112 Linnean Society. [June 1, 



17. P. armatuSjDe].; P. cornutus,Chevro\. Senegal. 



18. P. curvicornis, Chevrol. ; P. cornutus, var.t, Chevrol. Senegal. 



19. P. Shucfcardi, Westw. South Africa. 



20. P. lineatus, Thunb. Cape of Good Hope. 



21. P. affinis, Westw. On the authority of the British Museum Cata- 

 logue Mr. Westwood is now enabled to give Africa as the habitat of 

 this species ; but he suggests that there may be some mistake as to lo- 

 cality, and that the insect may really be Indian, and not specifically di- 

 stinct from the following, P. cognatus. 



b. Species Indicae. 



22. P. cognatus, rufo-castaneus nitidus punctatus, elytris singulis plaga 

 magna nigra, capite antice linea tenui impressa : vertice impressionibus 

 duabus semicircularibus, antennarum clava subovata basi extiis in ha- 

 mum producta. — Long. corp. lin. 4. 



Hah. in Bengala. In Muss. D. D. Melly et Westermann. 



23. P. HardwicMi, Westw. Nepaul. 



24. P. Saundersii, fulvo-rufescens subnitidus punctatus, capite thoraceque 

 obscurioribus, antennarum clavd oblongo-ovata basi extiis in hamum 

 setigerum producta. — Long, corp, lin. 3^. 



Hab. in India Orientali. Mus. D. W. W. Saunders. 



25. (Sp. ined.), Latr. Isle of France. 



Ohs. P. rujicollis, Fabr., is given by Dr. Erichson as one of the Malachii, 

 and as identical with his Collops 4-maculatus. 



2. Platyrhopalus, Westw. 



1 (26). P. denticornis, Westw. East Indies. 



2 (27). P. umcolor, Westw. East Indies. 



3 (28). P. acutidens, Westw. Nepaul. 



4 (29). P. Westtuoodii, Saund. East Indies. 



5 (30). P. angustus, Westw. East Indies. 



6 (31). P. Melleii, Westw. Malabar. 



7 (32). P.aplustrifer,West\v. Bengal. Certainly belonging to this genus. 



8 (33), P. ? IcBvifrons, Westw. Senegal. 



9 (34). P. ? dentifrons, Westw. Senegal. 



3. Hylotorus, Dalm. 

 I (35). H . bucephalus, Gyll, Sierra Leone. 



4. Pentaplatarthrus, Westw. 

 1 (3G). P. paussoides, Westw. South Africa. 



5. Lebioderus, Westw. 

 1 (37). L. Goryi, Westw. 



6. Ceratoderus. 

 Corpus oblongum, depressura. Caput transverso-quadratum, postice collo 

 insti-uctum, disco inter oculos bi-impressum. Antenna quasi 6-articu- 



