Nov., '07] ENTOMOLOGICAL NEWS. 397 



A. peritomae (typical) comes from Las Cruces, N. M., males 

 at Solidago canadensis, end of August ( Townsend and Ckll. ) , 

 females at Helianthus annuus, Sept. 21-22 (Ckll.}; Mesilla 

 Park, N. M., at flowers of Isocoma u'rightii, Sept. n, male 

 ( W. Porter}; Pecos, July 15 ( IV. P. Ckll.}; San Ignacio, Sept. 

 i {Porter and Ckll.}; Embudo, September 27, females at CJny- 

 sothamnus (Ckll.}; Rociada, August 20 ( W. Porter}; Santa 

 Fe, August, male at Chrysopsis (Ckll.}; all these localities in 

 New Mexico. 



Alamosa, Colorado (Johnson}. There is a very evident pref- 

 erence for the yellow-flowered Compositae. The range is from 

 the Transition Zone to the Middle Sonoran, in the latter over- 

 lapping that of curta. 



Two varietal forms of peritomae may be recognized : 

 I/ (a} var. interspersa. Male, with much black hair inter- 

 spersed on vertex and mesothorax. The type is the male from 

 Alamosa, reported in ENT. NEWS, Oct., 1905, p. 272, as curta. 

 Another is, from Rociada, N. M., at flowers of Grindelia nuda, 

 Aug. 8 ( W. P. Ckll.}. Specimens from Santa Fe, July, and 

 Las Cruces (one of these obtained by Townsend from Solidago 

 'canadensis, Aug. 27) are intermediate between interspersa and 

 typical peritomae. 



i/ (b} var. tinctula. Light hair of vertex and thorax above, 

 fulvous instead of white, in the female, with much black hair 

 interspersed, in the male with few dark hairs. The type of 

 thictula is a 9 from Rociada, at flowers of Grindelia nuda, 

 Aug. 8 ( W. P. Cockerell}; others are from Las Vegas, at flow- 

 ers of Grindelia nuda, Aug. 10 (S. L. Miza}; Las Vegas, 

 Verbesina exauriculata, July 31 (Ckll.}; and a male from Santa 

 Fe, August, at Peritoma serrulatum. 



Melissodes tristis Ckll. 



Alamogordo, May 13,1 $ ; Highrolls, May 3o-Juue 14, 4 <? . 



Melissodes pallidicincta Ckll. 



Highrolls, May 30, i 9 ; Cloudcroft, June 16, i 9 ; Alamo- 

 gordo, June 7,19. This is probably the female of M. tristis. 

 Mr. Viereck also took M. gilensis Ckll. at Cloudcroft, June 

 16, 9- 



