3O MEMOIRS ON THE COLEOPTERA. 



coarse, not close; color pale testaceous throughout, the abdomen feebly 

 and indefinitely infumate near the fourth tergite; head large, fully 

 three-fourths as wide as the prothorax, wider than long, parallel and 

 rounded at the sides, the eyes small, obliquely oval, not convex, with fine 

 isolated facets, at more than their own length from the base, the carinse 

 strong and entire; antennae pale throughout, short, strongly incrassate, 

 the second joint as long as the first, much longer than the third, which is 

 about as long as the next two combined, the latter each transverse, the 

 tenth about twice as wide as long, the last very short, subglobular, not 

 longer than wide; prothorax scarcely a third wider than long, widest 

 very near the base, the sides thence strongly converging and but slightly 

 arcuate to the apex, the angles obtuse and blunt; base strongly rounded, 

 unimpressed before the scutellum; elytra short, as wide as the prothorax, 

 subparallel, the suture but little more than three-fourths as long as the 

 latter, the apical sinuses extremely lateral, narrow and rather deep; 

 abdomen about as wide as the elytra, parallel, the fifth tergite not quite 

 so long as the third and fourth combined; hind tarsi not so elongate as 

 usual though with the first joint as long as the next three. Length 

 1.4 mm.; width 0.35 mm. California (Monterey). 



This species cannot be confounded with any other of the genus. 

 I am not able to actually count the joints of the anterior tarsi in 

 the single specimen at hand, but most of its general characters 

 seem to indicate Oxypoda as a probably correct assignment for it. 



The following is also a widely isolated form in the very short 

 elytra: 



Oxypoda subpolaris n. sp. Stout, parallel, rather convex, black or 

 piceous-black throughout, the legs pale brown; surface alutaceous, 

 finely and closely but not densely punctate, the vestiture inconspicuous; 

 head slightly transverse, three-fifths as wide as the prothorax, inflated 

 basally, the eyes small, obliquely oval, somewhat convex, coarsely faceted 

 and at twice their length from the base; antennae blackish, moderately 

 short, rather rapidly incrassate distally, the second joint as long as the 

 first, evidently longer than the third, fourth fully as long as wide, fifth 

 slightly transverse, the tenth one-half wider than long, the last stout, 

 ogivally pointed and rather longer than the two preceding; prothorax 

 large, convex, one-half wider than long, inflated and rounded at the 

 sides basally, thence gradually narrowed with less arcuate sides to the 

 apex, the base rounded with the angles very obtuse and rounded, the 

 surface very feebly impressed on the median line behind the centre; 

 elytra very short and transverse, parallel, distinctly narrower than the 

 prothorax, the suture not more than three-fifths as long as the latter, 

 the sinuses at apex broad and very shallow; abdomen nearly as wide as 

 the elytra, parallel, with rather thick margins, the fifth tergite but little 

 longer than the others; basal joint of the hind tarsi subequal to the next 

 three. Length 2.0 mm.; width 0.68 mm. Alaska (Nome), Fuchs. 



To be known readily by its parallel stout form, black coloration 

 and very short elytra. 



