160 



MK. J. S. BALY ON SOME GENERA 



Antennae very slender, filiform, equal to the body in length, 

 the second joiut very short, the third and fourth each equal in 

 length to the first ; front impressed just above the encarpse with 

 a deep fovea ; encarpse thickened, trigonate ; clypeus concave, 

 transversely sulcate. Thorax nearly twice as broad as long . 

 sides straight and sliglitly diverging from the base to beyond the 

 middle, thence obliquely rounded to the apex ; anterior angles 

 slightly produced, obliquely truncate, the hinder ones acute ; 

 upper surface couvex, very minutely puuctured ; disk impressed 

 with a broad transverse excavation, which terminates at some 

 distance from the lateral margin, but is more deeply excavated at 

 each end. Elytra oblong, convex, transversely excavated below 

 the basilar space, and again obsoletely on the outer disk about 

 its middle, the humeral callus thickened ; surface finely punc- 

 tured. 



2. GEnidea Jacobyi. Ariguste oblonga, postice paullo aiiipliata, 

 con.vexa, nigra, nitida, labro anteimisque flavis aut fulvis, pectore 

 abdomineque rufo-piceis ; thorace transversim sulcato, sulco utrinque 

 foititer foveolato ; elytris oblongis, infra basin transversim excavatis, 

 fere impunctatis, rufis, apice plus minusve nigris. Long. 4-4^ lin. 



Mas. Clypeo transversim concave ; labro ampliato, concavo ; abdominis 

 segmento anali trilobate, lobo intermedio ad apicem leviter excavate. 



Fem. Clypeo transversim sulcato ; labro paullo incrassato. 



Var. A. Labro nigro aut nigro-piceo ; elytris totis nigris. 



Sah. Penang; Malacca; Borneo, Sarawak; Sumatra (Wal- 

 lace). 



Antennae slender, equal to the body in length, and clothed with 

 erect hairs in the d , rather shorter in the 2 I clypeus in the 

 (S transversely trigonate, concave ; labrum in the same sex 

 dilated, rather deeply concave ; clypeus in the $ deeply sulcate 

 transversely, the labrum thickened. Thorax rather more than 

 one half broader than long ; sides straight and slightly diverging 

 from the base to beyond the middle, thence converging to the 

 apex ; disk deeply excavated transversely, the sulcation termi- 

 nating pome distance within the lateral margin, more deeply 

 excavated at each end. Elytra oblong, convex, transversely 

 excavated below the basilar space, very minutely punctured, the 

 punctures only visible under a lens. 



