102 CETONIIN.I. 



The sexes differ as in H. amona and porpJiyretica. 



Lent/th 16-21 min. ; breadth S-10 nnn, 



EuKMA : IJhauio (L. Fea). 



Type in tlie Genoa Mnseura. 



This was described as a variety of the preceding species, bnt the 

 head is very markedly longer and the i-elationship to H. anto'na 

 is scarcely so close as that of H. amana to JI. porj^Jnjrctica. 



Genus TRIGONOPHORUS. 



TrigoiKipborus. Hope, Grai/s ZooL MiscvU. 18-51. p. i'4 : U'cafu'., 

 Arcmia Ent. \, 1842, p. li'O. 



Type, Trigonopliorvs nepalensis, Hope. 



Jianr/e. India and Ijurina. 



Body depressed, elongate and jialced, with moderately slender 

 legs. Head broad, excavated, the forehead armed with a horizontal 

 lobe directed forwards ; the clypeus bearing at the middle of the 

 front margin a triangular horn curving forwards and upwards, 

 slender at the base and broader at the extremity. JSides of the 

 clypeus nearly straight and the angles rounded. Sides of the 

 prothorax curved, posterior angles well-marlced, and the base 

 rectilinear, gently emarginate at the middle. Scutellum nearly 

 equilateral, with the sides straight and the apex sharp. Elytra 

 plane, not costate, with the sides distinctly sinuated. Sternal 

 process long. IMandible consisting of a feeble outer lobe and a 

 broad, pubescent membranous inner lobe. Mentum deeply emar- 

 ginate. Palpi slender. 



c? . The legs are rather slender and the front tibia) unarmed. 

 The posterior cephalic horn is generally acute. 



2 . The legs are stouter anil the front tibia? broad and 

 strongly bidentate. The posterior cephalic horn is generally 

 blunt. 



All the known species of this genus inhabit our region and all 

 are normally of a nearly uniform green, the legs excepted. 



Kci/ to the Species. 



1 (4) lu'inora not green. 



2 (3) iH'niora and tibire bright orange /«ywA'H,v/V. Hope, j). lOu. 



o (2) Femora :md tibifc dark rod sautiderst, Westw., 



4 (I) I'Vmora {.neeii. [p. 103. 



i") (14) Tibiii' not fireon. 

 t) (13) Tibi;e reddisli. 



7 (10) Metastennuu closelv puiicturod and 



hairy. " . . , tP- '^^^■^■ 



8 (0) Clypeill process entire (/rnci/ipcs. Wcstw., 



9 (8) Clypeal process bitid hooleri, AVhite, p. 104. 



