3*20 
ZOOLOGICAL GEOGKAPHY. 
[PART III. 
EHstrigus, 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 Lucanidae, or stag-beetles, Lucanus, Odontolabris, 
and Cladognathus 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 Cetoniidse, or rose-chafers, are well represented 
by Bhomborhina, Heterm'hina, Clinteria , Macronota , Age-strata, 
Chalcothea and many fine species of Cetonia. There are 17 
peculiar genera, of which Mycteristes, Phcedimus, Plectrone, and 
Rhagopteryx , are Malayan ; while Narycius, Clerota , Bomhodes, 
and Chiloloba are Indian. 
In Buprestidse — 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 
Chrysochroa, its Indian Sternocera , its Malayan Chalcophora 
and Belionoia , 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 360 
genera, 25 of which are Prionidae, 117 Cerambicidae, and 218 
Lamiidse; — about 70 per cent, of the whole being peculiar. 
The most characteristic genera are Bhaphidopodus and ASgosoma 
among Prionidne ; Neoccmmbyx , Euryar thrum, Pachyteria , Aero - 
cyrta, Tdraonnnatus , Chloridohim, and Polyzonus among Ceram- 
bycidae; and Ccdostema , Bhytidophora, Batocera, Agelasta , and 
Astathes among Lamiidce. 
Of remarkable forms in other families, we may mention the 
gigantic horned Ckalcosoma among Scaraba?ida3 ; the metallic 
Campsostermes among Elateridse; the handsome but anomalous 
Trietenotoma forming a distinct family; the gorgeous Paehy- 
rhynchi of the Philippine Islands among Curculionidie ; Diurus 
