THE DIPTERA OF CLYDE. 



15 



*Ocydromia glabricula, Fin., 

 * ' Heleodromia stagnalis, Hal., 

 * H. fontinalis, Hal., 

 I£eme?'odromia precatoria. Fin , 



* Ardoptera irrorata, Fin., 

 Gloma fuscipennis, Mg., 



*Trichopeza longicomis, Mg., 



Tachypeza nubila, Mg., 



* Tachydromia, longicomis. Mg. 



May — Sept. Gen. dist. 

 Mav. Bonhill. 



Feb. and Nov. Cathkin Quarry. 

 June — Sept. Bardowie L. ; 



Glen Massan ; Ardentinny ; 



Bonhill. 

 June. Bonhill. 

 June — July. Hawkhead Est. j 



Gorge of Avon; Puck's Glen ; 



Bonhill. 

 June — July. Ardentinny ; 



Gorge of Avon ; Holy L. 

 July and Sept. Stepps Wood ; 



Bardowie L. ; Holy L. 

 May— June. Possil M. ; Bon- 

 hill. 



