l6o CASEY 



feeble, sparse and faintly muricate, more granuliform on the de- 

 clivity though still feeble ; epipleurae broader medially than at 

 base, rapidly becoming narrow posteriorly ; prosternal process 

 moderately constricted ; abdomen finely, sparsely punctate, the last 

 segment not at all more coarsely or closely so ; basal joint of the 

 hind tarsi but little longer than the next two combined. Length 

 2.8-3.4 mm. ; width 1.65-1.85 mm. (oT, ?). Lower California. 



maritima Csy. 



Form more broadly and more regularly subelliptic, less oblong, larger 

 in size, shining, pale flavo-testaceous in color, similar in pubes- 

 cence and in the bristling setae of the head and sides of the body ; 

 head relatively a little smaller, otherwise nearly similar; prothorax 

 almost three times as wide as its median length, the lateral length 

 exceeding the median much more markedly than in marit ima^ the 

 sides evenly and rather strongly arcuate, more converging from 

 near the base to the apex than in the preceding, the surface almost 

 similarly sculptured ; elytra at basal third fully a sixth wider than 

 the prothorax, inflated basally, more narrowed thence posteriorly 

 and more narrowly rounded apically than in maritima, the sides 

 more arcuate; surface nearly similar though somewhat more 

 strongly muricate, approaching more closely the sculpture of 

 Ccelus ; under surface and legs similar, the anterior tibiae with very 

 long erect setae internally, the posterior with shorter but more 

 numerous and very stiff erect setas externally and a few much less 

 conspicuous internally. Length 3.8 mm.; width 2.2 mm. (?). 

 Lower California pallens n . sp . 



The material serving for the above descriptions was collected 

 by Mr. G. W. Dunn in various unrecorded parts of Lower 

 California. 



The species above defined, as well as those of Ccelus, Coni- 

 ontis and in fact quite generally throughout the subfamily, differ 

 from each other not so much by reason of any clearly defined 

 peculiarities of structure, as in a certain characteristic habitus 

 due to the summation of many minor features, such as general 

 form and outline, size, sculpture and vestiture. The study of 

 large series, where available, shows that this composite facies 

 is as persistent as elsewhere in the Coleoptera, and, in my 

 opinion, the various described forms are constant and true- 

 breeding, conforming to the usual definition of a species. 



