214 Memoirs on the Coleoptera 



antennae very slender, long, fully half as long as the body; eyes 

 large, moderately convex; pro thorax a fourth wider than long; 

 sides subevenly and feebly arcuate, narrowly reflexed anteriorly, 

 broadly explanate basally, the basal angles slightly obtuse and 

 rounded; apex sinuate, much narrower than the base; surface with 

 feeble ruguliform transverse lines medially, the anterior impression 

 barely traceable; elytra oblong-oval, rather more than one-half 

 longer than wide, a third (cT) to two-fifths (9) wider than the 

 prothorax, gradually rounding posteriorly at the sides from before 

 the middle, ogival at tip; striae very fine, the intervals fiat; sub- 

 scutellar puncture distinct; dorsal punctures four; anterior male 

 tarsi strongly dilated; met-episterna evidently though not greatly 

 longer than wide. Length (d^ 9) il. 0-12.0 mm.; width 4.5-4.9 

 mm. Guadalupe Island, off the coast of Lower California. Six 

 specimens guadalupensis Csy. 



Body smaller, of the usual size characterizing the west coast species. . . 5 



5 — Antennae filiform, the third and fourth joints much longer than the 

 fifth 6 



Antennae almost as filiform, but with joints three to five differing but 

 little in length 7 



6 — Body elongate-suboval, moderately convex, bright testaceous, the 

 legs more flavate; elytra blackish-piceous; surface shining, the 

 elytra opaculate; head scarcely at all longer than wide, slightly 

 over half as wide as the prothorax, the eyes moderate, rather feebly 

 convex; antennae moderately slender, only a little longer than the 

 head and prothorax; last palpal joint somewhat thicker than the 

 third; prothorax rather large, fully a fourth wider than long, the 

 sides subevenly and somewhat strongly arcuate to the narrowed and 

 moderately sinuate apex having obtuse angles, a little less converging 

 or arcuate basally, the angles slightly obtuse, narrowly rounded; 

 surface more evenly convex than in the three preceding, the sides 

 rather abruptly well reflexed, but becoming only slightly more 

 broadly so basally, the transverse impressions subobsolete; elytra 

 evenly oblong-oval, slightly over one-half longer than wide, scarcely 

 a third wider than the prothorax; striae extremely fine, less so on 

 the declivity, the intervals perfectly flat throughout the length; 

 dorsal punctures three to four; scutellar puncture distinct but small, 

 remote from the scutellum and behind the base; female as usual 

 with the last ventral strongly rounding and with a single puncture 

 at each side as in the male. Length (9 ) 9.0 mm.; width 3.8 mm. 

 California (San Diego). A single example, taken by the writer. 



tenuistriatus n. sp. 



Body nearly similar in form and coloration but with the elytra piceous- 

 brown, with paler suture and reflexed edge, and with its surface 

 much more shining, scarcely less so than the prono.tum; body in 

 general very pale testaceous; head slightly more than half as wide 

 as the prothorax, narrower and more elongate than in tenuistriatus, 

 and with the eyes smaller and notably more prominent; antennae 

 very slender and longer, fully half as long as the body; prothorax 

 smaller, more quadrate, only very little wider than long, the broadly 



