28 BULLETIN 85, UNITED STATES NATIONAL MUSEUM. 



all Utah (Hubbard and Schwarz), June 15 to 30; Canon Cit}^, Colorado 

 (J, Gravenstock), on ''cultivated tomatoes," October 15, 1884; 

 Glenwood, Colorado (C. P. Gillette), no data; (Mesilla, New Mexico 

 (Cockerell), August 3; Santa Fe, New Mexico (H, S. Barber), May 

 6; Placer County, California (Koebele), September; Alameda, Cali- 

 fornia (Koebele), August 1, 1885; San Mateo, California (Baker), 

 no data; Castle Kock, Nevada County, California (Koebele), Sep- 

 tember (doubtful specimens) ; Claremont, California (Baker) ; Oregon 

 (Baker), no data; Washington (C. P. Gillette), no data; Acapulco, 

 Mexico (Baker); Havana, Cuba (Baker). The distribution is wide, 

 also, throughout Europe, many localities in Asia; Japan (Kuwayama). 



The food plants are several and varied: Polygonum, several species; 

 CaltJia palustris; Artemisia tridentata; probably others, also. 



It is quite possible that there are several closely related species in 

 this large series of specimens before me, but with the present inade- 

 quate biological data it is impossible to separate them. For the 

 present, at least, the name caliliae will be applied to all. The varia- 

 tions in color, marldngs, size, relative proportions of parts, size of 

 genitalia, etc., are so numerous and gradual and intergrade to such 

 an extent that it is impossible to recognize two or three species wdthout 

 being required to recognize a dozen. 



Aphalara folygoni of Forster was said by Loew ('82:233), to be 

 identical with caltliae. Mally's polygoni, notwithstanding Miss 

 Patch's statements, seems to differ from calthse no more than do 

 many other slight variants. For the present, therefore, it seems 

 reasonable to continue to recognize the two species as identical, 

 polygoni being a synonym ot calthse. This conclusion is based on the 

 examination of several of Mally's specimens and several of those 

 studied by Miss Patch, as well as several European specimens of 

 both species. 



A. nuhifera Patch ('12b: 216) is very close to calthse and is really 

 not more distinct than many variants of the species. However, 

 until more certain disposal of this variable specific group can be 

 made, nuhifera will not be merged into calthse. In the one paratype 

 wliich Miss Patch has kindly loaned to me practically the only differ- 

 ence there is between the two species is in the longer genital segment 

 of the female of nuhifera, and this character is subject to some varia- 

 tion in calthse. 



Aphalara exilis Weber and Mohr was referred (Crawford 'lib: 496) 

 to calthse, with some uncertainty. Since then I have examined several 

 additional specimens of that European species, as determined by 

 Melichar and Renter, and the identity of the two species seems more 

 certain. However, since exilis has not been reported from America 

 we need not concern ourselves with it at present. 



