258 THE SCOTTISH NATURALIST 



the posterior two-thirds they are bent outwards in a curve so as to 

 include the whole width of the dorsum, and extending backwards 

 to the base of the scutellum ; the latter pale green, metathorax 

 black with a central basal spot of pale greenish, halteres pale 

 yellowish with black tip. Pleural pale green with small black spot 

 below root of wing, sternum black. Abdomen pale or yellowish 

 green, the 3rd and 7th segments black, 8th segment broad and 

 pale, genitalia prominent, with slender forceps (for details, see 

 Fig. 2). Legs pale yellowish and hairy, with the tips of the femora, 

 knees, and tips of tibiae black ; 1st segment of front tarsus twice 

 as long as the tibia and equal in length to the femur. Wings 

 greyish milky, strongly iridescent, surface with rather long hairs 

 which, however, are very liable to be rubbed off; base of fork of 

 5th vein beyond the level of the cross-vein. Length 2*5 mm. 



$ Like the male, but smaller (1-5 mm.) and paler; antennae 

 pale yellow, thorax more of a pale yellowish, legs much less hairy, 

 while the black bands on the abdomen show a tendency to break 

 up into spots. 



Eight males and one female were captured, and are now 

 in the collection of the Royal Scottish Museum. 



DIPTERA SCOTICA: VI. THE WESTERN ISLES. 



By Percy H. Grimshaw, F.R.S.E., F.E.S. 



(Continued from page 236.) 



137. Dolichopus popularis, Wied. 3 <$ and 6 9, Dunvegan, 



Skye, June 1905 (Waterston) ; 1 , Uig, Skye, June 1906 

 (Waterston). 



[D. puncti/m, Mg. This species was recorded by C. W. 

 Dale from N. Uist, June 1883 (Ent. Mo. Mag., xx., p. 214), 

 but it is very doubtful whether it has ever been taken in 

 Britain.] 



138. D. simplex, Mg. 2 $ , Jura, Sept. 1907 (Waterston); 1 , 



Lochboisdale, S. Uist, June 1906 (Waterston) ; 2 , Skiport, 

 S. Uist, June 1906 (Waterston); 24 and 13 ? , S. 

 Uist, June 1910 (Grimshaw); 2 ^ and 2 5, Balelone, 

 N. Uist, June 1905 (Waterston); 14 J and 10 $, 

 Garynahine, Lewis, 4th July 1906 (Kinnear) ; 9 and 

 2 9 j Stornoway, Lewis, 8th July 1906 (Kinnear). 



