CLASSIFICATION OF FLIES. 



191 



A. 



jFlirs 

 feitfj CfjtiDtng 



IHoutfjs 

 Masticantia 



L 



Biting Flies 



Mordentia 



n. 



Licking FUes 

 Lambentia 



/I. Primaeval winged 



Archiptera 

 [2. Gauze-winged 



Neuroptera 

 j3. Straight-winged 



Orthoptera 

 4. Beetles 



Coleoptera 



{' 



Skin-winged 

 Hymenoptera 



MJ. 



A.A. 



M.C. 



A.A. 



M.I. 



A.D. 



M.C. 



A.D. 



(•M.C. 

 A.A. 



B. 



JFlirs 



fcitf) Sutfting 



IHoutljs 



Sngentia 



m. 



Stinging Flies 



Fungentia 



IV. 



Sipping Flies 

 Sorhentia 



/6. Half- winged 



Hemiptera 

 1 7. Tway -flies 

 Bvptera 



I 8. Butterflies 

 ' Lepidoptercb 



,M.L 

 A. A. 



[m.c. 

 !a.d. 



(M.C. 

 A.A. 



Note. — The difference in the metamorphosis or transformation and in tJie 

 development of the wings of the eight individual orders of Flies is also 

 specified by the following letters: M.I. = Imperfect Metamorphosis. 

 M.C. = Perfect Metamorphosis. (Compare Gen. Morph. ii. p. 99.) 

 A.A. = Equal wings (fore and hinder wings are the same, or difier but 

 little). A.D. ^ Unequal wings (fore and hinder wings very different in 

 structure and texture, occasioned by strong differentiation). 



