The Classification of Butterflies 



subidngdom is known by naturalists under the name of the Arthro- 

 poda. The word Arthropoda is derived from the Greek language 

 and is compounded of two words, «pfyov (arthrori), meaning -a joint 

 and *o6g (pons), meaning afoot. The Arthropoda seem at first 

 sight to be made up of jointed rings and feet; hence the name. 



The subkingdom of the Aithropoda is again subdivided intc 

 six classes. These are the following: 



Class I. The Crustacea (Shrimps, Crabs, Water-fleas, etc.). 



Class II. The Podostomata (King-crabs, Trilobites [fossil], etc.). 



Class III. The Malacopoda (Peripatus, a curious genus of 

 worm-like creatures, found in the tropics, and allied to the Myria- 

 pods in some important respects). 



Class IV. The Myriapoda (Centipedes, etc.). 



Class V. The Aracbnida (Spiders, Mites, etc.). 



Class VI. The Insecta (Insects). 



That branch of zoology which treats of insects is known as 

 entomology. 



The Insecta have been variously subdivided by different scien- 

 tific writers, but the following subdivision has much in it to com- 

 mend it, and will suffice as an outline for the guidance of the 

 advanced student. 



Class VI. Insecta (Insects proper 1 

 Heterometabola 



For the most part undergoing only a partial metamorphosis in the development 



from the egg to the imago. 



orders 

 i. Thysanura. 



Suborders : 



Collembola (Podura, Springtails). 



Symphyla (Scolopendrella). 



C in ura (Bristletails, etc.). 



2. Dermatoptera (Earwigs). 



3. Pscudoneiiroptera, 



Suborders : 



Mallopbaga (Bird-lice). 

 Platyptera (Stone-flies, Termites, etc.V 

 Odonata (Dragon-flies, etc.). 

 Ephemerina (May-flies, etc.). 



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



5. Ortboptera (Cockroach, Mantis, Mole-cricket, Grasshopper, Katydid, eicj 



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