MISCELLANEA ENTOMOLOGICA, No. Y. 



"THE HEL^IDES." 

 By William Macleay, F.L.S., &c. 



(Contiymed from i'>age 550.) 



In my last Paper on this subject, I gave descriptions of all the 

 knosvn species of the winged genera of the sub-family. In the 

 following I shall deal with the apterous genera of the same sub- 

 family. 



These consist of the genera Helceus, Sy7n2')etes and Saragus. I 

 shall take them in the order in which I have now placed them. 



Genus Hel;eus, Latr. 



Head entirely immersed in the thorax, scarcely narrowed, trun- 

 cate in front, depressed on the forehead. Eyes of variable size. 

 Antennfe in general as long as, or a little more long than the 

 thorax, their four last joints sub-globose, perfoliate, and forming 

 a tolerably distinct mass. Thorax moderately transversal, 

 parabolically rounded on the sides, narrowly and profoundly 

 emarginate in front with the anterior angles prolonged and cross- 

 ing in front of the head ; the base imperfectly contiguous to the 

 elytra, bisinuate, with a large median lobe of variable form ; the 

 foliaceous margin of great breadth and reflected. Elytra oblong- 

 oval or oval, convex on the disk, the foliaceous margins of vai-iable 

 breadth and reflected. Legs long, tibipe finely rough, one spur to 

 the anterior and two to the four posterior tibiae, sometimes very 

 small. Metasternum very short, mesosternum declivous, broadly 

 concave, prosternal prominence curved behind, sometimes prolonged 

 into a short point. Body aptei'ous. 



