STAPHYLINID^E. 161 



apex, the converging sides evenly and moderately arcuate throughout, much 

 wider than the head and equal in width to the elytral base, the median line 

 very briefly and feebly impressed at base; elytra well developed, with evi- 

 dently diverging sides, the suture fully a third longer than the prothorax; 

 abdomen as in the preceding but with the fifth tergite longer, three-fourths 

 longer than the fourth. Length 1.4 mm.; width 0.35 mm. California 

 (Lake Tahoe). 



More conformable with the ordinary Atlantic species than with 

 zephyrina, but having well developed elytra. 



Colpodota fatigans n. sp. Elongate-fusoid, rather convex, alutaceous, 

 the punctures very fine, asperate and extremely close, the abdomen less dull 

 but rather closely and asperulately punctulate; color blackish-piceous, thr 

 elytra scarcely paler, the head and abdomen black, the latter slightly palee 

 at the extreme tip, the legs piceous-brown ; head convex, moderately trans- 

 verse and very slightly swollen at base, the eyes convex but at a little more 

 than their own length from the base; antennae blackish, rather long, slender, 

 only very feebly incrassate, the second joint a little longer and thinner than 

 the first and but little longer than the third, fourth and fifth slightly longer 

 than wide, the sixth as long as wide, the tenth a little wider than long, the last 

 pointed, slender and scarcely as long as the two preceding; prothorax rather 

 large and convex, only moderately transverse, subparallel, the sides broadly 

 rounded, the base rounded almost evenly, the truncate apex a little narrower, 

 the basal angles indistinct; surface not evidently impressed, much wider 

 than the head and as wide as the elytral base; elytra rather short, the sides 

 but feebly diverging, the suture equal in length to the prothorax; abdomen 

 slightly narrower than the elytra, gradually and moderately tapering to the 

 somewhat obtuse tip, with the sides feebly arcuate, becoming subparallel 

 basally, the fifth tergite fully one-half longer than the fourth. Length 1.65 

 mm.; width 0.37 mm. California (Sta. Cruz). 



Easily identifiable by the very fine and dense punctures, shorter 

 elytra and slender antennae. 



Colpodota torvula n. sp. More parallel in form, rather convex and some- 

 what shining, the punctures fine, not conspicuous, denser and asperate on 

 the elytra, the abdominal reticulation strong, generally transversely radiating 

 from the fine punctures; color piceous-black, the elytra but just visibly paler, 

 the legs pale brown; head rather large, convex, wider than long, just visibly 

 swollen at base, the eyes at a little more than their own length from the base; 

 antennae blackish, slightly paler basally, rather short, slender, slightly in- 

 crassate, the second joint distinctly shorter than the first and much longer 

 than the third, the fourth nearly a third wider than long, the outer joints 

 a little larger but similar to the fourth, the last gradually and finely pointed 

 and as long as the two preceding; prothorax moderately transverse, distinctly 

 wider than the head and fully as wide as the elytral base, the base almost 

 evenly rounded, but very little wider than the apex, the sides subparallel 

 and rounded, unimpressed ; elytra only moderately abbreviated and with only 

 slightly diverging sides, the suture nearly a third longer than the prothorax; 

 T. L. Casey, Mem. Col. I, Sept. 1910. 



