ORTHORRHAPHA 

 Brachycera 



lO 



Stratiomyidae 



Fig. 31. Xi-iiK'tt-his iwlatus Ztt. .^5x11 111111.. 

 95x12 mm. J cicaiii-coloured abdomen, spotted 

 with lilack. 9 <ibdomen almost wholly black. Often 

 fouiul in company of N. iiHi^inosiis. Sometimes in 

 Xreat numbers on the salt marshes in the Thames 

 Estuary. This extends to the mouth of the Coliie 

 River. These flies are slow in movement, and are 

 found on flowers, rushes, and grass. St Osyth, 

 E. Coast. (Harwood.) 



Fig. 32. OdontoDivia tii^n'iut F. ^ S'jxiy mm., 

 9 8x16 mm. Taken hovering over waterplants 

 and about flowers of Water Buttercup (Raiiiiuiiiliis 

 scelcratus). (Hanvood.) 



f'8- 33- Miiroc/irysa polita L. $ 4-5 x 10 mm., 

 9 4'5 X 1 1 mm. Common, sunning itself on leaves 

 of various plants. May to July. 



