ORDER COLEOPTERA. 477 



Anoplognathus, Repsimus, Leach. 



The antenna? contain ten articulations, and the extremity 

 of the jaws is truncated, or obtuse and entire. These insects 

 are generally rather large, and ornamented with fine colours.* 



The others, which belong to the hot countries of both con- 

 tinents, have no sternal projection ; the hooks of the tarsi, or 

 one of them, are bifid. Their jaws often terminate in two or 

 three teeth. 



Sometimes the antennae have ten articulations, and the 

 upper extremity of the jaws is entire, or at most emarginated 

 or bidentated. 



Leucothyreus, MacL, 



In which one of the hooks of the tarsi is entire and the other 

 bifid. 



The tarsi, or at least those foremost, are furnished with a 

 brush underneath ; these are dilated in the males. The 

 under part of the head, in the males, is more downy than in 

 the other sex. (Macleay Hor. Entom. I. p. 1, 145. — Me- 

 lolontha sulcicollit, Germ. Insect. Spes. No. 124.) 



Apogonia, Kirby, Macl. 

 In which all the hooks of the tarsi are bifid. (Lin. Trans. 

 401. — A. geneUata, ejusd. ibid. xxi. 9.) 



Sometimes the antennae have only nine articulations, and 

 the extremity of the jaws has three teeth. 



Geniates, Kirb. 



The extremity of the mandibles is emarginated. The 

 mentum, in the males, has underneath a sort of circular tuft, 

 formed of serrated hairs, even, or as if cut smooth like a 



* See Macleay the younger, Horce Entom. I., p. 1, 143, and tl)e 

 twelfth volume of the Transactions of the Linnsean Society, 401 — 5. 



