1899.1 31 



DOLICHOPUS AGILIS, Mgn. 

 This species is very similar to D. linearis, Mg. ; the chief points of distinction 

 being, that in the former the fore coxae are armed with a number of black bristles, 

 and the hind tibiae have the extremity a little thickened, as well as black ; the fore 

 tarsi are also darker in colour. The antennae have the basal joints yellow, and the 

 third black, oval, and pointed ; the hypopygium is black, with pale yellow and 

 slightly black fringed lamellae. The legs are pale yellow, with exception of the 

 blackened and slightly thickened ends of the hind tibiae, black hind tarsi, the 

 fore tarsi with the last four joints piceous or black, and the metatarsus pale. I cap- 

 tured a specimen of both sexes of this fly in my garden near Bradford in 1886, and 

 also a single male at Windermere in 1802. This is not in Mr. Verrall's late lists, 

 but he remarked in the Ent. Mo. Mag. for July, 1875 (when speaking of a former 

 list of the DolichopodidcB) , "this species appears in the list simply from a female 

 caught at Leith Hill on June 25th, 1868, which was marked by Loew as agilis ? I 

 fear it is incorrect." 



Htlemyia geisea, Fin. 



Mr. Beaumont sent me a specimen of this well marked species (frequenting 

 the nests of Hymenoptera) which he had captured at Oxshott, in Surrey. It is 

 narrow, conical, and pale ash-grey in colour, about 8 mm. long, with a long haired 

 arista ; a very prominent forehead and face (buccate), and sub-approximate male 

 eyes. The thorax has three sub-distinct dark stripes. The abdomen is sub-cylindri- 

 cal, with a faint, dorsal, central, black stripe. The palpi, antennae, and legs are 

 black. The wings have a yellow tinge. 



Pegomtia palliceps, Ztt. 

 This little fly has the antennae and palpi black ; the arista pubescent at the 

 base, the thorax dark grey and unstriped, the abdomen conical, pointed, pale grey, 

 and immaculate ; calyptra with scales small and equal ; wings yellowish ; legs 

 yellow, with the exception of the fore femora and all the tarsi, which are black. The 

 hind tibiae have a single long bristle in the middle of the outer surface. Mr. Beau- 

 mont sent me a single female which he captured at Taynuilt, in Argyllshire. 



CORDYLUEA KUFJMANA, Mgn. 

 This has the tibiae and tarsi of the fore-legs red, but all the other parts of the 

 legs black. The palpi and antennae are black, the thorax and abdomen shining 

 black, the former with a short, white central stripe or spot in front. I have two 

 specimens of this species, which I found in a collection made by the late Francis 

 Walker. 



NORELLIA NERTOSA, Mgn. 



The antennae, palpi, and proboscis in this species are yellow ; the arista sub- 

 plumose ; the thorax and abdomen dark greyish-black, with yellow pubescence, the 

 former being marked with two sub-distinct stripes ; the legs are yellow, with a dark 

 mark at the apex of the hind femur, and the fore femora are armed beneath with long 

 bristles ; the wings have the long veins slightly nebulous near the apices.* I found 

 this rare species near Bradford on June 14th, 1884. Mr. Verrall has not included 

 this in his list, but it is mentioned as British by Curtis, and also by Walker in his 

 list of undescribed species. 



* This species may be known from N. flavicauda, Mgn., which it closely resembles, by the 

 shoulder points and scutel being black instead of yellow. 



