NEW APBICAN CUECTTLIONID^. 329 



black granules, each elytron rounded at the apex ; body beneath 

 and legs with numerous setse. 



Eeadily distinguished from the last by its broad prothorax, the 

 humeral angles not acute, and the absence of the four median 

 tubercles. 



DiCASTICUS CELATIJS. 



D. angustior, niger opacus ; prothorace subcylindrico, supra sequali, 

 granulis plurimis nitide nigris juxta suturam usque ad medium instructis. 

 Long. 4 in. 



Sab. Momboia, 



Narrower, black opaque ; rostrum with a raised median line ; 

 aerobes curved ; antennae blackish with grey setse ; first two joints 

 of the funicle equal ; prothorax rather longer than broad, the 

 sides slightly rounded, the base and apex equal in breadth, the 

 disk with several glossy black granules ; elytra as in the two 

 preceding, but with a regular superficies, substriate-punctate, 

 several small granules close to the suture confined to the basal 

 half; body beneath and legs pitchy, setulose. 



The narrower form and almost cylindrical prothorax suffice to 

 distinguish this species. In this genus and in many others the 

 scales are easily detached, but from what remains they appear, 

 under a strong lens, to have more or less a metallic green lustre ; 

 they are very small, but, although very close together, not con- 

 tiguous. 



• OSTBA. 

 Rostrum mediocre, apicem versus dilatatum, a capite separatum ; 

 scrobes apicales, superse breves eurvatse. Antennae graciles, scape pro- 

 thoracem attingente ; funiculus linearis, articulis elongatis ; clava parva, 

 distincta. Prothorax transversus, lobis ocularibus baud prominulis. Scu- 

 tellum parvum. Elytra ampliato-rotundata, prothorace basi baud latiora. 

 Femora mutica ; tibise baud uncinatse ; unguiculi liberi. Mesosternum 

 breve. Abdomen segmento secundo tertio longiore. 



If I am rigbt in placing this genus near Leptops it will be the 

 only African one of the " groupe,^' if we except Gyponychus, a 

 doubtful member however. The ocular lobes are only mode- 

 rately developed and are without vibrissse. As in Leptops, the 

 scrobes are visible from above. 



OSTEA NODULOSA. 



0. brevis, plerumque griseo-squamosa, supra tuberculato-fasciculata ; 

 rostro prothorace breviore. Long. 3 lin. 

 Kab. Madagascar. 



