52 CASEY 



2 — Last abdominal segment unmodified 3 



Last abdominal segment transversely excavated 4 



3 — Posterior coxae oblique and long, approaching the sides of the 



body; trochantin distinct Coniontin^ 



Posterior coxae transverse and short, more remote from the sides of the 

 body; trochantin inconstant, invisible to distinct Asidin^ 



4 — Trochantin invisible; epipleurse usually wholly undefined. 



ZOPHERIN^ 



The Tentyriinas, as above limited, are divisible into several 

 groups of rather more than tribal value, among which may be 

 cited those genera having the hind coxae much extended trans- 

 versely, linear and frequently feebly oblique, the body generally 

 winged ; then those with the hind coxae transverse and more or 

 less oval, and, lastly, those with the hind coxae very oblique and 

 with the ante-coxal grooves still more oblique, known tribally 

 as the Zophosini. If the Zophosini, which are as completely 

 isolated in the old world fauna as the Coniontinae are in North 

 and South America, were placed last in the Tentyriid series, the 

 Coniontinag would naturally follow them, having many sugges- 

 tive points of resemblance. By this arrangement, which it will 

 be observed, greatly subordinates the importance of the trochan- 

 tin, many minute forms without trochantin, such as Arceoschtztis 

 and Stenosis would be included with the Asidinse. The Zophe- 

 rinae are so isolated as to assume subfamily rank, very obviously 

 it would seem. 



The Coniontin^e as a group have the body oblong or oblong- 

 oval in form, compact, with the prothorax at base as wide as the 

 elytra, usually enveloping the humeri at the sides to a more or 

 less noticeable degree, the epistoma emarginate or sinuate at the 

 middle, the eyes at the sides of the head, transverse, rarely 

 divided and the mandibles short, stout and bifid at tip. The 

 mentum is rather small, obtrapezoidal and sinuate at tip and 

 there is at the apex of the post-mental surface a transverse area, 

 defined by a rapid divergence of the gular sutures. The ligula 

 is large, transverse, sinuate and densely chitinized and the palpi 

 of the usual Tenebrionid t3'pe, the last joint obtriangular. The 

 antennae differ from those of Asida in having a free, subequal 

 club, generally of three joints. The legs are rather stout, well 

 developed, the anterior tibiae more or less obtriangular, with the 



