166 MR. F. WALKER ON INSECTS FROM MADAGASCAR. [May 12, 



Coleoptera have been discovered and described by French natura- 

 lists ; and Boisduval, in his ' Faune Entomologique de Madagascar, 

 Bourbon et Maurice,' has characterized the more conspicuous Lepi- 

 doptera; Bigot has described several Diptera; and Coquerel has 

 ascertained the habits of a few species of other insect classes. 

 While expecting the arrival of large collections of insects from this 

 island, I have availed myself of the kindness of Dr. Sclater to give a 

 brief notice of some species collected by J. Caldwell, Esq.j near An- 

 tananarivo, the capital of Madagascar. 



Coleoptera. 

 Cybister. Two or three species of this genus. 



POLYBOTHRIS AUROPICTA. 



This is one of the species of Buprestidce, with dilated elytra, which 

 are peculiar to Madagascar. 



Apoderus. a large and handsome species. 



Orthoptera. 

 Ac H ETA. One species. 



(Edipoda. One species. 



Phymatius morbillosus. 



Mantis. One species. 



Neuroptera. 

 ^SCHNA. One species. 



LiBELLULA. Two SpCCicS. 



Hymenoptera. 



XyLOCOPA jESTUANS. 



This also inhabits Hindustan and the islands of Sumatra, Celebes, 

 and Aru. 



Hemiptera, 



Lyg^us gonsentaneus, u. s. 



Diplonychus. One species. 



Notonecta. One species. 



Belostoma. One species. 



Lepidoptera. 



acherontia atropos. 



Madagascar and the two neighbouring isles seem to be the central 

 habitation of this species, whence it extends on the one band along 

 the coasts of Africa and of West Asia and through Europe, and on 



