On new Longicorn Coleoptera from China. 59 



Size: rnaj. diam. 1*5, alt. axis 2*0 millim. 



Operculum smooth, semicircular in form, and straight on 

 the columellar or inner side. 



This species is nearest to G. laratula^ from near Moulmeia, 

 described and figured by Stoliczka in J. A. S. B. 1871, 

 p. 157, pi. vi. fig. 5 ; but the ribbing is not so coarse and 

 strong as in G. laratula. 



IX. — On neio Longicorn Coleo'ptera from China. By C. J. 

 Gahan, ]\1.A., Assistant, Zoological Department, British 

 Museum. 



Most of the species described in this paper have been repre- 

 sented for some time in the British-Museum collection, but 

 only by single or poor specimens. The addition of fresh 

 specimens, presented by Mr. J. H. Leech, and the access 

 which I have had to the collection of this gentleman, have 

 enabled me now for the first time to describe them. Some 

 of the species, duplicates of which have been presented by 

 Mr. Leech, are quite new. 



Teachylophus, n. g. 



Head slightly projecting ; the front vertical, impressed ; 

 the antennal tubercles somewhat depressed, separated by only 

 a narrow groove ; the vertex with a short median sulcus. 

 Antennse a little longer than the body in the male, about 

 equal in length to the body in the female, with the third and 

 fourth joints cylindrical, scarcely thickened at the apex, the 

 fourth much shorter than the third, the fifth joint appreciably 

 longer than the third, cylindrical at the base, compressed and 

 angulate on its inner side at the apex ; joints sixth to tenth sub- 

 equal, compressed, and each angulate on its inner side at the 

 apex ; eleventh joint in the male a little longer, in the female 

 scarcely longer than the tenth. Prothorax broader than long, 

 narrow in front, dilated, but not armed at the sides in the 

 middle, strongly rugose above. Elytra elongate, subparallel 

 in their anterior four fifths. Legs long, femora linear, the 

 posterior scarcely surpassing tlie third abdominal segment in 

 the male, somewhat shorter in the female. Prosternum 

 vertical and with a median keel or tubercle behind. 



The position of this genus is between Mallambyx^ Bates, 



