LECONTE ON ROCKY MOUNTAIN COLEOPTERA. 451 



uate. Abdomen with accessory seta, 1st segment punctured behind 

 the coxie. Length S.S™'" (0.35 inch.) 



Garland, Col., (8,000 feet) ; one c?. Resembles H.furtiviis, but differs 

 by the hind angles of the prothorax being rectangular and not rounded. 



5. Bembidium BOWDiTcnii, n. sp. 



Dark bluish or bronze, not shining. Prothorax wider than long, nar- 

 rower in front, sides broadly rounded, broadly sinuate behind the mid- 

 dle ; hind angles divergent, base obliquely truncate each side, basal 

 impressions small. Elytra wider than the prothorax, basal carina short, 

 making an acute angle with the margin ; strise strongly punctured be- 

 fore the middle, fine and impunctured towards the tip : interspaces flat, 

 dorsal punctures two, situated near the 3d stria. Beneath greenish- 

 bronze, shining. Length 5.5°^"^ (0.22 inch). 



Green Eiver City, Wyoming, (6,000 to 7,000 feet). Closely allied to B. 

 nitiduliim, but differs from it by the prothorax being not narrowed 

 behind, and having the hind angles divergent. 



It is interesting to observe that the difference in the prothorax 

 between this species and B. nitidiilum is precisely that exhibited in 

 the allied group, having impressed quadrate elytral spots between B. 

 Lorquinii and impressum. 



I feel much pleasure in dedicating this species to Mr. F. C. Bowditch, 

 to whom we owe the first useful material for the investigation of the 

 Alpine Coleopterous fauna of the interior of the continent. 



G. Bembidium scudderi, n. sp. 



Depressed, brownish-black, slightly bronzed, antennse and legs paler 

 brown. Prothorax wider than long, rounded on the sides, narrowed, 

 but scarcely sinuate behind the middle ; hind angles rectangular, promi- 

 nent, very finely carinate ; dorsal line deep, basal impressions wide, 

 finely rugose. Elytra elongate-oval, a little wider than the prothorax, 

 striae fine, closely punctulate in front, smooth behind : interspaces flat, 

 3d with two dorsal punctures. Length 5.3'^'^ (0.20 inch). 



Salt Lake Valley (4,300 feet). Belongs to the section JSTotaphus, and 

 easily recognized by the elytra having no testaceous markings, with the 

 unusual number of three dorsal punctures, and by the form of the pro- 

 thorax. 



This species is named after Mr. S. H. Scudder, whose extensive 

 researches in Orthoptera and Lepidoptera are world-known. The object 

 of the journey, in which he was accompanied by Mr. Bowditch, was to 

 explore the clay beds of Tertiary age, which abound in fossil insects. 

 The large collection obtained will be described by him in future num- 

 bers of this Bulletin. 



The elevation at which the specimen was collected is below the limit 

 treated of in this memoir ; but as it has not occurred elsewhere, it is 

 I)robably not confined to the inferior levels. It is, moreover, a very 

 interesting species, and well deserving attention. 



