THE LAMELLICORNES, OR " CHAFERS." 313 



ligula is leathery or membraneous, and distinct from 

 the mentum, and the lobes of the maxillse are not 

 soldered in the larva. In the Pleurosticti, also, the 

 CetoniidcB and Rutelida have the three last pairs of 

 abdominal spiracles diverging strongly outwards ; whilst 

 in the Melolonthidce, Sericidte, and Hoplida the diver- 

 gence outwards is very slight. 



The CETONIID.E, of which the exotic species are nu- 

 merous, large, and beautiful, are here represented by 

 a very few (but not inconspicuous) insects. Their man- 

 dibles and labrum are hidden under the clypeus, the 

 former being composed of an outer horny and inner 

 membraneous plate ; the antennae are short, with ten 

 joints, the club being composed of three ; the elytra are 

 somewhat depressed, not reflected at the sides, and 

 leaving the pygidium exposed; the anterior coxse are 

 ovate-conic and projecting ; and the hooks of the tarsi 

 equal and simple. 



In Gnorimus and Trichius the elytra are not sinuated 

 near the shoulder, at the sides, and the mesothoracic 

 epimera are not visible from the upper side. The species 

 of the former occur in all their stages in the rotten 

 mould of oak and cherry trees ; and one of the latter 

 (T.fasciatus, Plate VII, Fig. 6), found in Perthshire, 

 where it is called " bee-beetle," is conspicuous for its 

 banded body, and long, bright-yellow hairs: it flies round 

 thistle-tops, in the hot sunshine, like a Bombus. 



In Cetonia the mesosternum is produced forwards 

 into a rounded knob; the elytra are deeply sinuated 

 externally, below the shoulder; the mesothoracic epi- 

 mera are enlarged, carried upwards, and conspicuous 

 between the hinder angles of the thorax and shoulders 

 of the elytra : the metathoracic epimera, also, are en- 



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