272 
NORTH AMERICAN MYRMOSIDAE 
I have not seen a specimen of this species. Professor Cockerell 
writes me that the type is in the United States National INIuseum. 
California: La Jolla, Aug. 1901, 3cf , at light, types. 
Brachycistis (Brachycistisj elegantula Cockerell and Casad, cf. 
Genitalia: Sagitta long and slender, blade-like, suliaciite; volsella reduced 
to a small scale; ramus broad; squama long and slender, its apical margin 
entire; uncus long and slender, scarcely widened before and notched at the 
tip (hgure 48). 
Description and figure drawn from a specimen in the collection 
of the American Entomological Society, presumably from the 
type series. 
Xew Mexico: INIesilla Park, September 22, 1894, many male types, 
(T. D. A. Cockerell). 
Brachycistis (Brachycistisj petiolata Fox, 
Lower California: Calmalh Mines, April, [Type, American Entomo- 
logical Society]. 
Brachycistis (Brachycistis) carinata Fox, d' ■ 
Genitalia: Sagitta long, slender, blade-like, ending very slightly before the 
tip of the uncus; volsella a minute scale; squama slender, with an entire apical 
margin; uncus, from a dorsal view long and slender, strongly widened ju.st 
before the tip, which is broadly notched, from the side swollen before and 
tapered at the apex (figure 44). 
Described from a homotype from La Jolla, California. 
California: [Type, American Entomological Society]; La Jolla, June 25, 
191.3, 1 o', (E. P. Van Duzee), [Cornell University]; San Diego County, June 
28, 1913, Icf, (E. P. Van Duzee), [Cornell University]; Claremont, 2 <^, (C. F. 
Baker), [Pomona College and Cornell LTniversity]; Ramona, San Diego 
County, August 15, 1914, 1 cf, (the author), [Cornell University]. 
Brachycistis (Brachycistis) idiotes Cockerell, cf. 
1903. Brachycistis idotes Melander, Trans. Amer. Ent. Soc., 29: 327, o’. 
Forewing illustrated, pi. IV, fig. 62. 
New Mexico: Las Cruces, type jiartly destroyed by Anthrenus, (T. D. A. 
Cockereiij. 
Brachycistis (Brachycistis) aequaiis Fox, o’. 
Colorado. Nevada. Arizona. [Type series, American Entomological 
SocietjL] 
Brachycistis (Brachycistis) noctivaga new' species 
O'. Brownish orange; legs and antennae yellow; clothed with a sparse, 
somewhat 3 'ellowish puliescence; wings hemline; the veins and stigma 3 'el- 
low; 8e + R -|- M, except at ajiex, lirown. 
