/CYCLORRHAPHAX 



\PROBOSCIDEA / 



35 



Syrphidae 

 Microdontinae 



APPENDIX TO VOL. II 



Figs. 123, 124. Microdon mutabilis L. $ 1 1 x 20 mm. Pale silver pubescence across 

 abdomen and on frons. 9 n X2i mm. Golden tawny pubescence across abdomen and 

 on frons. (Bred by Rosse, Butterfield, Yorkshire.) " The larvae found in ants nests and 

 under bark on stumps of trees long cut down, the nest being generally of Formica fusca. 

 Fly emerges middle of May, near Lymington. The wings of bred specimens are often wet 

 and dirty from material of nest, generally Ash and Aldridge Hill Pine. Wild specimens 

 often have frayed wings." (Jones.) 



