472 MR. H. W. BATES ON INSECTS FROM MADAGASCAR. [NoV. 24^ 



acerate, entirely spined tension-spieulum from the dermal membranci 

 X660. c. A subarcuate, acerate, entirely spined spiculum from the 

 outer surface of an ovarium, X 660. 



15. S.alba. — a. A spiculum of the skeleton, Xl08. I. A fusiformi-acerate, 



truncately spined tension-spieulum from the dermal membrane, X 660, 

 c. An entu-ely and recurrately spinous cylindrical spiculum from the 

 surface of an ovarium, X400. 



16. S. cerehellata. — a. A spiculum of the skeleton, Xl08. b. An entirely 



spined cylindrical spiculum from the surface of one of the ovaria, X 400. 



17. S. Lordii. — a. A spiculum of the skeleton, X 108. h. An entirely spined 



fusiformi-cylindrical spiculum from the sm-face of one of the ovaria, 

 X660. 



18. S. Dcncsoni. — a. A spiculirm of the skeleton, X 108. b. A subcylindrical, 



entirely spined spiculum from the surface of an ovary, x400. 



19. S. cinerea. — a. A spiculum of the skeleton, X 108. b. An entirely spined 



acerate spiculum from the surface of an ovary, X 660. 



20. S. Carteri. — a. A spiculum of the skeleton, X108. h. A small fusiformi- 



acerate spiculum from the surface of an ovaiy, X 108. 



21. S. paupemda. — a. A spiculum of the skeleton, X 108. b. An acerate 



spiculum from the surface of an ovary, X 108. 



2. On SOME Insects collected in Madagascar by 

 Mr. Caldwell. By H. W. Bates, Esq. 



A small collection of insects made in Madagascar by Mr. Caldwell 

 (the second remitted by that gentleman) having been placed in my 

 hands for examination by Dr. Sclater, I now communicate the results 

 to the Society. Unfortunately the specimens arrived in a very dila- 

 pidated condition, owing to their not having been securely pinned in 

 the box ; so that many are not now in a state to be identified, thus 

 reducing the number of species in our already scanty list. Twenty- 

 seven only are here passed in review, which, added to the twenty-one 

 named from the former collection by Messrs. Hewitson and Walker, 

 make the small total of forty-eight. A rather large number of in- 

 sects, however, chiefly of the orders Coleoptera and Lepidoptera, have 

 now been described from Madagascar, sufficient, perhaps, to give us 

 a pretty fair idea of the entomological fauna of the island. It has 

 occurred to me, therefore, that it would be worth while to analyze 

 the whole list, so as to ascertain how far this department confirms 

 what has been advanced by the cultivators of other branches of zoo- 

 logy, especially ornithologists, as to the very high degree of pecu- 

 liarity of the fauna. 



The literature of the entomology of Madagascar dates from towards 

 the end of the last century, when Olivier in his ' Entomologie ' 

 figured and described a small number of Coleoptera from the island, 

 which had been deposited by Commerson in the Museum of the 

 Jardin des Plantes. In 1830 an ardent entomological collector, 

 Justin Goudot, visited the island and reaped a rich harvest ; in fact, 

 nearly all that is known in Europe even now of the insects of Ma- 

 dagascar is the result of the researches of this practised hand. 

 Goudot's expedition gave rise only to two special works, and these 

 unfortunately were very limited : one was King's * Insekten von Ma- 



