50 THE AG1U CULTURAL PESTS OF INDIA. 



, inhabits Melville Island, on the north coast of 

 Australia ; is about 2 J inches long. It burrows into the 

 stems of plants, and causes them to wither. See Cricket ; 

 Gryllida3. 



Cynips. The gall-producing insects are numerous and 

 of great variety in the forests of the North - Western 

 Provinces. They puncture and lay their eggs in large 

 numbers in the fruits, seeds, and leaves of plants, and the 

 excrescences are known as galls. Cynips of the common 

 gall is the Cynips gallse tinctoria, Linn. Another species 

 is C. quercus folii, Linn., and a third is the C. quercus 

 tojoe, Fair. R. T. See Galls. 



Deiopeia pulchella is widely distributed, and occurs in 

 India, Its caterpillars feed on the kernel of the seed of 

 the Phyrostigma venenosum, which contains the poison- 

 ous principle Casrenia, and its pupae have been found 

 entrapped in the centre of the hard bean. The excre- 

 ment of its larvae contains the principle of the bean 

 unaltered. 



Delphax saccharivora, the cane spittle-fly of Grenada 

 and British Honduras, ravages the sugar-cane there. It 

 has not been observed in India. 



Depressaria gossipiella attacks the cotton plant of 

 India. See Cotton ; Gossypium. 



Dermestes. See Coleoptera, 



Diatraea sacchari. In the Mauritius, sugar-cane is 

 injured by the Proceras sacchariphagus, which Mr. J. O. 

 Westwood has supposed may be identical with the 

 Diatraea sacchari, Guilding, and Phalsena saccharalis or 



