67 
Sp. 2. Prioscelis serrata, Fabricius (Tenebrio s.). 
Sp. 3. Prioscelis Raddoni, W. P. antennis brevibus articulo ultimo 
quadrato ; tibiis anticis curvatis, apice dilatatis ; posticis intus 
serrulatis extus ad apicem subitd dilatatis, prothorace transverso- 
quadrato, punctis duobus minutis distantibus versus marginem 
posticum. 
Long. corp. lin. 14. 
Hab. in Guinea. Mus. Westw. Commun. D. Raddon. 
Sp. 4. Prioscelis crassicornis, W. P. atra glabra, antennis lon- 
gioribus crassioribus femoribus omnibus ante apicem interne biden- 
tatis, tibits compressis. 
Long. corp. lin. 13. 
Hab. in Guinea. Mus. Westw. Commun. D. Raddon. 
Pycnocervus, Hope, MSS. 
(PacuyLocerus, Hope, Col. Man. iii. p. 186.) 
Sp. 1. P. Westermanni, Hope, 1. c. (An Ten. sulcatus, Fabri- 
ctus ?) 
Sp. 2. P. costatus, Silbermann (Odontopus c., Rev. Ent. Col., 
No. 4 
Opontopus, Silberm. 
Sp. 1. O. cupreus, Fabricius (Tenebrio cu.). O. violaceus, Sild. 
var.? 
Sp. 2. O. tristis, W. O. chalybeo-ater, capite et prothorace opacis, 
tenuissime punctatis, hujus marginibus lateralibus crenulatis, ely- 
tris subviridibus magis nitidis valde et irregulariter punctatis, 
sutura lineisque tribus tenuibus longitudinalibus levibus, femoribus 
simplicibus, tibiis anticis apicem versus intus dente instructis, tibiis 
posticis curvatis, intus sinuatis. 
Long. corp. lin. 124. 
Hab. Senegallia ? ‘Mus. Westw. 
Sp. 3. O cyaneus, Fabricius (Tenebrio cy.). 
Sp. 4.? O. speciosus, Dejean (Pezodontus sp.). 
MeErTA.LLonorvs, Gray. 
Sp.1. M. denticollis, Gray, in Griff. An. K., Ins. Pl. LXXX. f. 4. 
PrauceEna, Laporte, Hist. n. An. Art. 
Sp. 1. Pr. rubripes, Laporte. 
Sp. 2. Pr. carbonaria, Klug, in Erman’s Reise. 
Sp. 3. Pr. marginata, Fabricius (Helops m.). 
Various observations were added by the author relative to the 
synonymy and generic position of the species above described, and 
of other tropical African species described by Fabricius, Silbermann, 
