STAPHYLINID^E 131 



obsolete; elytra distinctly transverse, with diverging and nearly straight 

 sides, at base a fifth or sixth wider, the suture fully a fourth longer, than 

 the prothorax; abdomen parallel, much narrower than the elytra, with 

 straight sides, the equal fourth and fifth tergites each longer than one 

 to three, the basal impressions of which are rather narrow but distinct 

 and subequal. Length 2.1 mm.; width 0.43 mm. California (Jount- 

 ville, Napa Co.). 



Recognizable by its small size, somewhat slender form, transverse 

 prothorax and elytra, rather small and subtriangular head and 

 slender, moderate antennae; the type is a mature example of the 

 species represented by the immature one alluded to in my last 

 paper and is from the same locality. 



Paradilacra deserticola n. sp. Moderately slender, parallel, evidently 

 convex, not dull, feebly shining, the abdomen evidently so; color deep 

 black throughout, the legs black, picescent distally; punctures minute 

 and close but not dense, the minute ground sculpture much feebler than 

 usual, the abdominal punctures close but clearly separated; head wider 

 than long, well developed, four-fifths as wide as the prothorax, only just 

 visibly swollen basally, the eyes at three-fourths their length from the 

 base; antennae piceous, rather slender, feebly incrassulate distally, only 

 moderately long, the second joint longer than the first, third three- 

 fourths as long as the second and more slender, four to six slightly elon- 

 gate, seven to ten a little shorter than wide, the last about as long as the 

 two preceding; prothorax fully a third wider than long, the sides broadly 

 rounded anteriorly, feebly converging and nearly straight from scarcely 

 before the middle to the base, the median line feebly impressed in about 

 basal half; elytra moderately transverse, parallel, a fourth or fifth wider, 

 the suture a fourth longer, than the prothorax; abdomen parallel, with 

 straight sides, much narrower than the elytra, the fifth tergite two-fifths 

 longer than the fourth, the first distinctly though narrowly, the second 

 scarcely and the third not visibly impressed transversely at base. Length 

 1.8 mm.; width 0.4 mm. Nevada (Elko), Wickham. 



May be known by its rather narrow form and small size, as well 

 as by the antennal and abdominal structure, less dull lustre and 

 less than usually pronounced sculpture. 



Metaxya Rey. 



This is a large genus in the American fauna and the species as- 

 signable to it, though agreeing in general structural peculiarities, 

 present great diversification in form, size and other characters 

 probably indicative of subgeneric groups. 



Metaxya albanica n. sp. Not parallel, feebly convex, subalutaceous, 

 the head and abdomen shining, the micro-reticulation small and strong, 



