188 ZOOLOGICAL GEOGRAPHY. [part hi. 



confined to the Palasarctic region. In the jEgeriidce the genus 

 dSgeria is mainly Palcearctic. The Sphingidw have a wider 

 general range, and none of the larger genera are peculiar to any 

 one region. 



Coleoptera. — The Palaearctic region is the richest portion of 

 the globe in the great family of Carabidce, or predacious ground- 

 beetles, about 50 of the genera being confined to it, while many 

 others, including the magnificent genus Carabus, have here their 

 highest development, "While several of the smaller genera are 

 confined to the eastern or western sub-regions, most of the larger 

 ones extend over the whole area, and give it an unmistakable 

 aspect ; while in passing from east to west or vice-versa, allied 

 species and genera replace each other with considerable regu- 

 larity, except in the extreme south-east, where, in China and 

 Japan, some Oriental forms appear, as do a few Ethiopian types 

 in the south-west. 



Cicindelidae, or tiger-beetles, are but poorly represented by 

 about 70 species of the genus Cicindela, and a single Tetracha 

 in South Europe. 



Lucanidas, or stag-beetles, are also poor, there being represen- 

 tatives of 8 genera. One of these, ^Esalus (a single species), 

 is peculiar to South Europe, and two others, Cladognathus and 

 Cyclopthalmus, are only represented in Japan, China, and Thibet. 



Cetoniidae, or rose-chafers, are represented by 13 genera, 

 two of which are peculiar to South Europe (Tropinota and 

 Heteroc/iemis), while Stalagmosoma, ranging from Persia to 

 Xubia, and the fine Dicranocephalus inhabiting North China, 

 Corea, and Nipal, may also be considered to belong to it. The 

 genera Trichius, Gnorimus, and Osmoderma are confined to the 

 two north temperate regions. 



Buprestidae, or metallic beetles, are rather abundant in the 

 warmer parts of the region, 27 genera being represented, nine 

 of which are peculiar. By far the larger portion of these are 

 confined to the Mediterranean sub-region. A considerable 

 number also inhabit Japan and China. 



The Longicorns, or long-horned beetles, are represented by 

 no less than 196 genera, 51 of which are peculiar. They are 



