GEOLOGICAL SURVEY OF THE TERRITORIES. 27? 



beyond the middle, curving inward to the posterior angle j apex trans- 

 parent, veins dusky. Posterior- femora crossed on the outside by two 

 very indistinct, oblique, reddish bands ; inside, beneath, and tibiae orange 

 yellow ; spines of the tibias tipped with black. Antennse pale at base, 

 apical portion dusky. 



Dimensions : Female — length, 1.16 inch ; to tip of elytra, 1.38 inch.* 

 to end of pronotum, from vertex, .44 inch ; femora, .63 inch. 



Habitat : Northeast New Mexico, Colorado, and Wyoming. Since 

 my return home, I have taken here (Southern Illinois) some specimens 

 which appear to belong to this species. 



This species agrees so nearly with Oe. mcxicana (Sauss.) that I would 

 have marked my specimens as such, but for the fact that the wings are 

 yellow at the base. 



STAURONOTUS, (FISCHER.) 



8. Mliotfi, Thos. Syn., 8. Elliotti, Thos. (Proc. Acad. Nat. Sci., 

 Phila., 1870, p. 82.) — Male and female : Medium size, robust, sub-angu- 

 late. Head large, widest below; face sub-vertical, strongly deflexed 

 below the transverse suture; occiput convex; vertex slightly declined, 

 foveolate; foveolas shallow, the central broad, the lateral triangular, 

 the points of the three meeting in a sharp angle midway between the 

 upper angle of the eye and the base of the antennae; frontal ridge not 

 sulcate, narrowed above; lateral carinas distinct, strongly divergent be- 

 low ; eyes medium size, ovate. Pronotum short, sub-truncate in front, 

 posterior angle obtuse and rounded ; the three transverse incisions dis- 

 tinct and closely approximate, 1 shortest, 2 and 3 connect at their ter- 

 mini on the side of the pronotum by an oblique depression ; incision 3 

 about the middle of the pronotum ; median carina distinct, not elevated ; 

 lateral carinas distinct on the anterior lobe, and front part of the pos- 

 terior lobe ; the spaces on the anterior lobe between the median and 

 lateral carinas depressed like shallow basins. Elytra and wings about 

 as long as the abdomen. Posterior femora inflated near the base, atten- 

 uate near the tip. Pectus not broader than the head. Antennas fili- 

 form, reaching the end of the pronotum. Anal appendages of female 

 very short and blunt. Color (siccus) yellow, varied with brown. Head 

 yellow, occiput dotted with brown, sometimes forming imperfect waved 

 lines; antennas pale at the base, remainder brown. Pronotum with a 

 yellow cross on the back ; beginning at the lateral angles of the poste- 

 rior lobe, the stripes converge anteriorly, and, crossing about the middle, 

 fade on the anterior lobe ; a triangular brown spot, between these stripes, 

 on the posterior lobe; sides brownish, fading below. Elytra brown, a 

 yellow stripe along the inner margin; lower half dotted with dark 

 brown. Wings transparent, veins white except at the apex, where they 

 are dusky. Posterior femora yellow, with two or three oblique brown- 

 ish spots near the upper edge, which cross and become distinct bands 

 on the inside ; knee brown ; tibias dusky above and at the tips, rest 

 yellow ; (I think bluish in the living specimens.) 



Dimensions : Female — length, 1.07 inch ; to tip of the elytra, 1.10 inch ; 

 to end of pronotum, .34 inch; femur, .62 inch. Male — length .88 inch; 

 to tip of elytra, .88 inch; femur, .60 inch. 



Habitat : Colorado and Wyoming. 



Named in honor of Mr. Henry W. Elliott, artist of the expedition, 

 who, in addition to his arduous duties, was constant in his efforts to col- 

 lect specimens of natural history, and who rendered me valuable assist- 

 ance in collecting plants and insects. 



This sub-genus of Fischer (Orthop. Europ., p. 351) I have here given 



