298 PROCEEDINGS OF THE NATIONAL MnSFlUM. vor. nri. 



8 to 5 subequal and a little longer than the seventh ; 8 about as wide 

 as loig; 9 to 11 subequal, about six times as long as wide, the ninth 

 subequal to the five or six preceding united. In the female joints 

 2 to 8 about subequal, the eighth slightly shorter than the others; 



9 to 11 subequal, the ninth as long as the three preceding united. 

 Prothorax as wide as the elytra and distinctly twice as wide as long ; 

 sides strongly arcuate and broadly margined, front angles rounded, 

 hind angles not defined; surface densely granulate-punctate in the 

 male, not quite as densely in the female, distinctly transversely im- 

 pressed across the middle of disk in the female, and with only shal- 

 low depressions on each side of the median lino in the male. Elytra 

 parallel, about twice as long as wide, punctuation slightly finer than 

 that of the prothorax, except near the base. Metasternum and al> 

 domen finely and densely punctured. Prosternum short before the 

 coxae. Middle coxae contiguous. Basal joint of tarsi subequal in 

 length to the next two united. Sixth ventral deeply cleft in the 

 male, and in the female vvith a deep, broadly rounded emargination 

 at apex. Length, 4 to 5 mm. 



Ilahitat. — Mutau Creek, Ventura County, California. Described 

 from 16 specimens recorded under Bureau of Entomology number 

 Hopk. U. S. 2778, collected June 4, 1904, by Dr. A. D. Hopkins, 

 and reared from bark and outer wood of branches of recently killed 

 Pinus jejfreyi. 



Type.— Co^t. No. 21425, U.S.N.M. 



This species resembles E. fssuratus Fall and E. montanus Fall, but 

 seems clearly distinct. From the former it differs in having a dis- 

 tinctly wider prothorax and the sixth ventral segment more broadly 

 emarginate in the female ; from 7)iontamis it may be separated by its 

 granulate-punctate head and prothorax, and by having the pubes- 

 cence longer and sparser. 



EKNOBIUS CHAMPLAINI, new species. 



Very elongate, black in both sexes, the tibiae and tarsi paler, 

 pubescence short and sparse and of a cinereous color. Head across 

 the eyes equal in width to the basal portion of the prothorax ; surface 

 finely, densely granulate-punctate; the eyes only moderately large, 

 the width of the front between them about two times their vertical 

 diameter in the male and about three times their vertical diameter 

 in the female. Antennae 10-jointed, about one-half the length of the 

 body in the male, somewhat shorter in the female; in the male joint 

 2 oval, distinctly wider than 3 ; 3 to 5 subequal, about two times as 

 long as wide ; 6 and 7 subequal, about as wide as long ; 8 to 10 nearly 

 subequal, about six times as long as wide, the eighth as long as all 

 the preceding joints united. In the female joint 2 oval, only a little 

 wider than 3; 3 to 7 about subequal in length, the seventh slightly 



