24 COLEOPTERA OF iNORTH AMERICA. 



One genus is represented in our fauna, and the species Pachy- 

 irles lestaceus Horn, occurs in Arizona. Fhyf<ea lias occurred 

 at Tampico, Mexico, and may possibly be found in Texas. 



Tribe XIII.— NOMIIIVI. 



Antennae somewhat nioniliform, arising- under a distinct frontal 

 ridge, four basal joints glabrous, first joint stouter not long, third 

 nearly as long as the two following, eleventh oval-acuminate. 

 Head stout, oval, neck broad, front with two supra-orbital setfe, 

 clvpeus slightly prolonged. Eyes round, prominent, free poste- 

 riorly, closely approaching the buccal opening beneath. Labrum 

 short, broadly eniarginate. Mandibles slightly prominent, arcu- 

 ate, acute at tip, inner edge feebly toothed at middle, outer lower 

 edge slightly expanded, the outer face concave and with a dis- 

 tinct setigerous puncture. Maxillae stout, with a double row of 

 short stiff spines within, palpi stout, terminal joint slightly iusi- 

 form and obtnse at tip. Mentum broad, deeply emarginate with- 

 out tooth, basal suture distinct. Ligula short, broad, acute and 

 bisetose at tip; the paraglossae slender, slightly longer than it 

 and ciliate within at tip ; palpi short, last joint slightly fusiform, 

 obtuse at tip. Thorax with two setje near the front angles ami 

 one at the posterior. Body pedunculate, scutclliim not visible 

 between the elytra. Elytra slightly margined at base near the 

 hind angles, sides very narrowly inflexed, margin slightly inter- 

 rupted posteriorly, with a short internal plica, and no dorsal 

 punctures. Prosternum obtuse, not prolonged at tip. Meso- 

 sternura oblique, the coxte separated, epimera and episterna nearly 

 equal. Posterior coxiB contiguous. Abdomen, with posterior 

 margins of segments 3-4-5 narrowly coriaceous. Legs mode- 

 rate, middle and posterior tibiae ciliate externally, the anterior 

 slightly broader at tip, emarginate within, the spurs distant. 

 Tai'si not dilated. Sexual characters as in Scarites. 



As far as ascertained, this tribe is represented in our fauna by 

 a single genus Nnmhi^ (Haplochile Lee), the position of which 

 has been the cause of differences of opinion. For Dejean, Duval, 

 and Schaura it was a Morionide, Lacordaire (not knowing Haplo- 

 chile) places Nnmius in the Ozenides and Haplochile in Morio- 

 nidos. Chnudnir properly omits it from his essay on the Ozenides, 

 From the Morionini it differs in the form of the anterior tibiae 



