70 CETONHN.!. 



the sides slightly approximating heliind and sinuated behind the 

 shoulders. 



(5 . The cephalic horns together form about three-fourths of 

 the circumference of a circle. The tips are blunt and strongly 

 recurved, and a short lateral branch is given ott' shortly before 

 them. The prothoracc is rather opaque and strongly inflated 

 above, leaving a narrow flattened margin on each side. The 

 abdomen is a little hollowed beneath. 



$ . The cephaHc horns are short, flat and horizontal, producing 

 the appearance of a false clypeus deeply cleft as in Thanmastopeus. 

 The 2^''onx)tv.m is shining and irregularly and rather coarsely 

 punctured. The scutellum is slightly produced at the apex. 



Length 23-30 mm. ; breadth 13-15 mm. 



Madras : Nilgiri Hills. 



Tyoe in coll, K. Oberthiir; that of smarcu/didns in the Bristol 

 Museum of Xatural History. 



The genus Ct/phonocejdKdus was based upon a single, poorly 

 developed, male specimen, and the only other individual hitherto 

 described (Dupont's type) is a female which has been accepted as 

 that of Narijchis OjKdus. The figure agrees well \\'\{\\ females of 

 the present species which I have examined, and Dupont's state- 

 ment that the tarsi are longer than those of K. ojxdvs seems to 

 nie to exclude the possibility of its belonging to that species as 

 Westwood believed. 



A good series of C. olivacevs has been collected by Mr. II . L. 

 Andre wes and Capt. A. K. "Weld Downing, and the latter has 

 supplied some interesting facts regarding its habits, Wlien 

 sitting in the branches of a tree much frequented by it, with a 

 view to capturing specimens, he has often seen two males fighting 

 on the flowers. " They get their horns locked together, and one 

 ends by knocking the other buzzing down the tree. The one 

 knocked down frequently returns to the attack, flying round 

 until he finds his original enemy, and goes for him again. They 

 lower their heads and raise them sharply when fighting, and their 

 horns can be heard five yards away knocking against each other." 

 Capt. Downing has a couple of male specimens with the tip of a 

 horn broken off, probably in such encounters. 



Genus NARYCIUS. 



Narycius, Btiponi, Ma;/, de Zool. v, 18J]o, CI. ix, pi. 1^^, fig. 1 ; 

 Wcsiirood. Arcana Ent. 1842, p. 114; Bunn., Ilandb. Ent. iii, 

 1842, p. 170 : Lacord., Gen. Co/, iii. ]s-,G, p. 476. 



Ti'PE, N. opalus, Dup. 



Rawje. S. India. 



Term rather short and broad, not very convex. Protliorax 

 strongly transverse, with the base very slightly prominent before the 

 scutclhun, but not lobed, the hijul angles almost covering the meso- 

 sternal epimera, the sides brondly rounded in front. Scutellum 

 short, forming an equilateral triangle. Elytra moderately broad. 



