36 COLEOPTERA OF NORTH AMERICA 



less cordiform, the lateral margin distinct, setigerous punctures 

 at side situated the one in front of middle, the second at the hind 

 angle (except in Lachnophorus, where it is slightly in front). 

 Elytra feebly margined at base, the lateral margin distinct, apices 

 rounded. Scutellum and scutellar stria distinct. Tarsi slender, 

 fourth joint simple. Claws simple. Posterior cosos contiguous. 

 Body above pubescent or pilose 



In the above characters will be found all that will define the 

 genera placed here. With other genera the tribe might possibly 

 be more properly divided in three, but for the present they will 

 be considered groups forming an osculant tribe. 



These groups are as follows: — . 



Antennae with four glabrous Joints. 



Thorax ovate, lateral margin obtuse, the posterior setigerous puncture 

 in front of the basal angle. Body subpedunculate. Lachnophori. 

 Last joint of palpi pubescent, ovoid, suddenly acuminate at tip. 



Elytra with tliree dorsal punctures. Lachnophorus. 



Last joint of palpi glabrous, conical, gradually narrowed to tip. 



Elytra without dorsal punctures. Huphorticus. 



Thorax cordiform, lateral margin acute, the posterior setigerous puuc- 



ture at the hind angle. Body not pedunculate. Anchonodeki. 



Last joint of palpi gradually narrowed to tip and slightl^y oval. Elytra 



with three feeble dorsal punctures. Anchonoderus. 



Antennae with three basal joints glabrous. Thorax cordate, margin acut(^, 



the hind angle with setigerous puncture. Atrani. 



Palpi as in Anclionoderus. Dorsal punctures not evident. Atranus. 



The structure of the antennae of the first two tribes seems to 

 have lieen overlooked The joints 2-4 are not absolntely glabrous 

 in the strict acceptation of the terra, but they are devoid of the 

 fine punctuation and pubescence which cover the following joints. 



From the characters above given it will be evident that the 

 Lachnophori osculate closely with the Egini, and the Atrani with 

 the Platynini, while the Anchonoderi are intermediate between 

 the other two groups. 



Group Lachnophori. 



Eyes large, moderately prominent Head oval, sometimes 

 slightly constricted behind the eves, front more or less deflexed. 

 Elytra not margined at base, the apex with very feeble sinuation 

 in LachnopJw?'!!^ or rounded in Eiiphortirvit, the strige entire, 

 the eighth stria distant from the margin, with very distinct ocel- 



