Worth American Rhyncliopliora. 271 



strongly rounded behind from above; humeri obsolete, broadly rounded; 

 disk rather smooth, shining; striae not impressed, composed of mod- 

 erate rounded, deeply impressed punctures which are separated by 

 from two to three times their own widths; tenth series very close to the 

 ninth at anterior third. Abdomen and legs more sparsely clothed with 

 long erect hairs. Length 5.3 mm. 



California (Monterey Co. 1). Mr. W. G. W. Harford. 

 The type specimen has the basal segments of the abdomen 

 "broadly and strongly impressed in the middle. 



EJLISSA n. gen. (Tanymecini). 



Form subcylindrical. Entire body covered with a thin, scabrous 

 waterproof crust, the squamose nature of which can only be detected 

 on the elytra and under surface. Head very wide; beak but slightly 

 longer than the head, much wider than long, narrowed toward apex; 

 the latter truncate and broadly trisinuate; surface nearly flat; alae very 

 feeble; scrobes small, lateral, beginning at the apex, where they are 

 narrow and deep, passing rapidly and arcuately downward in front of 

 and at a distance from the eyes, becoming broader and more shallow. 

 Antennae slender, sparsely setose, subapical; scape slender, abruptly 

 clavate, extending slightly upon the eye, as long as the funicle; the 

 latter slender, basal joint slightly clavate, longer than the second, the 

 latter longer than the third, outer joints but slightly enlarged; club 

 slender, elongate-oval, pointed. Mandibular scar feeble, narrow, 

 transverse. Mentum very large, completely filling the gular cavity, 

 flat, transverse, widest at apex, margin broadly arcuate. Eyes small, 

 rounded, coarsely granulated, free, prominent. Prothorax without 

 ocular lobes, but having a short fringe of long stiff setae. Elytra 

 not distinctly striate. Scutellum very minute, triangular. Abdomen 

 nearly flat; second segment fully as long as the third and fourth 

 combined, separated from the first by a broadly arcuate suture. Legs 

 rather slender; cotyloid surfaces of the posterior tibiae terminal, not 

 cavernous; tarsi rather slender; basal joint much longer than wide; 

 third very slightly wider than the second, bilobed; fourth as long as 

 the two preceding combined; claws slender, moderate in length, free. 

 Posterior coxae small, at the sides of the body, very widely separated. 



The mesosternal episternum is separated completely from the 

 elytra by the epimeron, and the metasternal episternum is 

 extremely narrow and linear, the suture very feeble. The genae 

 are rather deeply emarginate, and the anterior coxae contiguous. 



The species, which are subaquatic, may be separated as 

 follows: — 



