H. C. FALL. 



16! 



scarcely as wide as long. Pro-thorax rotundate cordate, not much wider than 

 long, about three-fifths as wide as the elytra; side margin crenulato-denticulate; 

 surface rather closely and coarsely punctate ; basal fovea moderately deep and 

 nearly round. Elytra oblong, subovate, striae .faintly impressed, punctures 

 moderate, finer on the interspaces. Sterna not closely punctate, rather finely 

 and sparsely toward the middle of the metasternum; abdomen very finely and 

 sparsely punctulate. Metasternum longer between the coxai than the first ven- 

 tral segment at sides; middle coxae distant by about half the coxal width. Legs 

 moderate. (PI. V, fig. 53). 



Male. — Front and middle tibife sinuate and mucronate within at tip ; fifth ven- 

 tral not impressed. 



Female.— Tibiae simple; fifth ventral with a very faint and vague median im- 

 pression. 



Length 1.7-2.1 mm. 



Hub. — Lake Superior (type); Massachusetts (Lowell— Blanch- 

 ard); Colorado (Garland— Schwarz; Leadville and Brecken ridge, 

 9000-11000 ft.— Wickham); Washington. The very dark color, 

 narrow thorax and nearly or quite unimpressed fifth ventral in both 

 sexes, are the characters of especial service in identifying this spe- 

 cies. It is evidently confined to the colder parts of our territory. 



C. temiipes sp. nov. — Elongate, depressed, pale rufotestaceous; pubescence 

 pale, not conspicuous, recumbent. Head finely, feebly and sparsely punctate ; 

 eyes very large, separated on the front by barely twice their longest diameters 

 as viewed from the front; tempora about one-fifth the length of the eye. An- 

 tennas moderate in length, eighth joint subglobular, ninth and tenth a little 

 transverse. Prothorax only slightly wider than the head, not very strongly 

 transverse, widest just in front of the middle, base very slightly narrower than 

 I lie apex, margin rather coarsely denticulate, surface finely, sparsely punctate 

 and with a somewhat vague transverse basal impression. Elytra about one-half 

 wider than the prothorax, sides parallel but broadly arcuate, apex obtusely 

 rounded ; striae not impressed, punctures rather fine. Beneath finely, sparsely 

 punctate, the abdomen minutely so. Metasternum longer than the first ventral 

 segment; middle coxae distant by one-half the coxal width. Legs very slender, 

 the femora sublinear. (PI. V, figs. 54, 54« and 54&). 



Male.— Front and middle tibiae just visibly sinuate within at tip, the mucro at 

 the interior angle, very small on the front, and scarcely visible on the middle 

 tibiae; fifth ventral fully one-half longer than the fourth, and rather strongly 

 rounded at the apex ; surface not impressed. 



Female. — Unknown. 



Length 1.7 mm. 



Hab. — California (San Benardino Mts.). One example in my 

 collection. 



The small size, depressed form, pale color, large eyes, strongly 

 denticulate thorax, which is scarcely wider than the head, and espe- 

 cially the very slender femora, are the chief characteristics of this 

 very distinct species. 



TRANS. AM. ENT. SOC. XXVI. DECEMBER, 1899. 



