REVISION OF MOTHS OF CARPOSINIDAE 15 



venation, and in some instances this may be merely of specific or at 

 most siibgeneric significance. It has become obvious as a result of this 

 study that venation by itself frequently cannot be used for generic 

 characterization in this group. Instead, it must be correlated with 

 several other features, such as those found in the male and female 

 genitalia, for proper evaluation. Thus, until both sexes have been 

 studied for all species, certain correlations cannot be made, and 

 several questions will remain unanswered. 



In this genus I have considered major venational differences (i.e., 

 the relative origin and fusion of veins) to be primarily of subgeneric 

 importance in association with evidence suggested from other mor- 

 phological features. I regard the subgenus Carposina to be one of 

 the most natural units within the group and have attempted to eval- 

 uate and equate the remaining taxa with this one. Several Holarctic 

 species of this subgenus are known, and all demonstrate close affinities 

 to one another. On the basis of such similarity, I have recognized four 

 additional subgroups within the genus, although, for reasons sug- 

 gested above, future evidence may affect the status of one or more of 

 these subgenera. If one were to follow the criteria accepted by Meyrick 

 (1922), then these four taxa would probably represent an equal number 

 of monotypic genera. Comparisons of the known males, however, 

 show a rather basic genitalic type which appears to relate the various 

 subgroups under the single genus Carposina. This is suggested, for 

 example, in a comparison of the males of C. (Carposina) niponensis 

 ottawana and C. (Dipremna) cretata. In contrast, the female genitalia 

 of C. {Hypopremna) bullata does not appear to be closely related to 

 the other species. Thus, it is possible that the male, when discovered, 

 may not possess genitalia of the Carposina type, thereby further 

 justifying a separate generic status for this species. 



In addition to the nine species of Carposina treated in the pages 

 immediately following, two unnamed species are briefly discussed at 

 the end of this paper. Insufficient material is the primary reason 

 why these particular insects have not been identified further. 



Key to the Subgenera of Carposina 



la. Forewings with all veins arising separate from discal cell (fig. 27) . Carposina 

 lb. Forewings with at least one pair of veins stalked to cell. 

 2a. Forewings with veins 8 and 9 stalked to cell. 



3a. Forewings with 3 and 4 stalked (fig. 30) . Dipremna, new subgenus 

 3b. Forewings with 3 and 4 separate (fig. 31). 



Epipremna, new subgenus 

 2b. Forewings with veins 8 and 9 separate. 



3a. Forewings with 7 and 8 stalked (fig. 29); 11 arising at or very 



near origin of 10 Trepsitypa, new status 



3b. Forewings with 7 and 8 separate (fig. 33); 11 and 10 widely 

 separate Hypopremna, new subgenus 



