TABLE OF COLEOPTERA. 105 



I. Clavicornes. 



Antennae ending in a solid or perfoliate knob. 

 Legs retractile into grooves in the abdomen. 

 Ex. Byrrhus (Pill Beetle)* 

 Hister.^ 



II, Lamellicornes. 



Antennae ending in a serrate club, or in leaflike 

 joints (Lamellate). 



1. Antennae elbowed, club serrate. 

 Ex. Lucanus (Stag Beetle). 



2. Antennas straight (Lamellate). 

 Ex. Geotrupes (Dung Beetle).\ 



Melolontha (Cockchafer).^ 

 Cetonia (Rosechafer).\ 



SUBSECTION IV. PRIOCERATA (Saw-horns). 



Antennae not long, slender, of equal thickness 

 throughout or tapering. Often deeply toothed 

 or comblike. 



I. Macrosterni. 



Breast-plate long ; covering the throat in front ; 



behind drawn out into a point between the 



legs. 



Antennae short. 

 Legs short and retractile. 

 Body hard, head buried to the eyes in thorax. 



Ex. Elater (Skipjack). 



* Ant. straight ; body oval. 

 Ant. elbowed ; body squarish or oblong. 



Tib. broad and toothed. 

 Tib. slender ; claws toothed. 

 II Tib. slender ; claws simple. 



