CALIFORNIA ACADEMY OF SCIENCES. 323 



outer apical angles broadly rounded; together transversely, evenly and very 

 squarely truncate behind; inner angles right and very narrowly rounded; 

 disk at apex nearly one-half wider than the pronotum, nearty two-thirds 

 longer, distinctly longer than wide, depressed above, abruptly declivous along 

 the sides; margins narrowly reflexed; broadly and very feebly impressed along 

 the suture; coarsely, rather densely, evenly and asperately punctate. Ex- 

 posed segments of the abdomen five in number; together slightly longer than 

 wide, and slightly shorter than the elytra, finely asperate, very densely so at 

 base, becoming smooth and feebly alutaceous at apex; fourth visible segment 

 having in the middle of the disk and very near each side a large, very shallow, 

 rounded impression; border very wide, strongly iuclined. Legs rather stout, 

 moderately slender; first joint of the posterior tarsi as long as the next two 

 together, as long as the last; third and fourth short; claws short, slender, 

 simple. Length, 3.4 mm. 



California (Middle Sierras). 



In this species the structure of the maxillary palpus is un- 

 questionably the same as that of Lesteva, the third joint 

 being as long as wide, the fourth fully four times as long; 

 the first joint of the labial palpi is distinctly longer than the 

 second, the third longer than the first two together; as in 

 Vellica, the palpi are all terminated by small pale spongy 

 disks. 



PROTINUS Latr. 



P. salebrosus n sp.— Depressed, moderately robust; entire body, except 

 the tip of the abdomen beneath, black; the latter testaceous; antenna 

 piceous, two basal joints paler, testaceous; legs piceous, knees and tarsi 

 paler, testaceous; pubescence in the form of exceedingly minute setae, which 

 .are very sparsely and evenly distributed over the elytra and abdomen. Head 

 small, much wider than long; eyes rather small, very prominent, nearly hemi- 

 spherical; front with a deep oblique impression on each side near the eye; 

 surface confusedly irregular and scabrous; aDtenn;e very slender, one-half as 

 long as the body; two basal joints much more robust, the second slightly 

 shorter and more slender than the first; last three joints gradually and uni- 

 formly increasing in width, nearly of equal length. Prothorax widest at 

 two-thirds its length from the apex, where it is about two and one-third 

 times as wide as long; sides rather evenly and strongly arcuate posteriorly, 

 very feebly arcuate and moderately convergent anteriorly; base transversely 

 truncate, feebly sinuate toward each basal angle, but very slightly narrower 

 than the disk and just visibly wider than the apex; the latter broadly and 

 feebly emarginate; apical angles narrowly rounded; basal right and not at 

 all rounded, in the form of very minute teeth, the sides of the pronotum in 



