72 Coleopterological Notices, III. 



Intercoxal process of tlie abdomen rather wide, with the apex more or less 

 evenly and broadly rounded. 

 Tarsi not lobed beneath. 



Antennae stout, incrassate and compressed, with the subapical joints quad- 

 rate or transverse XystropUS 



Antennae more filiform, with the subapical joints longer than wide. 



Lystronicliiis^ 

 Tarsi lobed beneath ; body upiforra, the antennae slender... SteilOCllidUS 

 Intercoxal process of the abdomen narrow, acute and angulate. 

 Tarsi lobed beneath. 



Head in rejjose resting against the presternum and coxae, the former 



strongly declivous anteriorly Lo'bopoda 



Head in repose free, the prosternum before the coxae longer and less 

 declivous. 

 Prothorax more or less rounded at apex, the sides never convergent 

 toward base. 

 Basal angles of the prothorax right or slightly obtuse, the body 



generally more or less oblong and parallel Hyilieiiorus 



Basal angles of the prothorax more or less acute and posteriorly 



prominent; body broader and oval ITIeiKBCeuS 



Prothorax cordate, truncate at apex, the sides convergent and sinuate 



toward base, the basal angles rather prominent Telesicles 



Tarsi not lobed beneath. 



Third antennal joint generally subequal to the fourth at least in the 



female, in Isomira sometimes slightly shorter in that sex and more 



frequently so in the male ; elytral striae often obliterated. 



Antennae shorter, generally stout, the joints strongly obconical ; form 



of body oblong, subparallel ; punctuation and pubescence generally 



coarse and sparse IMycetopllila 



Antennae longer, more slender, the joints very feebly obconical or sub- 

 parallel ; form oval, the punctuation and pubescence usually minute 



and very dense Isoillira 



Third antennal joint always distinctly shorter than the fourth, but longer 

 in the female than in the male. 

 Anterior tarsi more or less dilated in the male. 



Legs short, the tarsi generally distinctly shorter than the tibiae ; body 

 but slightly convex longitudinally. 

 Mandibles notched at apex, the lobes equal and acute ; elytra but 

 feebly dehiscent and only very near the apex, the striae obliter- 

 ated laterally ; genital armature deeply bilobed in the male. 



Tediuiis 



1 I feel obliged to employ this particular combination of letters for the 

 generic symbol, since this is given as the original spelling in the Biologia. 

 I have, however, not seen the work of Latreille in which it is so printed. 



