CavMdse fiom Mount Everest. 275 



eyes the new species is evidently a Nebria, and I do not 

 therefore propose a new genus for it : in view of its unusual 

 features^ however, I think a new subgenus is called for, and 

 I propose the name of Psilonebria, characterized by the 

 unusual reduction of the setae on the body (including 2 only 

 on the inner margin of the second joint of the labial palpi), 

 the strongly compressed joints 3-4 of the antennse, the sub- 

 moniliform tarsal joints, etc. 

 2 ex., ? ? . 



Bembidium (Plataphus) nivicola^ sp. n. 



Length 5'0 mm. ; width 2'1 mm. 



Black_, shiny, with metallic reHections i upper surface of 

 a deep, faintly bluish green, trochanters red. 



Head convex, with moderately deep nearly parallel frontal 

 furrows, diverging slightly behind and extending from the 

 front supraorbital to the clypeal pore, eyes rather flat, 

 antennae elongate, nearly reaching middle of elvtra; surface 

 smooth and polished, a little uneven at sides, impunctate. 

 Prothorax transverse, rather flat, but convex towards front 

 angles, a little wider than head, base truncate, its sides very 

 slightly oblique, the sides gently rounded and sinuate before 

 base, hind angles sharply rectangular, carina short but 

 distinct, at right angles to base ; median line short but 

 moderately deep, not reaching extremities, basal transverse 

 depression shallow, fovese wide but impressed at bottom; sur- 

 face of disk smooth and polished, basal area strigose, the striae 

 transverse a little in front of base, longitudinal along mar- 

 gin. Elytra ovate, flat, depressed behind base, half as wide 

 again as prothorax and as much longer than wide, contracted 

 towards base and widest behind middle, shoulders very 

 square, sides gently rounded, border reaching stria 5 ; 

 striae punctate, rather feebly impressed, 7 almost obsolete, 

 1 deep near apex, where it curves round to meet 2, apical 

 stria long and deep, joining 7, scutellary striole short, 

 intervals almost flat, 3 with the two pores on stria 3 ; sur- 

 face smooth but shagreened and less shiny than that of head 

 and prothorax. The microsculpture throughout approxi- 

 mately isodiametric (very much as in B. laticoUe^ Motsch.). 

 Beneath the surface is smooth, the metasternum unbordered 

 between the mesocoxae, ventral surface glabrous. 



Of same size as B. virens, Gyllh., but of a bluer green. 

 Head with furrows diverging slightly behind ; prothorax a 

 little longer, sides distinctly sinuate before base, the angles 

 consequently sharper, median line obsolete near base, 

 carina slighter, foveae less deep, base finely rugose ; elvtra 



18* 



