508 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [YolY. 



nent; front with a transverse impression interrupted at the niiclcTle, so 

 as tO;form a very small crest. Prothorax less shining, not longer than 

 wide, slightly narrowed in front; sides distinctly margined; anterior 

 transverse impression rugose. Elytra cylindrical, striae nearly complete, 

 not coarsely punctured, punctures obsolete toward the tip ; third inter- 

 space without dorsal punctures ; basal puncture large at base of first 

 and second strise ; marginal stria not extending along the base. Front 

 tibiae with two small teeth on outer edge; terminal digitation slightly 

 curved ; apical spur longer, much curved. Length, 2.8'"'". 



Garland, Colo. Seems to resemble D. curvispinus Putz, which is un- 

 known to me, but differs by darker color and hj head without deep 

 transverse impression; differs from JD. pumilus Dej. {D. dentiger and 

 falciger Lee.) by more elongate form, less shining thorax, and less 

 strongly punctured elytral striae. The form is almost as slender as D. 

 fiUformis Lee. 



Harp ALUS ALiENUS. — Resembles greatly in appearance Anisodactylus 

 nigrita, black shining, antennae, ijalpi, and front tarsi piceo-rufous. Pro- 

 thorax nearly twice as wide as long, emarginate in front, truncate and 

 finely margined at base ; sides rounded, hind angles obtuse rounded at 

 tip; side margin depressed and punctulate, wider toward the base, 

 where it is confluent with the basal impressions, which are large, shallow, 

 and punctulate ; dorsal line fine. Elytra ( ^ ) shining, striae deep, inter- 

 spaces flat, dorsal puncture distinct; ventral segments without acces- 

 sory punctures or setae ; middle of first and second segments punctulate. 

 Length, 12""". 



Veta Pass, one <? ; a very distinct species, unlike any other in our 

 fauna, known to me. 



Bembidium STABILE. — Depressed, greenish black; antennae brown, 

 base, palpi, and legs testaceous. Prothorax scarcely wider than long, 

 somewhat narrowed behind ; sides strongly margined, rounded, subsinu- 

 ate near the basal angles, which are rectangular and feebly carinate; 

 basal impressions deep, sx)arsely punctured ; dorsal line deep. Elytra 

 with 6 rather finely punctured striae, gradually shorter, and obliterated 

 behind; dorsal punctures on third stria; marginal stria and groove 

 entire, punctures very few. Length, 6-7™™. 



La Veta, Colo. ; found also in San Diego County, Cal., by Mr. O. li^T. 

 Sanford. This species is related to B. striola, but is much larger; the 

 sides of the prothorax are less sinuate, the hind angles much less promi- 

 nent, and, finally, the apex of the elytra is not pale. As nothing allied 

 to this species has occurred in the more northern regions, I am disposed 

 to regard it as one of the preglacial survivals of the tertiary fauna. 



Bembidium rubiginosum. — Piceo-rufous, with a slight metallic 

 reflexion; frontal impressions normal, not very deep; eyes rather large. 

 Prothorax quadrate, a little wider than long, slightly narrowed behind, 



