144 AMERICAN COLEOPTERA 



worthy of note that both these species depart from their nearer allies 

 and agree with Revefoeria in the densely punctate lower surface. 

 ( Hher details of structure may be found in the following description : 



R. csilifoi'iiica* sp. nov. — Oval, moderately convex, glabrous, moderately 

 shining, color varying from ferruginous to piceous brown, legs rufous. Head 

 subquadrate, densely punctate, with costse or impressions; labrum subtruncate 

 in front, embracing the epistoma at sides; epistoma strongly transverse, sepa- 

 rated from the front by a distinctly impressed, feebly arcuate line. Antennae 

 not quite reaching the hind angles of the pronotum, 11-jointed, club 3-jointed ; 

 joints 3-8 elongate, subequal in width, the third about twice as long as wide, the 

 following joints gradually very slightly less elongate; club rather abrupt, the 

 first two joints about as wide as long, the last almost as long as the two preceding 

 together; eyes rather small, not very prominent, situated at a little less than 

 their length from the antennae; tempora about one-half the lengtb of the eyes. 

 Prothorax but little wider than the head, nearly square, the sides parallel and 

 nearly straight; surface densely, rather coarsely punctate, disk without costa* or 

 fovea?, but with a rather shallow transverse basal impression, which is a little 

 deeper at the middle. Scutellum small but distinct. Elytra ovate, convex, but 

 not at all gibbous : about one-half wider than the prothorax: margin distinctly 

 but not broadly explanate, base slightly wider than the contiguous base of the 

 prothorax, basal angles a little obtuse ; sides nearly straight and divergent for 

 about one-fourth their length, thence subparallel for a little and gradually more 

 Strongly arcuate to apex. Each elytron bears about twelve lines of somewhat 

 coarse punctures, which are more or less confused toward the base, but become 

 fairly regular and a little finer apically. Under surface coarsely, densely punc- 

 tate anteriorly, the abdomen gradually more finely and less closely toward the 

 apex. Metasternum at sides subequal in length to the first ventral segment, but 

 much shorter than the latter along the median line; episternal sutures nearly 

 obliterated. First ventral at sides subequal to the three following segments 

 united, the intercoxal process broad, truncate; ventral sutures normally deep. 

 Front coxas separated by about two-thirds their own width, middle coxa- by 

 nearly their own width. Legs moderately stout; the tibia' a little arcuate 

 toward the base; first joint of tarsi slightly longer than the second, the third 

 equal to the first two combined. (PI. IV, fig. 38). Length 1.25 1.5 mm. 



Huh. — California (Los Gatos — Hubbard and Schwarz; Ojai 

 Valley). 



Specimens from the latter locality were taken by me in March, 

 and if I remember correctly, occurred together with Metophthalmus 

 rudis in a dry woody fungus. 



Californicus differs greatly from genei in its perfectly glabrous 

 surface, non-gibbous less broadly oval and much less coarsely punc- 

 tate elytra and larger scutellum. 



Tribe IV. Corticariini. 

 Briefly diagnosed, this tribe, as represented in our fauna, is char- 

 acterized by the epistoma being on the same plane with the front 



