CYCLORRHAPHA 



PROBOSCIDEA 



2 I 



Tachinidae 

 Muscidae 



Fig. 68. Blepharidea vulgaris Fin. 8 x<i4 mm. 

 Destroys larvae of Pieris rapae (white butterfly) and 

 many Diurnia. The commonest Tachinid parasite 

 on Lepidoptera, attacks many species, such as 

 Vanessa urticae in great abundance, Hesperia 

 hneola, etc. ; destroys 50 to 80 per cent, of summer 

 broods perhaps. (Hanvood.) 



Fig. 69. Tachina (Echinomyia*) grossa L. $ 19 x 

 37 mm. Parasite on larvae of Bombycid Moths. 

 Wool, Dorset, vii. 1918. 



Fig. 70. Fabricia ferox L. $ 13x25 mm. Hover- 

 ing over briar at Arne Common Road, Dorset. Also 

 found about rabbit burrows near Newbury, Berks, 

 and sitting on sandy banks, Millbrook, Cornwall. 

 Near Sallows. 



Fig. 71. Stoinoxys calcitrans L. ^ 6 mm. frons to 

 tip of abdomen. (Showing mouth parts.) Hurtful 

 to horses, and biting people from its resting-place on 

 windows in autumn. This species, which is grey in 

 colour with black spottings, is the commonest biting 

 fly among the Muscidae. It has often made horses 

 uncontrollable, and cattle are driven wild by it. 

 " It can be distinguished by its habit of sitting 

 sideways." (Harwood.) 



