wingless, and they are scale-like. The male is provided with 

 two wings, but as in aphides, their presence is not always 

 necessary for the formation of embryo. 



1.275. Coccinellid beetles are very useful in devouring 

 scale-insects and aphides. It should be remembered, how- 

 ever, that they are not invariably friends to the cultivator. 

 The larvae of Epilachna dodeca-stigma attack the leaves of 

 brinjal plants and sometimes do a great deal of damage. 



1.276. For aphides and scale-insects the Kerosine emul- 

 sion treatment generally proves most efficacious. One part of 

 Kerosine oil to 80 or 100 parts of water should be used. The 

 oil should be mixed up with equal quantity of fresh-milk or 

 butter-milk (ghol) and thoroughly worked up with a syringe 

 or shaken up in a bottle to saponify the oil, before it is mixed 

 up with water and applied with a spray-pump. 



CHAPTER CXXIV. 



INSECTS INJURIOUS TO INDIAN CROPS. 



Paddy. 



1. Cockchafer larvae (Melonthini, order Coleoptera.) 



2. Lasioderma testaceum, or the cheroot weevil 



(Ptinidae, Do.) 



3. Calandra Oryzae (Curculionidae, Do.) 



4. Platydactylus sexspinosus (Scolytidae, Do.) 



5. Hispa Aenescens (Chrysomelidae, ... Do.) 



6. Aulacophora abdominalis (Chrysomelidae, ... Do.) 



7. Chaetocnemis basalis (Chrysomelidae, ... Do.) 



8. Suastus gremius (Hesperidae, or skippers, ... Lepidoptera). 



9. Limacodidae caterpillars (Nettle-grub-defolia- 



tor, Do.) 



10. Achaea melicerte (Noctues, ... ... Do.) 



ir, Heliothes armigera (Noctues, ... .., Do.) 



