On the Geographical Distribution of Insects. 231- 



f orms of New Guinea or of Europe, with the absence of entire 

 families, such as that of the Danaides, likewise of the genera 

 Papilio, Pieris, &c. The Nymphalides predominate over all 

 the other families, and comprise a pretty considerable number 

 of particular species. 



15th, New Holland, Van Diemen-s Land, New Caledonia, 

 and New Zealand. — This region has a very distinct entomo- 

 logy. Notwithstanding its proximity to Noav Guinea, New 

 Holland differs from it greatly in its insects. In the latter we 

 find neither Danais, Idea, Leminitis, nor a multitude of genera 

 of the tribe Nymphalides. Magnificent species of Pieris, some 

 Papilio and Satyrus, compose the principal part of the Diurnal 

 Lepidoptera, and the noctm'nal kinds include many fine species, 

 particularly among the Bombycites. In Coleoptera, numerous 

 genera are exclusively found here ; such as Pamborus, Ano- 

 plognathus, Diphucera, Ryssonotus, Lamprima, Macrotops, 

 Adelium, and Paropsis. Lamprima, although very abundant 

 in the Island of Norfolk, does not appear to exist in New Zea- 

 land nor in New Caledonia ; this latter, likewise, possesses 

 Therates. These two islands, in other respects, are infinitely 

 less rich in species than New Holland. 



16th, Upper-Egypt, Nubia, Abyssinia, and the neighbouring 

 countries on the west ; a region but little known, like the 

 greater part of the other African countries. Egypt does not 

 appear rich in insects, particularly in Lepidoptera. Melasomas, 

 among which are to be noticed the genus Eurychora, Pimelia 

 coronata, Graphipterus, and a great number of Gymnopleurus 

 of great brilliancy, are worthy of being signalized among the 

 Coleoptera. Nubia and Abyssinia are much richer, a circum- 

 stance to be ascribed to their soil, which is more wooded and 

 better watered. We there find, in particular, a multitude of 

 Anihocharis and other Pierides. The species in general, as 

 has already been intimated, have the closest relation to those 

 of the Arabian Peninsula, and some of the Lepidoptera extend 

 as far as Senegal. 



17th, Jiegion south of the Atlas, extending to the great de- 

 sert, and including Belidulgcrid, the empire of Morocco, the 

 islands of Madeira, and the Canaries. Wc scarcely know any 

 thing of the continental part of this region. Madeira and the 



