518 BULLETIN UNITED STATES GEOLOaiCAL SURVEY. [Yol.Y. 



tensa Lee, but quite different by tbe coarse sparse punctures of the 

 front, and the nearly smooth. 1-3 ventral segments. The scutellar stria 

 is less elongated. 



CH.J3T0CNBMA ^NEOLA. — Elongate-oval, convex, dull bronze, some- 

 what shining. Head impunctured, subopaque. Prothorax transverse, 

 scarcely narrowed iu front, broadly rounded on the sides, finely margined 

 at the base, punctulate, with a basal row of large punctures interrupted 

 at the middle for about J the width. Elytra but little wider than pro- 

 thorax, striae finely and closely punctured, interspaces indistinctly 

 punctulate, slightly convex. Antennae, tibiae and tarsi testaceous, outer 

 joints of the former dusky. Last two ventral segments more deeply 

 punctured than the others. Length, 1.5"™. 



Garland, Colo. Similar to ojjaoula, but differs by the head less opaque, 

 and the prothorax more finely punctured, as well as by the deeper and 

 more finely punctured elytral striae. 



Helops montanus. — Elongate-oblong, convex, black shining, with 

 brassy lustre. Head rather densely punctured, transverse imi^ression 

 broad, eyes small, convex. Prothorax one-half wider than long, x)unct- 

 ured, sides rounded, margin narrowly reflexed, base distinctly" margined, 

 front angles broadly rounded, hind angles obtuse slightly rounded. 

 Elytra elongate-oval very convex, but little wider than the prothorax, 

 rather strongly margined at the sides, stride fine, scarcely punctured j 

 interspaces flat, slightly rugose and i3unctulate. Scutel finely punctured. 

 Beneath punctured, flanks of prothorax densely not coarsely acicalate. 

 Antennae extending beyond the base of the prothorax, outer joints not 

 compressed. Length, 6.5""". 



Veta Pass. The tarsi are scarcely dilated in any of the specimens I 

 have examined. This species is allied to convexulus Lee, but the jpro- 

 thorax is of a different form, with distinctly defined hind angles. 



Tetkatoma concolok. — Elongate-oval, convex, finely and sparsely 

 pubescent, piceous shining, with a reddish tinge, base of antennae and 

 legs yellowish brown. Head more finely punctured. Prothorax and 

 elytra equally punctured; the former transverse, narrower in front, 

 rounded on the sides, which are narrowly margined ; base margined like 

 the sides, with a large puncture half way between the middle and the 

 basal angles, which are obtuse and rounded. Length, 4"". 



Veta Pass. 



Cryphaltjs mucronatus. — Elongate, cylindrical, black:, opaque, cov- 

 ered with fine pruinose pubescence, and with scattered short, stout white 

 bristles. Prothorax rounded on the sides, not longer than wide, obliquely 

 rounded at the tip, which is mucronate on the margin with two api)rox- 

 imate curved spines ; surface in front of the middle with scattered acute 

 tubercles. Elytra with striae not imi^ressed, composed of quadrate shal- 

 low punctures. Length, 1.4™™, 



