228 On the Geographical Distribution of Insects. 



liar to the coasts of Asia Minor and the Archipelago. Pa- 

 pilio Alexanor is found only here, as well as a new species of 

 the same genus (P. Hospiton, Gene) discovered lately in Sar- 

 dinia. 



5th, Beaton of the Caucasus and Caspian Sea, which com- 

 prehends Southern Russia, the Crimea, Georgia, Circassia, 

 Armenia, a part of the Steppes of Kirguises, and the country 

 situated between the sea in question and that of Aral. Its 

 climate, soil, and vegetation, the latter rich in alkaline plants, 

 gi\e it a close relation to the preceding region. The same 

 genera appear, mingled with a few new ones. The Cauca- 

 sian portion, properly so called, appears particularly prolific 

 in beautiful species of Carabus, many of which have been lately 

 discovered by Russian naturalists.* 



6th, The Arabian Peninsula, respecting which we possess 

 only very imperfect entomological notices. Its Coleoptera and 

 Lepidoptera, as far as we can judge from the information re- 

 garding them, communicated by Forskael in the last century,t 

 and more recently by MM. Hemprich and Ehrenberg,+ differ 

 only specifically from those of the Mediterranean region, and 

 the greater part reappear in Egypt, Nubia, Abyssinia, and 

 even in Dongola. 



7th, Persia, Caboul, and Afganistan. — It is nearly impossi- 

 ble to assign limits to this region, of which we know scarcely 

 any thing entomologically speaking. Persia, which was visited 

 by Olivier towards the end of last century, appears to possess, 

 in a great measure, the same genera as the Mediterranean 

 region, Avith pecvdiar species. 



Between this region on the west, the frontiers of China on 

 the east, the Altai Mountains on the north, and the Himalaya 

 on the south, lies an immense territory, Tartary and Mongo- 

 lia, which no entomologist has yet visited. If we consider the 

 Himalaya as forming part of it, we know that this chain, the 

 highest on the globe, presents a mixture of Indian and Euro- 



• See Menctrius, Catalogue des objects d'histoire naturelle recueillis dans 

 un voyage fait an Caucase, &c., and the Bulletin de la Society des Nat. de 

 Moscou. 



t Dcscriptiones animalium quae in itinera Oriental! observavit, &c. 1775. 



X Klug, Symbolae Physical, &c. In fol. 



