28o ]Viiigate : Durham Diptcni. 



Aporomyia dubia Fin. Bishop Auckland, one 6, May 1901. 



Somolia simplicitarsis Ztt. (rebaptizata Rnd.). Hesleden, two 9 s, 



Auy-. 1900. 

 Melanota volvulus F. Hesleden, seven (5 s and one ?; Gibside, one i, 



Jiily-Aii_s^. 1 896- 1 90 1. 

 Olivieria lateralis F. Hesleden, two S s and six 9 s, Jnly-Aug. 1899-1900. 

 Micropalpus vulpinus Fin. Hesleden, one ? , July 1899. 

 Micropalpus pictus Mg-. ShuU, one i, July 1900. 

 Erigone rudis Fin. Hesleden, two ^s and one 9, July-Aug-. 1 899-1 900 ; 



Shull, common, July 1902. 

 Erigone consobrina Mg-. Hesleden, two i, Aug. 1900. 

 Plagia ruralis Fin. Hesleden, one i and one 9 , Aug-. 1900. 

 Urophylla seria Mg-. Bishop Auckland, one 6, July 1902. 

 Digonochasta setipennis Fin. Bishop Auckland, three i s and one i , 



May-Juh-, 1899-02. 

 Thryptocera crassicornis Mg-. Bishop Auckland, one 9 ; Wearhead, 



one 9 . July-Aug-. 1900-1901. 

 Siphona cristata F. Belburn, two i s and one 9 ; Bishop Auckland, one 



i ; Evenwood, one 9 , May-July 1897-1900. 

 Siphona geniculata Deg. Marley Hill, two <5 s ; Wearhead, owe S ; 



Hesleden, two 9 s ; Gibside, one 9 , Aug-.-Sept. 1896-1901. 

 Stevenia maculata Fin. Hesleden, one 9 , Augf. 1900. 

 Brachycoma devia Fin. Hesleden, one 9 , Aug. 1900. 

 Cynomyia alpina Ztt. Harperley, one S , May 1902. 

 Cynomyia mortuorum L. Harperley one i ; Bishop Auckland, one 9 , 



June-July 1899-1900. 

 Onesia sepulchralis L. Hesleden, five i s and six 9s; Wearhead, one 



i ; Bishop Auckland, one i, May-Aug-. 1899-1901. 

 Onesia cognata Mg. Hesleden, two Ss and one 9, Aug-. 1900. 

 Sarcophaga carnaria L. Common everywhere. 



Sarcophaga atropos ;\Ig. Hesleden, two S?, and two 9 s, Aug. 1900. 

 Sarcophaga cruentata Mg. Hesleden, two <£ s and one 9 , .Aug. 1900. 



Fam. MUSCID.E. 



Stomoxys calcitrans L. Hesleden, five i s and five 9 s ; Bishop .Auck- 

 land, one i and two 9 s, April-Oct. 



Hoematobia stimulans Mg. Hesleden, one c5 , Aug. 1900; Bishop Auck- 

 land, two i s, June 1902. 



Pollenia vespillo F. Wearhead, one 6 and one 9 , Aug. 1901. 



Pollenia rudis F. Many localities, five <J s and five 9 s, March-July. 



Mysospila meditabunda F. Stanhope, one i ; Hesleden, one i and two 

 9 s, .April-May 1900-1901. 



Oraphomyia maculata Scop. Hesleden, four <5 s and two 9 s, July-Aug. 

 1899-1900. 



Musca domestica L. Hesleden and Bishop Auckland, four i s and one 9 . 



Cyrtoneura stabulans Fin. Hesleden, one i ; Bishop Auckland, one 6 

 and three 9 s. 



Cyrtoneura pabulorum ¥\n. Wearhead, one 9, Aug. 1901. 



Morellia simplex Lw. Common everywhere. 



Morellia hortorum Fin. Hesleden, three i s and two 9 s ; Wearhead, 

 one 9 , July-.Aug. 1899-1901. 



Mesembrina merediana Mg. Hesleden, five i s ; Belburn, one 6 and 

 two 9 s ; Marley Hill, one 6 and one 9 ; W^earhead, one 6 and four 9 s, 

 June-.Aug. 



Naturalist. 



