THE CLASSIFICATION OF INSECTS. 



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Class III. HEXAPODA 



Heterometabola. For 

 the most part undergoing 

 only a partial metamor- 

 phosis in the develop- 

 ment from the egg to the 

 imago. 



Metabola. Undergo- 

 ing for the most part a 

 complete metamorphosis 

 from egg through larva 

 and pupa to imago. 



(Insects proper). 

 Orders : 



1. Thysanura. 



Sub-orders : 



Coliembola (Podura, Spring- tails). 

 Sym phyla (Scolopendrella). 

 Cinura (Bristle-tails, etc.). 



2. Dermatoptera (Ear-wigs). 

 3 Pseudoneuroptera. 



Sub-orders : 



Mallophaga (Bird-lice). 

 Platypteia (Stone-flies. Termites, etc.). 

 Odonata (Dragon-flies, etc.). 

 Ephemerina (May-flies, etc.). 



4. Neuroptera (Corydalis, Ant-lion, Caddis-flies, etc.). 



f>. Orthoptera (Cockroach, Mantis, Mole-cricket, Grass- 

 hopper, Katydid, etc.). 



6. Hemiptera. 



Sub -orders : 

 Parasita (Lice). 



Sternorhyncha (Aphids, Mealy-bugs, etc.). 

 Homoptera (Cicada, Tree-hoppers, etc.). 

 Heteroptera (Ranatra, Belostoma, Water-spiders, 

 Squash-bugs Bed-bugs, etc.). 



7. Coleoptera. 



Sub-orders : 



Cryptotetramera (Lady-birds, etc.). 



Cryptopentamera (Leaf-beetles, Long-horns, Wee- 

 vils, etc.). 



Heteromera (Blister-beetles, Meal-brigs, etc.). 



Pentamera (Fire-flios, Skip-jacks, June-bugs, 

 Dung-beetles, Stag-beetles, Rove-beetles, Wa- 

 ter-beetles, Tiger-beetles, etc.). 



8. Aphaniptera (Fleas). 



9. Diptera. 



Sub-orders : 



Orthorhapha (Hessian-fly, Buffalo Gnats, Mosqui- 

 toes, Crane-flies, Horse-flies). 



Cyclorhapha (Syrphis, Bot-flies, Tsetze, House- 

 fly, etc.). 



10. Lepidoptera. 



Sub-orders : 



Rhopalocera (Butterflies). 

 Heterocera (Moths). 



11. Hymenoptera. 



Sub-orders : 



Terebrantia (Saw-flies, Gall-wasps, Iclmeumon- 



flies, etc.). 



Aculeata (Ants, Cuckoo-flies, Digger-wasps, True 

 Wasps, Bees). 



