278 DURHAM DIPTERA. 



XXXIII. 472. 



42 (36) (45). Palpi yellow with black ends. 



43 (44). Scutellum partly or wholly yellow. (tenera, Ztt.) 



44 (43). Scutellum grey; upperside of fore femora grey. 



2127. Pegomyia nigritarsis, Ztt. 

 Bishop Auckland, 4 $ and 5 ? , May-June, 1900-01. 



45 (36) (42). Palpi wholly yellow. 



46 (47). Abdomen cylindrical ; scutellum grey ; legs yellow 



with black tarsi ; the male fore femora black. 

 2126. Pegomyia bicolor, W. 

 Bishop Auckland, 1 $ and 4 ? , May-July, 1897- 

 1901. 



47 (46). Abdomen depressed ; scutellum yellow ; mid and 



hind femora with black rings. 



(2132. flavipes, Fin . ) 



48 (35). Thorax and abdomen yellow ; mid and hind femora 



ringed. ( 2I 33- vittigera, Ztt.) 



Sub-Family Homalomyiinle. 



474. Homalomyia, Bouche\ 



Herr Steiiis analytical tables of the European species. 



Full descriptions of each, species in Ms monograph of Homalomyia, Berliner 

 Entomlog. Zeitschrift, 1895. 



Males (Females, page 283). 



1 (14). Legs all yellow, or at least the hind tibiae translucent 



yellow. 



2 (7). Mid cox33 with a distinct thorn, pointing downwards. 



3 (4). Mid and hind femora yellow. 



2136. Homalomyia hamata, Mcq. 

 Brancepeth, 1 ? , June, 1902. 



4 (3). Mid and hind femora black. 



5 (6). Mid tibia? distinctly and abruptly thickened on the 



inner end-half. (insignis, Stein) 



6 (5). Mid tibia? gradually thickened towards the end. 



(2137. fuscula, Fin.) 



7 (2). Mid coxa? without a thorn. 



