48 THE AGRICULTURAL PESTS OF INDIA. 



Cotton. See Gossypium. 



Crickets, house, field, and mole, belong to the order 

 Orthoptera, and family Gryllidrc. See Cylindrodes ; Gryl- 

 lidiB ; Schizodactylus. 



Crocodiles are numerous in the rivers of Africa and 

 Southern and Eastern Asia, and are of two families, 

 Crocodilidre and Gavialida3 ; another family, the Alliga- 

 toridse, are reptiles of America. Crocodiles evince great 

 cunning, and carry off many people, both young and old, 

 and devour innumerable fish. Man does not escape ; and 

 people in boats, as also goats, dogs, and ponies venturing 

 near the river-sides, are seized by their great jaws, or are 

 swept into the water by their tail. There has not been 

 adopted any systematic mode of destroying them, yet it 

 would not be difficult to discover their nests and destroy 

 their eggs. Their nests rise two feet out of the water, and 

 the Eev. Bancroft Boake mentions that Mr. Symonds 

 in Ceylon found 150 eggs in one nest. A net of strong 

 rope with a hook is used to catch them. 



Crotalaria juncea, Linn., the san hemp, is sometimes 

 used to clean land, as the closeness of its growth stifles 

 all weeds which may attempt to compete with it. D. & 

 F. Tern. San. 



Culex is a genus of the Culicidse, gnats and mosquitos,. 

 both of them painfully harassing to man and animals. 

 Mosquito, gnat, midge are popular names applied to 

 different insects of the family Culicidse. The females 

 only are greedy of blood ; if this fail them, they live like 

 the males on the juices of flowers. The females alone 

 pierce the skin, by means of an auger with teeth at the 

 end ; they suck the blood, and, before they fly away,, 

 distil a liquid venom into the wound. The bite seems 

 to have an anaesthetic effect, which does not cause it to 



