u2 THE SCOTTISH NATURALIST 



414. C. arenosa, Zett, Brora, 20th August 1899; the absence of 



sand-dunes renders it improbable that this species will occur 

 in the district. 



415. Phorbia discreta, Mg., Tongue (Verrall). 



416. Ph. sp. inc., Lochinver, 1st July 191 1. 



417. Ph. sp. inc., Loch Assynt, 2nd June 191 1. 



418. Ph. sp. inc., Loch Assynt, 1st June and 21st July 1911. 



419. Ph. sp. inc., $, Loch Assynt, 10th June 191 1. 



420. Ph. sp. inc., Loch Assynt, 1st June 191 1. 



421. Ph. sp. inc., $, Lochinver, 27th June 1911. 



422. Pegomyia bicolor, W., Lochinver, 1st and 13th July 191 1 ; 



Golspie, 13th August 1900. 



423. P. rufipes, Fall., Lochinver, 24th, 27th, and 30th June, and 3rd, 



4th, 9th, and 13th July 191 1; common. 



424. P. vittigera, Zett., Lochinver, 23rd June and 4th July 



1911. 



425. P. sp. inc. (near ruftnd), Fall, Lochinver, 20th and 27th 



June 191 1. 



426. P.femorata, Stein, Loch Assynt, 2nd June 191 1. 



427. Homalomyia manicata, Mg., The Mound, 20th June 1904; 



bred from pupaj found under carcase of a Greater Black- 

 backed Gull. 



428. H. serena, Fall., Lairg, 16th June 1884 (Verrall); Loch 



Assynt, 10th June 191 1. 



429. H. postica, Stein, Loch Assynt, 12th June 1911. 



430. H. aerea, Zett., Loch Assynt, 2nd and 3rd June and 20th 



July 191 1. 



431. H. incisurata, Lochinver, 1st July 191 1. 



432. Azelia cilipes, Hal., Loch Assynt, 5th and 10th June 191 1. 



433. Cczlomyia mollissima, Hal., Loch Assynt, 10th June 191 1. 



434. Chirosia albitarsis, Zett., Loch Maree, 7th June 1884 



(Verrall); Tongue (Verrall). 



435. Macrorchis intermedia, Fall, Lochinver, 12th July 1911. 



436. M. means, Mg., Loch Assynt, 7th, 9th, and iSth June 1911 ; 



Lochinver, 29th June and 2th July 191 1. 



437. Hoplogaster mollia/la, Fall., Lochinver, 26th June and 3rd 



and 7th July 191 1. 



438. Ca-nosia pedella, Fall., Lochinver, 21st June and 2nd July 1911. 



Why Stein (Kert. Kat. Pal. Dipt., vol. iii.) uses the name C. 

 decipiens, Mg., for this species is not evident; anyhow, C. 

 pedella, Fall., is used by Verrall in his List of British Diptera, 

 so I follow him. Apparently this is a case where priority is 

 of practical utility, the name C. pedella being in general use 



