Uo, 6. ] -^ Conspectus of Insects. 169 



201. Dactylopius arlonidum Linn. (Coccidse). — Said to attack coffee 

 {Coffea araJjica) , ?iho a. ppeeies of Cedrela, seweval sTpecies oi Ftcus, a.ud 

 other trees in Mysore. 



2.02. Dacti/lopiMs cocotis Maskell (CoccidEe).^ — A minute insect, with 

 white cottony secretion. It attacks the leaves of cocuanut {Cocos nuci- 

 fera) trees in the Laccadive islands, hut is not thoug-ht to do much 

 damage. 



203. Pseudo-pulvinaria sikkimensis Atkinson.— Said to attack cin- 

 chona [Chinehona sp.) in Sikkim, hut not thoug'ht to do any serious 

 damage, 



Orthoptera. 



Acrid) da. 



204. AcRiDiUM PEREGRiNUM Oliv. (the locust of North- West 

 India). — Periodically invades the fertile plains of India from its home in 

 the sandy plains of Rajputana, Sind, and the Punjab. It is also pre- 

 valent throughout the whole of South-Eastern Ash and Northern Africa. 

 The full-grown insect is a big thick-set grasshopper, with short antennae. 

 When it first acquires its wings it is salmon pink in colour, but as it 

 gets older it becomes at first yellowish and afterwards dull purple in 

 tint. It forms vast flights, which are sometimes thick enough to hide 

 the sun from sight as they pass in the air. The young are little black 

 and yellow wingless grasshoppers which emerge from the eggs that are 

 laid in the ground. The insect feeds voraciously throughout the whole 

 of its existence, and both in its wingless and winged stages does much 

 damage to green standing crops of all kinds over wide areas in India. It 

 also attacks the foliage of trees, and in fact almost every kind of green 

 plant. 



205. AcRiDiUM succiNCTUM Linn. — There is evidence to show that 

 this is the insect which did most of the damnge to standing crops in the 

 Deccan and Konkan in the Bombay locust invasion of 1882-83. It is 

 the locust which was reported in the Fatna district in 1877, and which 

 has since been reported as destructive to crops in Murshidabad. It is 

 superficially much like Acridium peregrinttm, but belongs to the damper 

 and more fertile regions of India. 



206. Acridium melanocorne Serv. — One of the Acrididse reported in 

 connection with the Madras locust invasion of 1878. 



207. Acridium cBviiginosum Burm. — One of the Acrididis reported in 

 connection with the Madras locust invasion of 1878. It has recently 

 been reported to have appeared in the Vizagapatam and Cuddapah 

 districts. 



208. Caloptenns eruhescens Walker, and C. caliginosiis Moore. — Two 

 of the Acrididse reported in connection with the Bombay locust invasion 



