188 TRA.CIIELIZUS CYLINDRICORNIS. 



furrowed , the anterior portion is provided with two furrows. 

 Antennae inserted before the middle of the rostrum, as 

 thick as its anterior portion and as long as the head aud 

 the thorax together; of the joints the 2nd to the 8th are 

 transverse and perfoliated, the 9th and 10th longer but 

 about of the same thickness, the 11th almost as long as 

 the 9th and 10th together, subcylindrical at its basal half 

 and terminating in a rather sharp point. 



Thorax as long as the head and the rostrum together , 

 much narrower anteriorly than at the base, strongly fur- 

 rowed, not punctuated; its sides somewhat rounded. 



Elytra S^'j as long and l'/^ as broad as the thorax , rather 

 strongly notched at the base , the shoulders angulous , the sides 

 subparallel along four fifths of their length , with upturned 

 edges and conjointly rounded at the apex although they 

 have a small notch at the suture ; they are provided with deep 

 furrows almost as much curved as in Trachelizus lyratus 

 Perroud; the suture is broad, of a somewhat darker color 

 than the rest; two obsolete spots near the suture are dar- 

 ker too. 



Under surface of the body not punctuated , metasternum 

 strongly furrowed , the two basal segments of the abdomen 

 are also furrowed, but the furrow is well defined only on 

 the anterior half. Legs short and tolerably stout, thighs 

 clubshaped, the joints of the tarsi thick and very short. 



This species is allied to T. lyratus Perr. ^) and T. Ho- 

 wittii Pasc. ^) , but easily distinguished by the three apical 

 joints of the antennae being of the same width or hardly 

 broader than the preceding ones, by the apex of the elytra 

 being slightly notched at the suture , etc. 



A single specimen captured at Datar , during the scientific 

 Sumatra-Expedition, in May 1877. 

 Rouen, 1 November 1879. 



1) Annates de la Sociélé Limiêemw de Lyon. 1864. p. 139. — Mélanget 

 Entomologiques. IV. p. 92. 



2) Annah and Magazine of Natural History. 4 th series , vol. X (1872) p. 320. 



Notes from the Leyden IMuseum, "Vol. II. 



