DIPTERA. 



485 



The Dung-flies, Scatopliaga (Sca-toph'a-ga), are rather 



IIIi 



4+5 



VII, + IX 



V 3 + VII, 



FIG. 591. Wing of Callopistria annulipcs. 



slender flies, which have the body clothed with yellowish 

 hair, and which are com- 

 mon, especially about 

 fresh cow-dung. They 

 belong to the Subfamily 

 Cordylnrince (Cor-dyl-u- 

 ri'nse). 



To the subfamilies Or- 

 talince (Or-ta-li'nae) and 

 Trypctince (Try-pe-ti'nae) 

 belong many common 

 species which have the 

 wings beautifully marked 

 with dark spots or bands. 

 In the Ortalinse vein II 

 extends to the margin of 

 the wing in the usual 

 way; in the Trypetinae 

 the outer part of vein II 

 turns suddenly towards 

 the margin of the wing, FlG . S92 ... The Apple . magl! ot ; ,, larva; 3 , pupa- 



anH ar flip c;nmf> timf rium; 3, adult; ia, head of larva from side, 



showing mouth-parts and cephalic spiracle; 



becomes much less dis- lb '- head * larva from below; IC ' caudal 



