12 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 68 



12. Carina of gular orifice quite noticeably elevated and very thin at anterior 



extremities eremi Bradley. 



Carina of gular orifice not more thinned nor elevated at anterior extremities 

 than elsewhere brevis Fox. 



BRACHYCISTIS (BRACHYCISTIS) TEXANA, new species 



Male. — Pale brownish-orange, tips of mandibles and stigma 

 fuscous. 



Posterior ocelli about 1.5 their own width from eye, separated 

 from each other by about twice their own width, and from anterior 

 ocellus by a space equal to the width of either; frons very sparsely 

 punctured, and with no ridges in front, barely visible above antennae 

 -when head is viewed directly from side; cJypeus with a quite promi- 

 nent longitudinal broadly rounded eminence in center which has its 

 apex about midway from upper to lower margin, the beveled portion 

 of apical margin broader and less abrupt than usual, tooth on each 

 side of central emargination distinct; space between edge and an- 

 tennal socket a little narrower than socket, mandible with a ridge 

 from base of inner tooth which becomes rounded from middle to 

 base; gular carina as in Figure 32, the sharp angle nearer hind than 

 front margin; antennae crenulate; pronotum almost vertical, not 

 rugose; mesopleura with rather large punctures, most numerous 

 ^interiorly; propodeum broadly rounded above, rather abruptly 

 declivous posteriorly, without ridges or depression above, the lateral 

 upper margins with some setiforous punctures. First abdominal 

 segment very little larger than its apical width, the constriction 

 between it and second well defined; hypopygium as in Figure 49. 

 Venation of forewing as in eremi Bradley. Mid and hind tibiae each 

 with three or more quite strong dorsal bristles. 



Length, 7 mm. 



Holotype. — Cotulla, Tex., May 12, 1906, at light (Crawford and 

 Pratt), Cat. No. 27912, U.S.N.M. 



BRACiryCISTIS (BRACHYCISTIS) EREMI Bradley 



Very similar to hrevis distinguished by the characters cited in key 

 and in notes under last species. The minute hypopygial characters 

 shown in figures 37-39 may not be sustained in a large series of speci- 

 mens, but are the only distinctions I find in comparing single exam- 

 ples of the two species. 



Length, 7-9 mm. 



Originally described from Calexico, Calif. I have before me seven 

 specimens from Higley, Mount Superstition, and Arlington, Ariz., 

 June 15 and 16, and July 7 and 20 (A. Wctmore, E. G. Holt) and two 

 specimens from Hot Springs, Ariz., June 22 and 26 (Barber and 

 Schwarz). The last two specimens are from the National Museum 

 collection, the others are from the collection of the Biological Survey. 



