412 CLASS INSECTA. 



Macronychus. Mlill. Germ. 



Have five distinct articulations on the tarsi ; the body oblong, 

 antennae of six articulations, the last of which, composed 

 perhaps of three, forming an oval knob. They are sus- 

 ceptible of being folded under the eyes.* 



Georissus. Latr. Gyll. Pimelia^ Fab., 



In which the tarsi appear composed of only four articula- 

 tions. The body is short, inflated, and almost globular, 

 with the abdomen embraced by the elytra. The antennae 

 present nine articulations, and terminate in a round knob 

 formed by the last three.-f* 



» Macronychus quadrituberculatus, Miill. Illig. Mng. V. Latr. Gen. Crust. 

 et Insect. IL p. 58. Parnus obscurus, Fab. Germ. Insect. Spec. Nov. I. 

 p. 89. 



\ Pimelia pygmcea. Fab.; Georissus pygmcBUs, Gyll. Insect. Suec. I, iii. 

 p. 675. Trox dubius, Panz, Faun. Insect. Germ. LXII. 3. 



