]\'i>igttlc : Diti'luDii Diptcni. 275 



Leptis lineola F. South Durliam, one y . 



Chrysopilus auratus F. Hesleden, ihroe is aiul oiu^ v ; ShuII, one i 



and one 9 ; Belburn, one ? ; Bishop Auckland, owe ■{. and one 9 , Jnne- 



Aiis;-. 1899-1901. 

 Symphoromyia crassicornis P/.. Bisliop Aucklantl, two 9, July 1900-2. 



Fam. ASILID.^. 



Dioctria rufipes Deijf. Bishop Auckland, five i s and seven 9 s ; BarnartI 



Castle, one ? ; Harperley, one ? , June 1S97-1900. 

 Philonicus albiceps "Shj;. Heselden, two c$ s and one 9, Aug-. 1900. 



Fam. BOMBYLID.E. 



Bombylius major L. Gibsitle, three i s and one 9 , .April 1896 ; Hesleden, 

 tour i s and ten 9 s, April 1901. 



Fam. THEREVID.E. 

 Thereva nobilitata F. Hesleden, two ^s and four 9 s, Aug-. 1902. 

 Thereva annulata V. Hesleden, six is and four 9s, -Aug-. 1902. 



Fam. EMPID.^. 



Hybos grossipes L. Hesleden, four ^ s, Aug-. 1900; Shull, one d, Sept. 



iqoo ; W'earheaii, three i , -Aug. 1901 ; Bishop Auckland, one S, Jul\- 



1 90 1 . • 



Hybos femoratus .Aliill. Wearhead, one 3, -Aug. 1901. 

 Cyrtoma spuria Fin. Harperley, one ? , June 1900. 

 Rhamphomyia nigripes F. Evenwood, two is; Harperley, one i ; 



Wearhead. one 9- June-.Aug-. 1897-1901. 

 Rhamphomyia sulcata Fin. Hesleden, one 6 and one 9 ; Bishop Auck- 

 land, three i s and two 9 s ; Escomb, one 9 ; Waskerley, one 9 , Alav- 



July 1897- 1 90 1. 

 Rhamphomyia dentipes Ztl. Bishop .Auckland, four 6 s and one 9 , 



Ma\-June 1S97. 

 Rhamphomyia variabilis Fin. Wearhead, three >i s, Aug. ; Shull, one (5 



and three 9 s, Sept. 1900. 

 Rhamphomyia umbripennis .Mg. Bishop Auckland, two 6 s and one 9 , 



June-Juh- 1901. 

 Rhamphomyia flava Fin. Hesleden, one <J and seven 9 s, July-.Aug. 1900. 

 Empis tessellata F. Common everywhere. 



Empis livida L. Hesleden, eig-ht (5 s and nine 9 s, Aug-. 1899-1900. 

 Empis borealis L. Wearhead, one 9 , June 1901. 

 Empis stercorea L. Harperley, one 9, June 1900. 

 Empis trigramma M'g. Common everywhere, May-Aug;. 

 Empis punctata Mg-. Bishop Auckland, si.x; S s and four 9 s ; Harperley, 



three i s ; F^scomb, one i , May-June 1897-1900. 

 Empis pennipes L. Bishop Auckland, one 9 , June 1900. 

 Empis vernalis Alg. Hesleden, two is and one 9; Harperlev, one i ; 



Bishop Auckland, two ? , June 1900. 

 Empis vitripennis Mg. Shull, one i, .Sept. 1900. 

 Empis chioptera Fin. Bishop Auckland, two i s. May 1900. 

 Milara maura F. Common, May-June. 



Hilara manicata Mg-. Bishop Auckland, one c? , July 1900. 

 Hilara quadrivittata Mg-. Bishop .Auckland, one 9 , June 1901. 

 Hilara chorica Fin. Escomb, three i s, May-June 1899. 

 Hilara thoracica Mcq. Bishop Auckland, two <5 s, June-Jul}- 1901. 

 CEdalia holmgreni Ztt. Bishop Auckland, two 9 s, June 1901. 



1903 July I. 



