REVISION OF TENEBRIONID SUBFAMILY CONIONTIN^ 53 



outer angle frequently prolonged, the tarsi always spinulose be- 

 neath, the anterior coxte transversely oval, the intermediate very 

 moderatel}"^ separated, the prosternal process more or less ex- 

 tended and porrect and the mesosternum between the coxae im- 

 pressed and concave, these latter chara.ters, with the long and 

 well developed tibial spurs, elongate basal joint of the hind tarsi 

 and oblique hind coxaj, recalling the Zophosini very forcibly. 

 The fourth abdominal segment is very short when compared 

 with the three anterior segments. The members of the Conion- 

 tinge are neo-subarctic and neo-subantarctic exclusively and are 

 represented on the Pacific slope of North America by the 

 Coniontini and Coelini, on the Atlantic slope by the Branchini 

 and in South America by Praocts and allied genera. In the 

 old world, as previously intimated, they are replaced by the 

 Zophosini, which might be assumed to have almost if not quite 

 subfamily rank. 



The present revision omits the Praocini, as I have no repre- 

 sentative of this South American tribe. The other tribes may 

 be outlined briefly as follows : — 



Intercoxal process of the abdomen moderately broad, truncate; elytra 

 embracing the sides of the body beneath ; antennae well developed, 

 elongate; hind coxai rather more feebly oblique, body generally 

 ridged above and roughly sculptured Branchini 



Intercoxal process narrow, more pointed or rounded and projecting 

 further into the metasternum 2 



2 — Antennae long and slender, very well developed; basal joint of 

 the anterior tarsi variable, elongate or short, in the latter case 

 more or less eccentrically triangular and in some cases very promi- 

 nent at the inner apical angle, suggesting the spur-like process of 

 the next tribe Coniontini 



Antennae very small, compact, with the joints transverse; basal joint 

 of the anterior tarsi greatly prolonged internally at apex, forming 

 a spur which sometimes extends almost to the end of the tarsus. 



Coelini 



The Coniontini are extremely abundant, having a widely ex- 

 tended distribution almost coincident with that of Eleodes^ but 

 the Coelini are less numerous and are restricted to the seashore 

 of California and Lower California, occurring also on the 

 neighboring islands. 



The form of the prosternal process is not always of deci- 



