JVini^aii' : Durham Dipt era. 281 



Pyrellia cyanicolor Zit. Marley Hill, two 9 s. 



Pyrellia lasiophthalma Mcq. Bishop Auckland, six i s and four 9 s ; 



Harp'M-k'v. ono 6 ; .Marlov Hill, one 9, April 1900-1901. 

 Protocalliphora groenlandica Zit. Very common, especially at Bishop 



Auckland. 

 Calliphora erythrocephala 'Sly:;. \'ery comnion. 



Calliphora vomitoria L. Common, but not so common as erythroccpluda. 

 Euphoria cornicina F. Many locals, not uncommon. 

 Lucitia cassar L. \'ery common. 



Lucilia sericata Mt;'. Hesleden, one c? and one 9, Aut^;. 1900. 

 Lucilia ruficeps Mtc. Bishop Auckland, one S and one 9 , Jnne 1900. 



Kam. ANTHOMYID.^. 



Polietes lardaria F. Common everywhere. 



Polietes albolineata Fin. Evenwood, one 6 and two 9 s, June 1897; 

 Hesleden, eig-ht is and five 9s, Aug-. 1899; Wearhead, one 9, Aug-. 

 1 90 1. 



Hyedotesia incana W. Bishop Auckland, three c5 s. May 1897; Wear- 

 head, three 6 s and two 9 s, Aug. 1901. 



Hyedotesia lucorum Fin. Escomb, three £ s and one 9 ; Bishop Auck- 

 land, one 6 ; Gibside, one ? ; Stanhope, one 6 ; Hesleden, one i , 

 -March-Ma\- 1898-1901. 



Hyedotesia marmorata Ztt. Wearhead, one 9, Aug-. 1901. 



Hyedotesia serva Mg-. Escomb, one i ; Evenwood, one 9 , May 1897- 

 1S99 ; Bishop Auckland, two £ a and two 9 s, June 1902. 



Hyedotesia nivalis Rnd. Wearhead, one c5 , Aug. 1901. 



Hyedotesia obscurata Mg. Wynyard, one 6, May 1902. 



Hyedotesia variabilis Fin. Harperley, one 6, June 1902. 



Hyedotesia longipes Ztt. Wynyard, one i , June 1902. 



Hyedotesia umbratica Mg-. Belburn, one £, May; Bishop Auckland, 

 one 9, June 1900; Wearhead, two is, June 1901. 



Hyedotesia lasiophthalma Mcq. Hesleden, two 9s; Shipley, one 9, 

 May- Aug-. 1900. 



Hyedotesia rufipalpis Mcq. South Durham, one i . 



Hyedotesia populi Mg-. Hesleden, one i, Aug. 1900; Bishop Auckland, 

 four 9 s, June-Sept. 1897-1901. 



Hyedotesia variegata ]\Ig. Bishop Auckland, one 9 , June 1902. 



^Hyedotesia palida F. Shipley, three 6 s, July 1900. 



Alloeostylus flaveola Fin. Bishop Auckland, two 9 s, July 1902. 



Mydea vcspertina Fin. Bishop Auckland, one c? , May 1902. 



* Mydea nigritella Ztt. Bishop Auckland and Bedburn, five i s, March- 

 July 1897- 1 90 1. 



Mydea urbana Mg. Hesleden, one i and one 9, Aug. 1900; Bishop 

 Auckland, three 9 s, June 1897-1901. 



Mydea tincta Ztt. Shull, one i , July 1902. 



Mydea pagana F. Wearhead, one i and one 9, Aug. 1901. 



Mydea impuncta Fin. Bishop Auckland and Wearhead, six i s and six 

 9 s, May-Sept. 



Mydea separata Mg. Harperley, two is, June; Brancepeth, one i, 

 June ; and Shull. one 9 , July 1902. 



Sphecolyma inanis Fin. Bishop Auckland, one 9 , July 1902. 



Spilogaster nigrinervis Ztt. Bedburn, one i, July 1897; Harperley, 

 one 9 , June 1902. 



Spilogaster duplicata Mg. Hesleden, six i s and five 9 s ; Wearhead, 

 Shull, and Shipley, one i , May-Ang. 1899-1901. 



1903 July I. 



