78 BEETLES. 



Genus Trox, Fabr. 

 Wing-cases uneven, with small protuberances, or tufts of 

 hair, arranged in rows. Antennae short. The pronotum is 

 uneven, and fringed on the lateral and posterior borders. 

 The abdomen has five abdominal segments. They live on 

 dry bones, hoofs, and other animal remains, and are able to 

 produce a chirping noise by rubbing the abdomen against 

 the wing-cases. 



* T. sabulosus, Linn. (Plate VIII., Fig. 7). Black, and 

 broadly convex. The elytra have four rows of hair-tufts, 

 and four fine striae in the intervals, which are placed in two 

 rows and strongly granulated transversely. It is found in 

 dry, sandy places, in sweepings, among the hair of hides, and 

 on old bones. 



* T. scaher, Linn. (Plate YIIL, Fig. 8). Dull blackish -grey, 

 with the elytra only slightly expanded behind, moderately 

 convex, distinctly striated with very small, and also with 

 larger, tufts of rusty-red hair. 



Group IL MELOLONTHINI (Cockchafers). 

 Antennce with from seven to ten joints, ending in a fan, 

 which is usually larger in the males than in the females. 

 The clypeus is divided by a suture from the front. The 

 claws are either equal, or else the hind tarsi have only one 

 claw. These beetles live on plants and flowers, and many 

 species appear occasionally in very large numbers, and may 

 then do a considerable amount of damage to trees and 

 plants, on the roots of which the larvae feed. 



Genus Hoplia, Illig. 

 Body generally covered with shining scales. Antennae 

 with nine or ten joints and a trilobate fan. The front tarsi 



