PHYTOl'HAGOUS COLEOPTEKA FROM NEW GUINEA 497 



Elongate, parallel, the head black, impunctate, frontal tubei-- 

 cles strongly raised, antennae long and slender, black, the second 

 joint less than half the length of the third joint, terminal joints 

 very slender and elongate, thorax one half broader than long, 

 subquadrate, the sides feebly rounded at the middle, the angles 

 .acute, surface rather convex, impunctate, pale ilavous, scutellum 

 black, oblong, elytra much broader at the l)ase than the thorax, 

 finely and closely punctured , ilavous, the apical third portion 

 black, under side and legs of the latter colour. A single spe- 

 cimen. 



Hah. Moroka, 1300 met. 



Thre species of Yulenia have been described by me, of these 

 Y. bicolor must find its place in another genus. 



ITYLUS, gen. n. 



Elongate, glabrous, head rather long, robust, frontal eleva- 

 tions, strongly developed, palpi swollen, antennae very long, 

 nearly extending to the end of the elytra in the male, the basal 

 joints robust, pubescent, very elongate as well as the third joint, 

 thorax transversely convex, at least one half broader than long, 

 the sides rounded anteriorly, the angles acute, scutellum broad, 

 elytra wider at the base than the thorax, finely punctured in 

 rows, legs long and slender, tibiae unarmed, the first joint of 

 the posterior tarsi as long as the following two joints together, 

 claws bifid, prosternum extremely narrow, anterior cotyloid ca- 

 vities open. Type Itylus bicolo?- Jac. 



I must establish this genus on a species from Perak, described 

 by me as Yulenia bicolor in the Stettin. Zeitg. 1895. Altough 

 the principal structural characters as the unarmed tibial bifid 

 claws and open anterior cavities agree with that genus, the 

 thorax and the antennae are of quite different shape and stru- 

 cture and agree almost entirely with Nadra7ia (Metrioidea) bi- 

 color Baly as well as the coloration, the latter (black and brown), 

 being very common in the Malayan Phytophaga. In Nadrana 

 however the claws are appendiculate and other differences are 



Ann. del Mus. Civ. di St. Nat. Serie 3.% Vol. I (13 Febbraio 1905) 32 



