REVISION OF THE OECOPHORIDAE — CLARKE 165 



jidiella^ eleanorae^ heracliana, and cinereocostella with the European 

 nervosa. These have a strong basal process from the sacculus and no 

 clasper in the male and an elongated, sclerotized section of the ductus 

 bursae posteriorly. We have two species in the third group, artemisi- 

 ella and alienella, in which the clasper is present but the basal process 

 of the sacculus is absent in the male and the ductus bursae is wholly- 

 membranous. The fourth group, consisting of the togata-angustati- 

 multi-fldae complex, forms a perplexing assemblage of species charac- 

 terized by their similarity in coloration, by the peculiar spined proc- 

 ess from the base of the sacculus in the male, and by the frequently 

 present sclerites anterior to the genital plate in the female. The fifth 

 and final group is composed of three broad-winged forms, maculatella^ 

 'betulelJa, and groteUa. In the males the divided clasper, extending 

 beyond the ventral margin of the harpe, and the spiraled ductus 

 bursae of the female are characteristic. 



Although rather a large number of species have been reared, the 

 larvae of only six were available for study. By a comparison of the 

 larval characters it will be seen that the first two groups (Group A 

 under larvae) are closely similar. The fourth group (Group B under 

 larva) suggests generic separation, and I am inclined to believe that 

 this group does represent a distinct genus. Likewise I believe that 

 the fifth group should be given a separate generic designation, which 

 would be consistent with other generic separations in this paper. 

 Nevertheless I prefer to wait for the collection of more larvae before 

 making the separations which are suggested or before concluding that 

 the species all belong to one genus and merely represent species groups. 



KEY TO THE SPECIES OF DEPRESSARIA BASED ON 

 COLORATION 



1. Thorax white alienella Busck (p. 180) 



Thorax otherwise 2 



2. Fore wing distinctly reddish 3 



Fore wing otherwise 5 



3. Costa contrastingly lighter than ground color of fore wing 



cinereocostella Clemens (p. 171) 

 Costa not contrastingly lighter than ground color of fore wing 4 



4. Alar expanse 21 mm. or more juliella ^9 Busck (p. 176) 



Alar expanse 20 mm. or less eleanorae, new species (p. 178) 



5. Ventral side of abdomen with two distinct rows of blackish spots 



or lines 6 



Ventral side of abdomen without such spots or lines 8 



6. Fore wing with light discal spot at end of cell 7 



Fore wing without such spot heracliana (Linnaeus) (p. 173) 



29 1 have examined over 150 specimens ot juliella none of which measures as small as 20 mm. The larger 

 specimens of eleanorae approach the smaller specimens ot juliella in size but noce has been found exceeding 

 20 mm. 



