J. R. MALLOCH 271 



Female. — Differs from the male in having the frons over one-third tlie 

 head-width, the bristles of tibiae less numerous, those on posterior surface of 

 hind pail usuallj' one to three in number and confined to basal fourth, and the 

 abdomen more conical, without any traces of dorsal spots. Length, 8 to 9 mm. 



Type. — -cf ; Beulah, New Mexico, June 28, 1902, top of range, 

 [A. N. S. No. 619G]. Paratijpes.—\& , 29; topotypical; IcT, 

 Bozeman, Montana, June 20, 1906. [Montana Exp. Sta.] ; 1 9 , 

 same locality, June 12, 1903, elevation of 4700 feet, [Montana 

 Exp. Sta.]. 



The above species differs from any North American form known 

 to me in having a very broad frons in the male and in the deep 

 black color. 



Aricia punctata Stein 



1897. Aricia punctata Stein, Berl. Ent. Zeit., .xlii, 182. 



The collection contains one female from Cloudcroft, New 

 Mexico, June 16. 



Aricia lucorum Fallen 



182.3. Musca lucorum Fallen, Dipt. Suec, Muse, .55. 



One male, Yosemite Valley, California, May 22, 1908; one 

 male and two females, Redwood Canon, Marin County, Cali- 

 fornia, May 17, 1908; one male, Moscow, Idaho, June 2, 1908. 



A widely distril3uted species both in North America and 

 Europe. 



Aricia brevis Stein 



1897. Aricia brevis Stein, Berl. Ent. Zeit., xlii, 180. 



There is one female specimen in the collection whicii agrees with 

 the type specimen in the Hough collection, except that it is smaller. 



Locality; Beulah, New Mexico, June 28, 1902, top of range. 



Aricia poeciloptera sp. n. 



Fciiialc. — Ijhick, densely gray pruinesc-ent. Head black, ilenselj- gray 

 pruinescent; when viewed from in front there is a silvery quadrate spot visible 

 on parafacials at base of antennae, which when viewed from the side becomes 

 black; antennae black; palpi fuscous. Thorax with four rudimentary brown 

 vittae on dorsum. Abdomen with two jjairs of brown spots on dorsum; the 

 larger bristles set in small brown dots. Legs black, apices of femora and 

 all of tibiae reddish yellow. Wings clear, i)()th cross-veins broadly infuscated. 

 Calyj)tra white. Haltercs yellow. 



TRANS. AM. ENT. SOC, XLIV. 



