364 COLEOPTERA OF NORTH AMERICA. 



This tribe contains but one species, Gnemodus ieslaceus Horn, 

 found near Fort Yuma, California. Tlie unique example before 

 us has not permitted as thorough a study as is desirable, and it 

 may be possible that it should not remain in the present family, 

 notwithstanding its heteromerous tarsi and large mentum. 



Tribe VII.— BATULIIIVI. 



Body elongate oval, apterous, sparsely hairy; head received 

 in the thorax as far as the eyes, which are almost divided, small 

 and coarsely granulated; front dilated at the sides over the base 

 of the mandibles, submarginate anteriorly, partly covering the 

 labriim ; mentum large, flat; maxillifi exposed, ligula concealed ; 

 gular peduncle broad, distinct ; "palpi not dilated; antennae 11- 

 jointed, very slightly thickened externally; thorax not applied 

 closely to the trunk; metasternnm with narrow episterna; middle 

 coxae surrounded by the sterna, without trochantin ; hind coxae 

 not widely separated, intercoxal process of abdomen triangular; 

 legs short, tibial spurs distinct, especially the anterior ones, 

 anterior tibiae strongly dilated and compressed; tarsi short, with 

 small spines beneath. 



Two small species of Batulius, from the Colorado Desert, con- 

 stitute this tribe. 



Tribe VIII.— ZOPHERIIVI. 



Body elongate, apterous, rough, covered with elevations ; 

 epistoma truncate or broadly emarginate ; labrum uncovered; 

 mentum large, leaving the base of the maxilli3e and sometimes the 

 ligula exposed, inserted upon a very broad, short, gular process; 

 head received by the prothorax as far as the eyes, which are 

 very transverse and very finely granulated ; antennae with the 

 outer two or three joints usually connate, elytra but feebly em- 

 bracing the flanks, without distinctly defined epipleurae. Meta- 

 sternum short, with narrow side pieces ; middle coxae without 

 trochantin, inclosed by the sterna. Anterior and hind coxae very 

 widely separated; intercoxal process of the abdomen broad, rect- 

 angular ; tibial spurs very small, or wanting. 



Our genera are as follows : — 



Tarsi sulcate beneath ; ligula concealed ; 

 Anteiince received in very deep grooves ; 



Joints of antennae 9-11 connate ; truncate at tip. Zopherus. 



Joints of antennae 10-11 connate ; pointed at tip. PhlcEodes. 



