320 ZOOLOGICAL GEOGRAPHY. [part hi. 



Distrigus, the latter having a single species in Madagascar. 

 There are 80 genera of this family peculiar to the region, 10 

 of which have only been found in Ceylon. 



Among the Lucanidse, or stag-beetles, Lucanus, Odontolabris, 

 and Gladognatlius are the most characteristic forms. Sixteen 

 genera inhabit the region, of which 7 are altogether peculiar, 

 while three others only extend eastward to the Austro-Malayan 

 sub-region. 



The beautiful Cetoniida3, or rose-chafers, are well represented 

 by Bhomborhina, Heterorhina, Clinteria, Macronota, Agcstrata, 

 Chalcothca and many fine species of Cctonia. There are 17 

 peculiar genera, of which Mycteristes, PlicccUmus, Plecirone, and 

 Rhagopteryx, are Malayan ; while Narycius, Clerota, Bomhodes, 

 and CJiiloloha are Indian. 



In Buprestid?e — those elongate metallic-coloured beetles whose 

 elytra are used as ornaments in many parts of the world — this 

 region stands pre-eminent, in its gigantic Catoxantha, its fine 

 Chrysocliroa, its Indian Stcrnocera, its Malayan Chalcophora 

 and Bdionota, as well as many other beautiful forms. It 

 possesses 41 genera, of which 14 are peculiar to it, the rest 

 being generally of wide range or common to the Ethiopian and 

 Australian regions. 



In the extensive and elegant group of Longicorns, the Oriental 

 region is only inferior to the Neotropical. It possesses 3G0 

 genera, 25 of which are Prionida?, 117 Cerambicidfe, and 218 

 Lamiidae ; — about 70 per cent, of the whole being peculiar. 

 The most characteristic genera are Bhaphidopodus and JEgosoma 

 among Prionidie ; Neoceramhyx, Euryarthrum, Pachyteria, Acro- 

 cyrta, Tetraommatus, Chloridolum, and Pohjzonus among Ceram- 

 bycidse; and Ccelostcrna, Bhytidopliora, Batoccra, Agelasta, and 

 Astathcs among Lamiidte. 



Of remarkable forms in other families, we may mention the 

 gigantic horned Chalcosoma among Scarab^eidte ; the metallic 

 Campsostcrnus among Elateridre ; the handsome but anomalous 

 Trictcnotoma forming a distinct family ; the gorgeous Pachy- 

 rhynehi of the Philippine Islands among Curculionida? ; Diurus 



