384 CLAVICORNIA — ANISOTOxMIDAE. 



More or less power of rolling up into a ball (in part of 

 Agatkidium complete). Male with five joints to front pairs 

 of tarsi and four joints to posterior pair. Agathidiides. 

 B, Legs powerful, tibiae strongly spinet! ; number of tarsal 



joints equal in both sexes. 



No power of rolling up into a ball. A nisotomides. 



A GATHIiyUnBS. 



A. Antennae with three-jointed club. 



No separate clypeus ; last joint of maxillary palpi trun- 

 cate at apex; ligula bilobed ; lal)ial palpi with first two 

 joints about equal in length, third thinner and shorter ; 

 under-side of head with a pair of furrows for reception of 

 antennae, mesosternu.m finely ridged. Male with anterior 

 tarsi slightly dilated. Agatkidium, 111. 



7?. Antennae with four-jointed clul). 



Clypeus separated from forehead by a fine line ; last joint 

 of maxillary palpi pointed ; ligula slightly emarginate ; 

 labial palpi with second joint rather smaller than first and 

 third, latter thinner toward apex ; mesosternum with a 

 tul)ercle at apex. Male with three joints of anterior and 

 two joints of intermediate tarsi dilated ; female with four 

 joints to all tarsi. Amiyhicyllis, Er. 



C Antennae with five-jointed, interrupted club. 



Clypeus separated from forehead by a distinct curved 

 impression ; last joint of maxillary palpi gradually pointed ; 

 ligula bilobed ; labial palpi with second joint half as long 

 again as first, gradually thickened toward apex, third 

 smaller and narrower, mesosternum with a tubercle at 

 apex. Hinder pairs of tibiae with fine spines, also a few 

 spines toward apex of anterior tibiae. Male with anterior 

 tarsi dilated. Liodes, Latr. 



Affathidium. 

 A. Sides of elytra with the shoulders widely rounded in 



front. 



With complete ability to roll up into a ball. Female 

 with five joints to anterior tarsi and four joints to hinder 

 pairs. 



a. Head and thorax red, elytra deep black, abdomen 

 more or less blackish. 



