CYCLORRHAPHA 



Pkoboscidea 



21 



Tachinidae 

 Muscidae 



Fig. 68. Blepharidea ','u!garis Fin. 8x14 mm. 

 Destroys larvae of Puns raftac (white butterfly) and 

 many Diurnia. The commonest Tachinid parasite 

 on Lepidoptera, attacks many species, such as 

 Vanessa iirticai.' in great abundance, Hespcria 

 hiii'da, etc. ; destroys 50 to So per cent, of summer 

 broods perhaps. (Haruood.) 



Fig. 69. Tacliiiia (Ecliiiwmyia) grossa L. 9 •9'< 

 37 mm. Parasite on larxae of Bombycid Moths. 

 \\'ool, Dorset, vii. 1918. 



Fig. 70. Fahricia fero.x L. ? '3x25 nmi. ll()\rr- Fig. 71. Stoinoxys calcitians L. ^ nun. frons to 

 ing over Ijriar at Arne Conunon Road, Dorset. .\lso tip of abdomen. (.Showing mouth parts.) Ihutful 

 found about raljbit burrows near Newbury, Berks, to horses, and l)iting people from its resting-place on 

 and sitting on sandy banks, Milllirook, Coruw.ill. windows in autumn. This species, wliich is grey in 

 Near Sallows. colour with black spottings, is the commonest biting 



fly among the Muscidae. It has often made horses 



uncontrollable, and cattle arc driven wild by it. 



■' It can be distinguished by its haljit of silting 



sideways." (Harwood.) 



