168 [•i"!y. 



Arran in June 1SS2, and Col. Yerbury tooli it at Nairn in July 1904. 

 It occurs also in the Faroe Islands, from which locality 1 have 

 received a specimen through the courtesy of Mr. Kingdahl under the 

 MS. name of faroensis. 

 20 (19) Smaller species with narrow frons and narrower, greyer jowls. 

 '21 (22) Thorax greyish- black with darker stripes. Eyes distinctly separated 

 on frons by a space at least as wide as 3rd antennal joint. Legs 



longer and more slender *8. eurata, sp. u. 



c? . Frons at narrowest part slightly wider than 3rd antennal joint. 

 Jowls about \ the vortical diameter of eye and silvery-greyish. 

 Arista distinctly pubescent. Thorax greyer than in the last species 

 and more resembling that of contractifrons, to which the species 

 bears a considerable general resembhmce. Abdomen, however, more 

 ovate and flattened dorsoventra'ly, with larger dark patches, and the 

 first segment more extensively darkened. Sternopleural bristles 

 1 : 2. Front tibiae usually with a fine bristle behind ; middle tibiae 

 with a small anterodorsal bristle (sometimes missing) and two small 

 posterodorsal bristles ; hind tibiae with 2-3 .small anteroventral and 

 two posterodorsal bristles. Hind femora with about 4 anteroventral 

 bristles towards tip find a posteroventral row of about 5 bristly hairs 

 on basal half, gradually increasing in length from base, but not much 

 longer thau femur is deep. WinL'S usually only slightly infuscated 

 about base. Squamae whitish. Halteres yellow. 



$. Interfrontalia brownish, not quite extended to front of frons, 

 but longer thau in co7itractifr-ons. Arista more distinctly pubescent 

 thau in that species. Thorax grey, but extensively suffu.sed with 

 brown on disc and with a tendency to form three brown stripes. 

 Lower posterior sternopleural bri.stle small but distinct. Abdomen 

 with brownish patches larger than usual, somewhat triangular in 

 outline, first segment also considerably darkened. Ovipositor with 

 no distinct terminal lamellae. Chaetotaxy of legs as in male but 

 bristles stronger, the auterDdorsal bristle to middle tibiae apparently 

 always present. Posteroventral bristly hairs about base of hind 

 femora much less conspicuous than in contractifrons or the previous 

 species. 



Length 4'5-o ujm. 



This species was found by Mr. Verrall in the Isle of Arran in June 

 and at Inchnadamph and Inveran (Sutherland) in July. Col. Yerbury 

 caught a female at Aviemore (Inverness) on July 28th, 1899, and 

 Mr. A. E. J. Carter took it at Aberfoyl-^ (Perth) in July 1903. 

 Mr. H. W. Andrews has taken it in Ireland at Kenmare and Loo 

 Bridge (Co. Kerry) in July. It is the contractifrons of Verrall's 

 " List," the true contractifrons standing in the Verrall Collection 

 under the MS. name of cilifetnur. 

 22 (21) Thorax blackish without distinct stripes. Eyes closely approximated 

 on frons — only narrowly separated by the silvery orbits, frontal stripe 

 hardly visible. Legs shorter and stouter 



.... *9. mundula, sp. n. 



