2 8o ORDER IN THE INSECT WORLD. 



which is now in use, Orthoptera (from oeQ6;, straight, and 

 Trrgg&v), referring to the manner in which the wings are 

 folded underneath the elytra. 



Here we must pause to recapitulate for the benefit of our 

 younger readers, and to avoid confusion, the various orders 

 into which the insect world is divided. 



1. Aptera (from a, without, and flrgfov, a wing), wingless. 

 Examples Flea, louse, chigo. 



2. Diptera (M?, two, and <7rrgo'i>), two-winged. Sub-divided 

 into Nemocera, having six- jointed antennae; Brachycera, having 

 three-jointed antennae. Examples Gnat,tipula; May-fly, gad-fly. 



3. Hemiptera (ifu, half, and vrtgov), half-winged. Sub- 

 divided into Heteroptera, with wings of different textures ; 

 Homoptera, with wings of one substance. Examples Land- 

 bug, water-bug ; cicada, lantern-fly. 



4. Lepidoptera (Xg^r/c, a scale, and cmco'i/), scaly-winged. 

 Examples Tiger-moth, butterfly, silkworm. 



5. Orthoptera (o^or, straight, and flre^oi/), straight-winged. 

 Examples Earwig, cockroach, locust. 



6. Stymenoptera (fy^*, a membrane, and vreofo), mem- 

 branous-winged. Examples Bee, wasp, ant. 



7. Neuroptera (^ufov, nerve, and cmeov), nerve-marked 

 wings. Examples Dragon-fly, caddis-fly, ant-lin. 



8. Strepsiptera : (arps-^ig, a twisting, and arfgo'i/), curled or 

 twisted wings. Examples Xenos, elenchus. 



9. Coleoptera (xoXgo'c, a sheath, and crrgooi'), sheathed wings, 

 Examples Beetle, cockchafer, 



