8o MEMOIRS ON THE COLEOPTERA. 



abdomen black, the latter barely perceptibly paler at apex, the elytra moder- 

 ately pale, clouded near the scutellum, the legs very pale; head nearly as long 

 as wide, the long parallel tempora arcuate and a little more prominent than 

 the eyes, the carinae fine, extending only a little beyond the middle; antennse 

 dark brown, rather short, gradually and distinctly incrassate, the outer 

 joints rather transverse, the last oval, rapidly pointed and not as long as 

 the two preceding, the third shorter than the second, both much elongated; 

 prothorax very moderately transverse, distinctly wider than the head and 

 obviously narrower than the elytra, somewhat prominently rounded at the 

 sides and widest near apical third, thence feebly narrowing with straighter 

 sides to the base, the median line wholly unimpressed, the basal impression 

 moderate; elytra moderately transverse, the suture nearly a third longer 

 than the prothorax; abdomen narrower than the elytra, parallel, the fifth 

 tergite, as usual, longer than the fourth, the sixth ventral plate in the type 

 broadly arcuate at apex; metasternum not advancing between the coxee 

 and feebly arcuate, the longitudinal sunken ridge between the coxae as usual 

 very acute. Length 2.6 mm.; width 0.6 mm. Nevada (Reno). 



I obtained a single specimen of this species near the Truckee River. 

 It is not closely related to any other known to me, being readily 

 identifiable by the rather short antennae, with transverse penulti- 

 mate joints and other characters as stated. 



Metaxya adjuncta n. sp. Moderately slender and convex, rather shining, 

 the punctures very fine, closer and slightly more asperulate on the elytra, 

 the vestiture somewhat scanty and inconspicuous; color black, the elytra 

 very dark rufo-piceous, the legs pale flavate; head but little wider than long, 

 the eyes at more than their own length from the base, the tempora not more 

 prominent, parallel, then broadly rounding to the base, the carinae fine, not 

 entire; antennae rather short, black, gradually and evidently incrassate, 

 the outer joints distinctly transverse, the last about as long as the two pre- 

 ceding, the second longer than the third; prothorax evidently wider than 

 long, parallel and nearly straight at the sides, the latter slightly converging 

 and rounding anteriorly, only a little wider than the head and obviously 

 narrower than the elytra, the basal impression distinct, extending slightly 

 along the median line; elytra large, wider than long, much longer than the 

 prothorax; abdomen slightly narrower than the elytra, apparently narrowing 

 very slightly apically, the small sixth ventral plate in the type evenly semi- 

 circular; metasternum forming a broad but evident angle. Length 2.1 mm. ; 

 width 0.55 mm. California (Lake Tahoe). 



A single example, probably female, of this small species was 

 taken by the author twenty-four years ago. It is not closely related 

 to any of the preceding. 



Metaxya fatua n. sp. Nearly parallel, rather shining, piceous, the head 

 darker, the abdomen largely black subapically, the legs very pale, the an- 

 tennae dark brown, paler basally; pubescence rather coarse and distinct 

 but not dense; head well developed, rather transverse, the tempora fully as 



