490 GEOGRAPHICAL ZOOLOGY. [part iv. 



determination of the genera, but tliere can be little doubt that 

 most of them represent important facts in distribution. 



The Kearctic region is comparatively poor in Carabidse. Its 

 more important peculiar genera are, — Dicalus (22 sp.), Fasimachus 

 (17 s]:).),Uur7/tricJms (Osp.), Sphceroderus (7 sp.), Pinacodera (6 sp.), 

 and others of smaller extent, about 30 in all. It also possesses 

 representatives of a considerable number of Palaearctic genera, 

 as already indicated ; and a few of South American genera, of 

 Avhich Hclluomorplia awik Galcrita are tlie most important. 



The Neotropical region is very rich in peculiar forms of Cara- 

 bida3, as in almost all other great groups. It possesses more than 

 100 peculiar genera, but about 30 of these are confined to tlie 

 South Temperate sub-region. The more important peculiar genera 

 of Tropical America are, — At/ra (14-4 sp.), Ardistomus (44 sp.), 

 Scliizofjcnius (25 sp.), Fclccium, (24 sp.), Calophena (22 sp.), 

 Ctcnodactyla (7 sp.). Among the Chilian and South Temperate 

 peculiar forms are, — Antarctia (29 sp.), Scdodontis (10 sp.), Tropi- 

 dopUrus (4 sp.). Among the Neotropical genera with outlying 

 species are, — Pachytdcs (50 sp.), one of which is West African ; 

 Selejiophorus (70 sp.), with 4 African, 4 Oriental, and 1 from New 

 Caledonia; Fga (11 sp.), with one in the East Indies, and one in 

 New" Caledonia ; Galcrita, with 36 American species, 8 African, 

 and 3 Indian ; Ccdlida and Tetragonodcrus, mostly American, 

 but with a few African, Oriental and Australian species ; and 

 Fscudoinorplia, common to America and Oceania. 



The Australian region is almost equally rich, possessing about 

 95 peculiar genera of Carabida?, no less than 20 of which are con- 

 fined to New Zealand. The most important are, Carcnum, Fro- 

 mccodcrus, Scarap]iitcs, Notonomus, ^Enigma, Sphallomorp)ha, Sil- 

 pliomorpha, and Adelotopus. The gigantic Catadromus has 4 

 Australian species and 1 in Java ; Homalosoma has 31 species 

 in Australia and New Zealand, and 1 in Madagascar. Celebes 

 and New Guinea have each peculiar genera, and one is common 

 to Australia and the Cape of Good Hope. 



The Oriental region possesses 80 peculiar genera, 10 of which 

 are confined to Ceylon. The more important are, — Fericallus, 

 Flanctcs, and Mormobjce. Distrigns is also characteristic of this 



