Casey — Observations on the Stapkylinidae. 165 



twice as deep as wide and about a fourth as long as the seg- 

 ment. The species languida Grav., and cognaia Makl., are 

 unknown to me at present. 



Eucharina n. gen. 



This genus, though having a type of pronotal sculpture not 

 unusual in Baryodma^ differs profoundly in the very coarsely 

 spinose anterior and middle tibiae, the former, especially, being 

 much shorter, more dilated and somewhat arcuate, in its more 

 abbreviated mesosternal and longer, more narrowly angulate 

 metasternal process and very small antennae, with unusual 

 relative development of the second joint. It also differs in 

 its extremely coarse sculpture and in having the first four 

 tergites impressed at base, gradually less strongly, instead of 

 three as in Baryodma. The hind tarsi are longer than in 

 that genus, about equal in length to the tibiae, the latter 

 being normally and very sparsely setose and wholly devoid of 

 the very coarse spinules of the other two pairs. The species 

 are only moderately numerous and are confined wholly to the 

 sea-beaches of the Pacific coast from Alaska to Lower Cali- 

 fornia. The five indicated by material before me may be dis- 

 tinguished among themselves as follows: — 



Elytra at the sides distinctly longer than the sides of the prothorax; elytral 

 scQlptnre denser 3 



Elytra at the sides not longer than the sides of the prothorax; species 

 southern in range; pubescence coarse but sparse and inconspicuous. 4 



2 — Form very stout, parallel, the prothorax distinctly transverse. Body 

 deep black throughout, the legs and antennae piceous, polished ; head 

 one-half to three-fifths as wide as the prothorax, with a few very coarse, 

 unevenly and remotely scattered punctures, the antennae only about a 

 third longer than the head, gradually and moderately Incrassate to the 

 tip, the subapical joints transverse, the eleventh barely as long as the 

 two preceding combined, conoidal, the second joint as long as the next 

 two together; prothorax large, one-half wider than long, the sides 

 distinctly converging from base to apex and only moderately arcuate ; 

 sulci deep and strongly, irregularly punctured as usual, the surface 

 elsewhere having very few coarse punctures, aggregated especially 

 toward the sides near the middle, with a few at lateral fourth near the 

 base and also minutely, rather closely punctulate throughout; elytra at 

 the sides much longer than the sides of the prothorax, the suture three- 

 fourths as long as the median line, the punctures very coarsely rugose 



