DTPTERA. 



485 



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

 in, 



FiG.591. Wing- of Callopistria annuities. 



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 



Cordylurince (Cor-dyl-u- 



ri'nae). 



To the subfamilies Or- 

 talincz (Or-ta-li'nas) and 

 Trypetince (Try-pe-ti'nae) 

 belong many common 

 species which have the 

 wings beautifully marked 

 with dark spots or bands. 

 In the Ortalinae 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, FiG. S92 .--The Apple-maggot; T,la ; 2, P upa- 

 onrl of fVi< cim<* fim< rium; 3, adult; la, head of larva from side, 

 ailQ at tlie Same time showing mouth-parts and cephalic spiracle; 



becomes much less dis- ^ ra h c Te d ofiarva rva fron> below; IC> caudal 



