166 LYG^EINA. 



prominent, the end obtuse ; sides lobes convex, shorter than the 

 central lobe. Antenna rather strong, long ; the first 3 joints gra- 

 dually wider from the base to the apex ; 1st not so long as the head, 

 but projecting beyond it ; 2nd twice as long as the 1st ; 3rd and 

 4th petiolated, in length subequal, each not quite so long as the 

 2nd ; 4th long-fusiform: Eyes prominent, inserted at some distance 

 from the base of the head. Ocelli prominent, more distant from 

 each other than from the eyes. Rostrum reaching to the 2nd pair 

 of coxae, thin, the base in a much wider oval channel, -J- the length of 

 the head, the sides of the channel raised and rounded in front ; 1st 

 joint not so long as the head ; 2nd 1|- times as long as the 1st, 

 reaching to the 1st pair of coxa3. 



Thorax. Pronotum trapezoidal, in front narrowed almost to the 

 width of the base of the head; anterior margin concave, slightly 

 raised ; anterior angles deflected, rounded ; sides (within the mar- 

 gin) slightly curved inwards at |rds of the length, then suddenly 

 widened in a slighter curve to the hinder angles ; the angle formed 

 between the two curves filled with a thin horizontal plate, being an 

 extension inwards of the margin ; disk, at about frds of its length, 

 with a slight transverse depression, ending in a deep fovea on each 

 side, but within the margin; at the hinder angles a large oval 

 callus ; hinder angles rounded ; posterior margin concave. Scu- 

 tellum large, triangular ; the centre depressed. Elytra ; Clavus 

 deflected to the Corium ; claval suture depressed ; Corium ; anterior 

 margin gently rounded, slightly reflexed, broad for about the first 

 3rd, then suddenly narrow ; the 2nd nerve greatly incrassated and 

 raised for about \ its length ; Membrane transversely depressed on 

 the outer half near the base, with 4 nerves arising at the base; the 

 1st curved to the anterior margin, the other 3 equidistant, curved 

 beyond the base, and then straight to the posterior margin. Ster- 

 num ; Mesosternum in the centre swollen, with a deep, hindwardly 

 widened rostral channel ; Metasternum in the centre depressed ; the 

 xyphus on both segments long and pointed. Legs strong; tliiglis 

 fusiform, 1st pair very thick, more or less flattened beneath and 

 dentate ; tibia angulated, gradually thicker to the apex ; 1st pair 

 widely bent outwards at the base, at the apex somewhat suddenly 

 widened on the inner side and channeled; tarsi; 1st joint of the 1st 

 and 2nd pairs as long as the other 2, of the 3rd pair longer. 



Abdomen above flat, beneath convex ; Connexivum broad, greatly 

 reflexed. Underside; in the ? the 5th segment is but slightly 



