CYCLORRHAPHA 

 Proboscidea 



29 



Syrphidae 



L / 



Fij;. 96. Syrplnis rihcsii Linn. 9 11 X2i mm. .\ 

 common " liovcriiii,' fly" in gardens and \vood.s. 

 The larvae feed upon plant lice as do many 

 Syiphid larvae and are most benelirial. 



Fig. 97. Syrphiis nitidicoUis Meig. ? 11 X2i mm. 

 In glades of woods, apparently less common in 

 gardens. 



Fig. 98. Syrphiis bifasciiiliis Fahr. $ iix22mTn. 

 Common in gartlens and imdcr shrubs where 

 sunshine penetrates. 



I' 'n- 99- Syrphiis balteatus De Geer. ? 9 x 20 mm. 

 A well-known hoverer, frequents sunny glades, 

 the larva is a great devourer of aphides. 



