548 CLASS IMSICTA. 



ticular and equal. The labruni, mandibles, and palpi are 

 hidden.* 



We shall terminate these pimeliae by those whose mentum, 

 squared, has neither emargination or void on the upper edge. 

 Their body is always oblong, with the corslet sometimes nearly 

 square, rounded, or dilated ; sometimes narrow, elongated, 

 sub-cylindrical, and the abdomen ovoid or ovaliform. The 

 antennae have always eleven distinct articulations. The an- 

 terior thighs are swollen and sometimes indented, or at least 

 in one of the sexes. These insects evidently form the pas- 

 sage from this tribe to the following. 



Sometimes the antennae are entirely or nearly altogether 

 granulated, or composed of short articulations, whether 

 ovoid or globular, or in form of a top, or nearly hemisphe- 

 rical. 



Among them some resemble the pimelias of the last sub- 

 genus, with reference to the dilatation and elongation of the 

 lateral edges of the head. The labrura is very short and 

 little advanced. The lateral edges of the corslet are straight, 

 or simply arched and rounded, and without dilatation in 

 form of an angle or a tooth. The eyes are but little 

 elevated. 



In these the corslet is narrow, whether cylindrical or 

 heart-shaped, elongated and truncated at both ends. Such 

 are 



Tagenia, Lat. Stenosis, Herbot. Akis, Fab. 



The antennae are almost perfoliated, with the third articu- 

 lation scarcely longer than the following, and the eleventh or 

 last very small, and united with the preceding. The head 



* Adelostoma sulcatmn, Duponchel Mem. de la Soc. Lin. de Paris, 1827 ; 

 found about Cadiz, by the eldest son of this naturalist, and at Tangiers, 

 by M. Goudat, the younger ; but brought long since by Labillardiere, from 

 Syria, 



