12 PEOCEEDINGS OF THE XATIOXAL, ^MUSEUM vol. 75 



Male genitalia similar to those of pulverfana Walsingham, but with 

 stronger, more numerous (6) marginal spines at apex of cucullus and 

 with sacculus more bluntly rounded at incurvation of neck of harpe. 

 Figured from type. 



Alar expanse. — 13-22 mm. 



Type. — In collection Barnes. 



Paratype. — Cat. No. 41209, U.S.N.M., also in American Museum, 

 Canadian National, and Barnes collections. 



Tyjye locality. — Baboquivari Mountains, Pima County, Ariz. 



Food plant. — ^Unknown. 



Described from male type ("15-30 Oct., 1924," O. C. Poling, col- 

 lector), 15 female paratypes from the type locality (dated ''15-30 

 April," "1-15 May," "15-30 May," "27-31 July," "1-15 Sept.," and 

 "15-30 Nov.," all O. C. Poling's 1924 collecting), 2 female paratypes 

 from Loma Linda, Calif, (dated "Aug. 24-31" and "Oct. 16-23"), 1 

 female paratype from Claremont, Calif., 1 female paratype from San 

 Diego, Calif. ("Aug. 14, 1920, " Karl R. Coolidge), and 1 female para- 

 t3''pe labeled "California." A few of these females have been in our 

 collection for some time, either unplaced or under erroneous names, 

 confused with Eucosma pulveratana, Suleima heliantJiana, or S. lago- 

 pana. The species is very close to pulveratana and suadana. From 

 the former it differs chiefly in the paler (more whitish) ground color 

 of the fore wing and from the latter in the absence of any pronounced 

 median costal spot and the less dilated subapical bar of fore wing. 

 From both it differs in slight details of the genitalia. 



EUCOSMA JUNCTICILIANA (Walsingham) 

 Figures 18, 32. 



In Bulletin 123, United States National Museum (p. 123), I 

 expressed some doubt that what Fernald and others had determined 

 as junticiliana and what had been going under that name in our col- 

 lections was really Walsingham's species. The acquisition by the 

 United States National Museum of the Fernald collection has 

 enabled me to make genitalia slides of specimens from the type 

 locality and actually determined by Walsingham. Two of these are 

 labeled "type" and are very likely cotypes from the original Y/al- 

 singham series, one is labeled " Rhyacionia juncticiliana Walsingham, 

 Cal.," and the other has simply a name label without locality or other 

 data. The four are all males and in genitalia agree with the Wal- 

 singham specimen in the American Museum (mentioned in my 

 revision), and differ appreciably from what we have been commonly 

 calling juncticiliana, too much so, I now believe, to permit us to 

 consider the two forms as anything but separate species. The junc- 

 ticiliana of authors being therefore without a name, I am describing 

 it below as a new species. 



