2$2 INSECTS* 



dinal suture, but incumbent on or crossed over 

 each other ; as the Cock-roach, Locust, &c. 



3. Lepidopterous Insects (from KsTrig a scale, and 

 7TTkpov a wing) are those having four wings covered 

 with fine scales in the form of powder or meal ; as 

 in the Butterflies and Moths. 



4. Neuropterous insects (from vsvpov a nerve, and 

 TTTtpcv a wing) have four membranaceous, transpa- 

 rent, naked wings, in which the membranes cross 

 each other so as to appear like net-work. The tail 

 has no sting, but is frequently furnished with appen- 

 dices like pincers, by which the males are distin- 

 guished. The common Dragon-fly is the best ex- 

 ample that can be brought to illustrate this order ; 

 and the genus Phryganea forms an exception with 

 respect to the net-work appearance of the wings. 



5. Hymenopterous insects (from vu,rjv a membrane, 

 and wTfpoy a wing). The insects belonging to this 

 order have generally four membranaceous naked 

 wings : the neuters, however, in some of the genera, 

 and in others the males or females, want wings. 

 The wings do not so much resemble net-work as 

 those of the last order. The tail, except in the male, 

 is armed with a sting. The Bee, the Wasp, and the 

 Ant, are of this tribe. 



6. Dipterous insects (from ^i7rXoog double, and 

 trispov a wing) are those having only two wings, 

 each furnished at its base with a poise or balancer. 

 The common House-flies and the Gnat are familiar 

 examples of this order, 



7. Apterous insects (from a. without, and ttt^ov a 

 wing). This order contains all such insects as want 

 wings in both sexes; as the Spider, Flea, and Louse. 



