Longicornia from Africa and Madagascar. 319 



longioribus (?), articulo tertio quam quarto distincte longiori. 

 Long. 14 ; lat. 5\ mm. 



Hab. Angola. 



Head impunctate, witb the front a little longer than broad, 

 with a median raised line from base to vertex, the latter with 

 a f) -shaped impression. Prothorax almost impunctate, with the 

 sides obtusely angulate in the middle ; gi*ey, with two fulvous 

 vittae along the disk, and one, broader, on each side enclosing one 

 or two grey spots. Elytra punctured ; with a lead-grey pubescence, 

 interspersed with tawny ; apices rounded. Body underneath and 

 legs with a rather thin grey pubescence. Antennae greyish pubes- 

 cent, with the third joint distinctly longer than the fourth. 



Plecteoscapus (Barceince), n. g. 

 Head deeply and triangularly concave between the antennal 

 tubercles ; these very prominent and separated by a narrow 

 channel at their base ; front nearly flat, indistinctly marked off 

 from the epistome, the latter with its inferior margin tri-sinuate. 

 Eyes moderately large. Antennae much shorter than the body : 

 with the scape stout and somewhat deformed, narrow at the base, 

 and prolonged at the apex on the dorsal side into a rather strong 

 and sharp recurved spine ; third joint shorter than the scape, 

 nodulose externally at the apex ; fourth joint a little longer than 

 the third, thickened towards the apex ; fifth and following joints 

 subequal, fitting closely into each other, and of nearly uniform 

 thickness throughout, with the exception of the last joint which 

 narrows towards the apex. Prothorax about as long as it is broad 

 in front, but shorter than its width at the base ; provided on the 

 middle of each side with a shai-p and stout conical tubercle ; and 

 on the disk anteriorly with two very small and widely separated 

 tubercles. Elytra with the shoulders each projecting forwards in 

 an obtuse conical process ; with a large obtuse hump or swelling on 

 the disk of each elytron behind the base, with a feeble depression 

 behind the hump ; apices obliqi;ely truncate, with the sutural 

 angles dentate. Legs subequal ; femora moderately stout, some- 

 what thickened towards the middle. Intermediate tibias deeply 

 notched at about the middle of their length. Claws of the tarsi 

 divergent. Prosternal process feebly arched, very narrow in the 

 middle, widely enough expanded towards the posterior extremity. 

 Mesosternal process rather narrow, gradually attenuated pos- 

 teriorly, and trmicate at its extremity. 



This genus seems to be best placed near Tcmnoscclis. 



