on the meta- 

 thorax, but this, again, is extremely variable. 



The phylogeny of the group is extremely doubtful. If the spines 

 on the dorsum of the abdominal segments in Eucosma were homol- 

 ogous with those found in the generalized pupae of Nepticulidae and 

 others, it would certainly be the most generalized form and the others 

 would probably follow the sequence of the table to genera. The 

 spines, however, are much broader than any observed in the general- 

 ized types. Eucosma also shows' a remarkable resemblance to the 

 Aegeriidae, so it is probable that it is the most generalized of the 

 Tortricoidea examined. The genera of Epiblemidae may be separated 

 as follows : 



a. With two long distinct setae present on each side of the anal rise, 

 b. Caudal end of body with one row of long, heavily chitinized, flat- 

 tened setae inserted along the line of the row of spines on the 

 tenth abdominal segment, 

 c. Dorsal surface of abdominal segments between the cephalic and 

 caudal rows of spines covered, at least in part, with short trian- 

 gular spines; cephalic row of spines composed of alternating 



large and small spines Eucosma Hiibner. 



cc. Dorsal surface of abdominal segments between the caudal and 



cephalic rows of spines always smooth; cephalic row of spines 



of approximately the same size. 



d. Portion of first coxae exposed on the meson below the maxillae 



more than half the length of the second coxae; body often 



stout, with the length scarcely three times the greatest width, 



but extremely variable ; length averaging 10 mm. 



Carpocapsa Treitschke. 



