ORDER DIPTERA. 



105 



The fourth sub-family, the Miisci7ice, contains the most typical 

 species of the Diptera or two-winged flies. The common House 

 Fly {Musca domesticd) is the most familiar example. Several blue- 

 and-green flies are produced from larvce which feed on more or 

 less putrid flesh, and are well known to anglers as " Gentles." 

 The Blow Fly or Blue Bottle {Musca vomitofia) is one of these, 



150. — Platypeza Fasciata (Mag.) 



also the Green Bottle Fly {Lticilta Ccesar) which is often common 

 about hedges in the summer time. Many species belong to the 

 sub-family Anthoviyiince, are very small insects, and their larvcB 

 mine in the leaves of plants like those of Tinece. 



Section 2, namely Acalypterce, contains eight sub-families. 



The species of ScalopJiagincc are usually called '•' Dung-flies." 



Fig. 151. — Gastrophilus Equi (Mag.) 



The commonest species, the Yellow Dung Fly {Scatophaga sUr- 

 coraria), feeds largely on manure and other refuse. 



The Orialince are flies of small or moderate size, which are met 

 with principally in woods and fields. The Trypetina feed chiefly 

 on fruit. One species, Ceratitis hispa?iica, is very destructive to 

 oranges in the south of Europe, etc Of the Fwpliili?icc, Piophila- 

 casei may be taken as the typical example. The larvcz which 



