382 INSECT MISCELLANIES. 



Upper wings quite crustaceous, and not over- 

 lapping beetles (Coleoptera) . 

 Upper wings semi -crustaceous, and over-lap- 

 ping bugs and grasshoppers (Hemiptera). 

 b, Upper and under wings of the same texture. 

 Wings covered with small tiled scales butter- 

 flies and moths (Lepidoptera) . 

 Wings membranaceous and naked. 

 Without a sting dragon-flies, &c. (Neu- 



roptera). 

 With a sting wasps, bees, &c. (Hymenop- 



tera). 

 2. With two wings .-Flies, gnats, &c, (Diptera), 



II, WINGLESS INSECTS (Aptera). 



De Geer's Classification. 



I. WINGED INSECTS. 



1, Wings four, without wing-cases : 



a, Wings covered with scales ; tongue spiral- 

 butterflies and moths. 



5, Wings naked and membranaceous May-flies 

 and caddis-flies. 



c, Wings equal, membranaceous, and netted ; the 



mouth with teeth dragon-flies and lace- 

 winged flies. 



d, Wings unequal ; nervures placed lengthwise ; 



mouth with teeth ; and the females having 

 a sting or ovipositor bees, wasps, ants, 

 ichneumons, saw-flies, &c. 

 e y Wings membranaceous ; the tongue bent under 

 the throat tree-hoppers, &c. 



2. Wings two, covered by two wing-cases : 



a, Wing-cases partly coriaceous and partly mem- 



branaceous, overlapping each other ; tongue 

 bent under the throat bugs, &c. 



b. Wing-cases coriaceous, or somewhat crusta- 



ceous and wing-like, overlapping; mouth 

 with teeth locusts, crickets, and grass- 

 hoppers. 



