1909.] NATURAL SCIENCES OF PHILADELPHIA. 457 



Mountains, Los Angeles, California, August 8 (cT) and September 1 

 (9), 1907. Hebard (c?) and Poling (9), collectors. [Hebard Col- 

 lection.] 



Related to C. shastanus Bruner and rabula Rehn and Hebard, 

 differing from the former in the broader tegmina, the free upper 

 branch of the first subjacent radial vein and in the more deeply sulcate 

 frontal costa, while from the latter it differs in the narrower inter- 

 space between the eyes, in the more distinct wing-band and decided 

 general color pattern and in the glaucous caudal tibiae. 



Size large; form moderately robust; surface finely rugulose. Head 

 with the occiput distinctly arcuate, interocular space distinctly nar- 

 rower than the shortest diameter of the eye in both sexes, not quite 

 as high as the summits of the eyes; fastigium considerably declivent, 

 slightly longer (cT) or no longer (9) than broad, divided longitu- 

 dinally into two parts by a marked medio-longitudinal carina which 

 extends caudad becoming obsolete on the occiput, each side of the 

 fastigium independently concave in section, lateral margins moder- 

 ately elevated; lateral foveolse trigonal, elongate (cT) or subequi- 

 lateral (cJ 1 ), moderately impressed; frontal costa of moderate width, 



Fig. 13. — Circotettix s-plendidus n. sp. Lateral view of male type. (X 2£.) 



slightly (c?) or considerably (9) narrowed dorsad and ventrad of 

 the ocellus, the margins very slightly or considerably divergent ven- 

 trad, around the ocellus and ventrad of the same the surface is deeply 

 and rather broadly sulcate; accessory facial carinse prominent; eyes 

 not very prominent, of moderate size, ovate subreniform in outline, 

 in length slightly (9) or distinctly (cT) longer than the infraocular 

 sulcus; antennae somewhat longer than the head and pronotum 

 together. Pronotum deplanate dorsad, the caudal transverse sulcus 

 rather deeply impressed, the metazona quite broad; cephalic margin 

 very slightly angulate, the caudal margin acute (cT) or rectangulate 

 ( 9 ), lateral shoulders noticeable only on the metazona and there 

 rather heavy and well rounded; metazona about twice the length of 

 30 



