50 



the Fire-flies ; there is little doubt, however, 

 that many more are to be discovered in the inte^ 

 rior of India. The Cicadse appear to abound in 

 tropical climes, and the species are numerous : 

 many of those brought from Sumatra by SIR 

 STAMFORD RAFFLES were very large, and, from 

 the number of specimens, appear to have been 

 extremely common. The males make a loud 

 chirrupping noise, and in New Holland are 

 known by the name of Razor Grinders, from 

 their singular note. The plant-lice are minute., 

 and peculiar to each species of plant ; it, there- 

 fore, requires a knowledge of Botany to become 

 acquainted with them ; they are also very diffi- 

 cult to preserve : under these disadvantages it 

 will be necessary to procure specimens of the 

 plants on which they are found, and such me- 

 moranda should be made at the time as will en- 

 able the botanist to identify the species. It would 

 also be advisable to preserve the different species 

 in separate pill boxes, with a number that may 

 correspond with the observation, and likewise 

 agreeing with the number of the plant. The 

 Coccus, or cochineal insect, has much the ap- 

 pearance of the buds of plants, as it attaches 

 itself so close to the smaller branches ; these 

 scale-like animals may be detached from the 



