Longicornia Malayana. 225 



Bybe. 



Characteres ut in Parmena, sed prothorax subquadratus, late- 



ribus muticis et leviter rotundatis, et elytra breviter ovata, 



medio valde convexa. 



The prothorax in Parmena, although somewhat variable, always 



shows traces of the lateral tooth ; the elytra, however, never rise 



beyond tl^e line of the prothorax, and are always elongate-ovate. 



Tlie curious little insect forming the type of Bybe is somewhat 



intermediate in appearance between Parmena and Microcleptes. 



Bybe parmenoides. (PI. X. fig. 7.) 



B. fusca, vix pubescens, nigro-setosa ; fenioribus basi et tarsis 

 rufo-castaneis. 



Hab. — Sarawak. 



Dark reddish-brown, almost without pubescence, but with 

 scattered black setose hairs ; head transverse in front, finely punc- 

 tured ; lip short, pale rufous ; prothorax closely and coarsely 

 punctured, scarcely broader than the head, the posterior border 

 narrower than the anterior; scutellum extremely minute, acutely 

 triangular ; elytra about three-fifths the total length of the body, 

 covered with very large approximate punctures, strongly rounded 

 at the sides, broadest at about the middle, then tapering rapidly 

 to the apex, which is rounded, the shoulders nearly obsolete ; 

 body beneath and legs chesnut-brown, with the bases of the fe- 

 mora and the tarsi reddish-chesnut ; antennae about as long as 

 the body, the third and fourth joints of equal length and about 

 twice as long as any of the following joints. 



Length 2 lines. 



The following genus is of somewhat doubtful affinity ; I insert 

 it provisionally at the end of the Dorcadion'wce : — 



Trachystola. 

 Trachyslola, Pascoe, Journ. of Entom. i. 350. 

 Caput mediocre, subrotundatum, fronte convexum ; tuberibus 

 antenniferis validis, breviusculis, remotis. Oculi late emar- 

 ginati, vertice subapproximati. Labrum breve. AntenncB 

 corpore breviores, baud fimbriatae ; scapo elongato, apicem 

 versus sensim incrassato, obsolete cicatricoso ; articulo tertio 

 longiore ; caeteris gradatim decrescentibus. Prothorax sub- 

 transversus, apice angustior, utrinque medio spinosus. Ely- 



VOL. III. THIRD SERIES, PART III. SEPT. 1866. Q 



