138 H. C. FALL. 



all those preceding; the intermediate joints not at all serrate. Eyes 

 rather small, rounded, and moderately prominent. Prothorax nar- 

 rower than the elytra, sides not margined. Elytra parallel and sub- 

 cylindrical. Presternum as long before the coxae as their diameter 

 or very nearly so, intercoxal process narrow but distinct. Mesoster- 

 num oblique, narrowly separating the middle coxa?. Hind coxae 

 feebly grooved, the coxal plates narrow and evanescent before 

 reaching the episterna. Ventral segments one and two longest, the 

 latter slightly longer than the former behind the coxae ; third and 

 fourth shorter, fifth nearly as long as the second. Legs moderate. 

 Tarsal joints one to four decreasing in length, first about twice as 

 long as wide, fourth not longer than wide, the fifth elongate, 

 inserted upon the upper surface of the fourth. Tibiae without dis- 

 tinct spurs. 



1. X. insularis n. sp. — Dark brown, legs and antennae paler; surface shin- 

 ing and sparsely pubescent. Head sparsely punctate, eyes a little more promi- 

 nent tban the sides of the prothorax. Antennae half the length of the body ; 

 first joint robust, oval, second smaller but similar, third to eightb subcylindrical 

 or slightly wider apically ; four, six and eight but little longer than wide ; three, 

 five and seven more distinctly elongate; ninth to eleventh oue-balf wider than 

 the preceding and nearly ( 9 ) or quite ( % ) as long as all the preceding united ; 

 ninth about equal to the three preceding; tenth scarcely as long; eleventh 

 slightly longer than the ninth. Prothorax nearly as wide as long, widest before 

 the middle, sides not margined, surface regularly convex and moderately closely 

 granulate-punctate, the granules becoming feeble towards the middle, the median 

 line smoother. Elytra distinctly wider than the thorax and about two and one- 

 half times as long, sides parallel or very faintly wider posteriorly, punctuation 

 simple, the punctures distant by about twice their own diameter at base, finer 

 and more distant at apex. Punctuation and pubescence of lower surface similar 

 to that above. Length 1.5-2.2 mm. 



California, Santa Catalina and San Clemente Islands. 



This species was discovered by me on Santa Catalina Island in 

 July, 1894, and specimens were subsequently found by Mr. Joseph 

 Grinnell on San Clemente. Specimens were shortly afterward sent 

 to several specialists for an expression of opinion as to its relation- 

 ship, but none were able to assign it a place except Mr. Schwarz, 

 who referred it provisionally to Dryophilus. This latter genus is, 

 however, more closely related to Ernobius by its contiguous front 

 coxae and differs furthermore from Xarifa in antennal and tarsal 

 formation and in its striate elytra; it has not thus far been recog- 

 nized in this country. In Xarifa alone, of all our genera, the tibial 

 spurs are entirely lacking, or at least indistinguishable from the 



