1916.] 217 



THEEE ADDITIONS TO THE LIST OF BEITISH DIPTERA. 

 BY A. E. J. CARTER. 



1. — Trichopticus mutatns Fin. 



I have a ? taken at Stobo (Peebles) by the Rev. James Waterston, 

 on Auojust 13th, 1904. This differs from our other species of Tri- 

 chopticiis in having yellow legs. In general appearance it is rather 

 like the ? of Hyetodesia semicinerea W. ; or, because of the yellow 

 legs, it might be taken at a first glance for a $ Pegomyia. It differs, 

 however, from the latter genus in having four post-sutural dorso- 

 central bristles, and a shortened anal vein It comes very near hians 

 Zett., in fact at first I thought the specimen belonged to that species, 

 but Mr. Collin says that it is mutahts, according to the characters 

 given by Stein. 



2. — Lasiops eriojMhahna Zett. 



A fine (^ of this species was taken at Blairgowrie (Perthshire) 

 on May 11th, 1910. I noticed it resting on a low stone wall, and on 

 looking closely would have passed it by as Anthomyia radicum L., but 

 something in the appearance of the head attracted my attention ; I 

 placed a tube over it, and on examination saw I had secured something 

 good. The long and dense pubescence covering the eyes accounted for 

 the peculiar appearance of the head. The specimen agrees very well 

 with Zetterstedt's description, and also with the description given by 

 Kowarz in his Paper on Lasiops (Mittheil. d. Miinchener Ent. Ver., 

 1880, p. 138) . Mr. Collin kindly compared my specimen with Kowarz's 

 type, and confirms my identification. 



The species of Lasiops must surely be very rare, as the above 

 specimen is the only one I have come across in ten years' collecting ; 

 and I can find only two species recorded from Scotland, viz., roederi 

 Kow., and ctenacnema Kow., and three from Arran only (cf., Ent. 

 Mo. Mag., 1883, p. 224.) 



3. — Eccoptomera pallescens Mgn. 



When the late Mr. Verrall pubhshed his List of British Diptera 

 in 1901, no named representative of this genus was included. Since 

 then four species Lave been recorded in the pages of this Magazine as 

 members of our fauna. The present addition — E. pallescens — occurred 

 at Musselburgh (Midlothian) on June 21st, 1906. The single specimen 

 obtained, a J , is in good condition, and agrees in all respects with 



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