30 CALIFOKNIA ACADEMY OF SCIENCES. 



decidedly from anytliing hitherto described; the head is 

 small, triangular, with very large, coarsely granulated eyes, 

 robust antennae and with an entirely different structure of 

 the labrum. The species are rather robust, and the integu- 

 ments throughout are strongly alutaceous, this appearance 

 being produced upon some portions of the body by an ex- 

 cessively minute and dense punctuation, and upon others by 

 a correspondingly minute and dense granulation. The head 

 in both of the forms here described is blackish, the remain- 

 der of the body, legs, labrum and antennae being flavate or 

 clouded slightly with brownish ; they are very rare although 

 the species may perhaps be relatively more numerous. 



24 — ]y[, alutacea i^- sp. — Rather robust; head fusco-castaueous or nearly 

 piceous-black; pronotum aud abdomeu concoloroiis, pale castaneous; elytra 

 still paler, brownish-testaceous; legs uniformly flavate; antenme uniformly 

 pale reddish-flavate throughout; palpi flavate; pubescence fine, moderately 

 dense, coarser aud more conspicuous on the elytra; integuments alutaceous. 

 Head mode»ate, as wide as long; sides parallel, short and distinctlj^ arcuate; 

 base truncate, angles broadly rounded; eje% very large, at scaicely their own 

 lengths from the basal angles, not prominent, rather coarsely granulate; 

 epistoma rather strongly produced, sides strongly convergent toward the 

 apex, truncate anteriorly; antennal tubetculations rather strong, small; sur- 

 face moderately convex, extremely minutely and densely punctate, with a 

 very narrow median impuuctate line, having two widely distant, annular, 

 setigerous punctures between the eyes and one behind each antenual tuber, 

 culation, also several small ones near and behind the eyes; antennas rather 

 robust, slightly longer than the head and prothorax together, basal joint 

 about three times as long as wide, second two-thirds as long as the third, 

 nearly as long as the fourth, joints four to ten decreasing in length, the latter 

 scarcely as wide as long, eleventh ovoidal, obtusely acuminate, much shorter 

 than the two preceding together. Prothorax very slightly wider than long, 

 sub-equal in width to the head; sides very feebly convergent from apex to 

 base, the latter narrowly truncate in the middle; apex broadly and rather 

 feebly arcuate, narrowly and feebly sinuate in the middle; apical and basal 

 angles equally and very broadly rounded; disk transversely and very feebly 

 convex, extremely minutely and densely punctate; punctures slightly more 

 sjjarse near the middle, where there is a very narrow and obscure median 

 impunctate line. Elytra at base very slightij^ wider than the pronotum; sides 

 nearly parallel, very slightly arcuate; together broadly and feebly sinuate at 

 apex; outer angles rounded; disk quadrate, one-fourth longer than the prono- 

 tum, feebly convex, feebly impressed on the suture toward base, the suture 

 not elevated, very minutely, evenly and densely granulose; the granulations 



