384 COLEOPTERA OF NOKTH AMERICA. 



Tribe XII.— BOLETOPIIAGIIVI. 



Ill this tvibe the body is oblong and winged, opaque, with the 

 surface rough, or at least with the elytra costate ; head received 

 in the thorax as far as the eyes; front variable; epistonia much 

 dilated, separated from tiie labruin b}^ a short clypeus ; eyes 

 coarsely granulated, deeply eraarginate; inentum inserted upon a 

 gular 'peduncle; ligula i)roiniiieiit ; palpi not much dilated; head 

 under the eyes with a large groove for the reception of the base 

 of the antennae ; elytra with narrow epipleuraj. Anterior coxaj 

 transverse; middle coxa3 vyith a small distinct trochantiii ; hind 

 coxa? separated ; intercoxal process triangular ; legs moderate ; 

 tibial spurs small, tarsi pubescent beneath; the first joints very 

 short, equal; the last joint longer than the others united. 



The species live on fungi, which grow upon trees or under 

 their bark. Our goiuM-a are two,* both having the sides of the 

 thorax broadly Battened. 



.Aiitennre lO-jointwl ; eyes not entirely divided. Boletotherus. 



Anteiinre 11-jointed ; <>yes completely divided. Boletophagus. 



Fhellidiua Lcc. is Boletotherus Cand. No species of this tribe 

 is yet known from the Pacific district. 



Tribe XIII.— APOCRl'PHINI. 



Body slender, apterous; head not constricted behind ; labruin 

 prominent; eyes small, ema.rginate, coarsely granulated; mentum 

 small, inserted on a gular peduncle; maxilhc and ligula exposed; 

 last joint of palpi strongly securiform; anteiinse 11-jointed, slen- 

 der, scarcely thicker e.xternally; prothorax globose, sides not 

 margined; trunk pedunculated; elytra embracing rather widely 

 the flanks of the abdomen, epipleura^ narrow ; posterior margins 

 of third and fourth ventral segments distinctly coriaceous. Ante- 

 rior coxa? moderately separated; middle coxte inclosed by the 

 sterna without distinct troehantin ; posterior coxic small, widely 

 separated; legs long, thighs clavale ; tibia? slender, with very 

 small spurs; tarsi pubescent with long hairs. 



* A species of Kleddiia {fwnjicola Horn) lias been described in our fauna, 

 but we are inclined to believe tbat the specimens were accidentally intio- 

 duced, and that the species is E. (ujunck-olu of Kurope. 



