( Irthoptera (Grasshoppers). 



SOME SOI 111 INDIAN INSECTS. ETC. [l HAT. II. 



Wings permanent, with strong Neuroptera (Lace- wing 



ins in central area. 

 Wings soon shed, without cross Isoptera (Termites). 



veins in central 

 ["he two pairs of wings differing 9 

 I in thickness of material. 



two pairs of wings similar in 10 

 thickness of mat 

 I iist pair of wings narrow, mem- 

 1 than body, 

 sometimes used as true wings in ]' 

 flight; metamorphosis incom- 

 plete. 

 ; first pair ol wings usuall) bro 

 horny, projecting little if at all i 



beyond body, kept erect during ,, , ,„ x , . 



1 ( oleopti ra 1 Beetles). 



flight which is accomplished 1 



solely by the second pair of | 



wings ; metamorphosis complete. 



Minute insects, forewings narrow | 



I rhysanoptera (Thrips). 



and oar-shaped ; metamorphosis 



impleti ; no sting. I 



Minute to large insects, fon wings 



usuall) 5S triangular • | 



1 1\ menoptera ( >\ asps etcA. 

 a sting often present ; metam 



phosis ' on. 

 I hi re are numerous exceptions even to an artificial kej of this 

 sort, as. for example, all the wingless tonus (such as ants, beetles. 

 termites, etc.) ol the Orders which normallj possess wings. It is. 

 therefore, hardly necessary to repeat here that it is easier to place 

 insects into groups arranged around typical forms than it is to 

 separate them exactly by any hard-and-fast rules. 



1 ivei loin hundred thousand different kinds of insects have been 



described from all parts of tile world and of these probably about 

 fifteen thousand are known from Southern India, where at least an 

 equally large number remain to be discovered and described. 



1 '■ examination and comparison we can place an insect in its 

 appropriate Order. Family and often its Cicnus and Species, that 

 is, we can say that it resembles other examples so closel) that it 

 may be considered identical. But, having done this, we arc no 

 nearer knowing whether any information has already been pub- 

 lished regarding this particular insect. Perhaps we find it damag- 

 v and wish to ascertain whether it has been noted before 

 as .1 pest and what remedies have been found efficacious. This 



10 , 



