STAPHYLINID^; 219 



in the male, the sexual characters appearing solely at the tip of the 

 sixth ventral plate, which in the male is broadly angulate and with 

 a small, circularly rounded emargination at the angle; in the female 

 it is merely broadly rounded. 



The following was confounded with attenuata under my original 

 description of that species: 



Gyronychina longipennis n. sp. Very slender, rather convex, shining, 

 testaceous, the head dusky; punctures very fine and sparse throughout; 

 micro-reticulation feeble, much larger and stronger on the abdomen, 

 especially toward tip, polygonal as usual; pubescence coarse, not dense, 

 pale and rather long; head as wide as long, convex, the eyes slightly 

 prominent, at three-fourths more than their own length from the base, 

 the tempora less prominent, straight and parallel behind them for the 

 length of the eye, then rapidly arcuato-converging to the neck, which 

 is two-thirds as wide as the head; antennae missing in the type but prob- 

 ably nearly as in attenuata, the outer joints transverse, the third shorter 

 than the second; prothorax fully as wide as the head and a little shorter, 

 very slightly wider than long, convex, widest at apical third, where 

 the sides are rather broadly rounded, thence very feebly converging 

 and straight to the obtuse basal angles, the surface not definitely im- 

 pressed; elytra parallel, with straight sides, evidently longer than wide, 

 nearly a third wider and three-fifths longer than the prothorax, rather 

 flat, the apices feebly sinuate laterally, with the flanks slightly projecting 

 posteriorly as usual; abdomen long, parallel, distinctly narrower than 

 the elytra, the fifth tergite elongate. Length 1.75 mm.; width 0.37 mm. 

 California (Calistoga, Napa Co.). 



Differs from attenuata in its still more slender form, relatively 

 narrower and more elongate elytra and sparser punctulation, 

 especially of the head, the basal angles of the latter less broadly 

 rounded. In the type of attenuata, from Paraiso Springs, Monterey 

 Co., the sixth ventral plate projects medially, the apex of the very 

 obtuse lobe apparently narrowly truncate; it is therefore a male, in 

 all probability, and its relatively less elongate elytra would indicate 

 that it could not be the male of longipennis, even if the type of the 

 latter were a female, for the rule is that the elytra of the female are 

 shorter than those of the male. The sixth ventral is strongly 

 retracted in the type of longipennis and therefore cannot be ob- 

 served ; it is probably a male however. 



Alisalia n. gen. 



In addition to the characters previously stated, the numerous 

 minute species of this genus have the eyes less developed than usual 



