Goleopterological Notices^ VII. 355 



Fourth joint of the maxillary palpi obtuse, obscure or fused rigidly to or 



within the apex of the third, varying greatly in form, never acuminate 



or subulate, always spongiose in structure and sometimes wanting. 



Hind coxse transverse, extending to the sides of the body, rather widely 



separated ; antennae widely separated at base. 



Head deeply inserted and strongly deflexed, the neck invisible; eyes 



basal, frequently wanting; elytra entire or subentire, more or less 



rounded at tip; prosternum very short and deeply emarginate before 



the coxai; scutellum large and distinct Cephenniini 



Head exserted and but feebly inclined, the neck exposed and constricted; 

 eyes subbasal; third palpal joint smaller and more coarsely pubes- 

 cent. 

 Third palpal joint stouter, oval, obliquely truncate at tip, the trunca- 

 ture oval and spongiose, the fourth wanting; prosternum short and 



deeply emarginate before the coxae Ascydmini 



Third joint subobconic, the fourth minute and indistinct at its apex; 

 prosternum rather long and well developed before the coxae. 



EUTHEIINI 



Hind coxEe oval, not extending to the sides of the body; prosternum 

 always long and well developed before the coxae; antennae very ap- 

 proximately inserted at the apex of the front; neck strongly con- 

 stricted. 

 The front prolonged and rounded in the form of a broad tubercle; an- 

 tennal cavities separated by a thin partition which does not extend 

 to the apex of the tubercle; metasternal side-pieces concealed but 

 visible behind, where they extend inward and partially enclose the 

 coxae, the latter remotely separated; elytra truncate, exposing a 

 feebly declivous dorsal pygidium ; third palpal joint stout, oval, 

 obliquely truncate at tip, the truncature feebly convex and spongy; 



hind trochanters normal Chevbolatiini 



The front truncate and not prolonged; fourth palpal joint small, ob- 

 tuse and rounded, inserted axially within the apex of the third 

 which is elongate; pygidium vertical or greatly inclined, the ventral 

 segments arcuate, at least toward apex. 

 Posterior trochanters normal and small; antennal cavities large and 

 completely coalescent under the thinned and horizontal apical sur- 

 face of the front; metasternal side pieces very narrow and con- 

 cealed by the elytra, but projecting inwardly behind to meet the 



coxae , Leptoscydmini 



Posterior trochanters elongate ; antennal cavities separated by a narrow 

 partition, which extends to, and forms part of, the apical declivity 

 of the front EUMICRIKI 



Of these tribes, the Ascydmini, Eutheiini, Chevrolatilni and 

 Leptoscydmini have not as yet occurred upon the Pacific coast, 

 and the Eumicrini are only represented there by a single extra- 

 ordinary form in the extreme south, which does not properlj- form 



