506 CLAVICOKNIA— DEKMESTIDAE. 



C Antennae five-jointed, the last prolonged and clublike. 



Scales black, sprinkled with yellow ; a large whitisli- 

 gray transverse spot on each posterior angle of thorax and 

 three more or less distinct waved whitish bands on elytra ; 

 antennae and legs brown-red. L, f — !{ 1. Common. 



A. claviger, Er. 



Trhiodes. 



Ovate ; rather flat. Black, shiny ; antennae yellow ; legs 

 brown-red, tarsi yellow. Hairs brown. L. 1 1. Not 

 common. T. hirtus, Fab. 



BYRBHIDAE. 



A. Clypeus not separate from forehead ; antennae eleven- 

 jointed. 



a. Hinder legs placed in special grooves. 

 All tarsi fitting on inner-side of tibiae. 



I, Eyes, mandibles and labrum completely covered 

 when head drawn back. 



Antennae with three-jointed club. Last joint of maxil- 

 lary palpi pointed. Syncalypta, Dillw. 



II, Eyes half covered, mandibles covered, labrum 

 free. 



Antennae gradually thickened. By rr It us, Lin. 



h. No sj)ecial grooves for liinder legs. 



/. Anterior tarsi fitting to tibiae, hinder pairs of tarsi 

 free. 



Eyes half covered. 



1, ]\Iandibles covered, labrum free. 

 Antennae with five-jointed club. Last joint of maxillary 

 palpi pointed. Gytilus, Er. 



^. Mandibles and labrum free. 



Anteiniae gradually thickened from seventh joint. Last 

 joint of maxillary palpi ovate, that of labial palpi nearly 

 globular, truncate at apex. Morychus, Er. 



II, All tarsi free. 



Antennae with elongate, five-jointed club. IMandiblea 



