A LIST OF THE DITTERA MET WITH IN WESTER ROSS 109 



Clausilia bidentata. Common in small gill at lower end of Glenelg 

 village ; not common on walls near Pictish towers, Glenbeg 

 valley; scarce under stones in larch wood near the village; 

 and in several places at lower end of Glenbeg valley, not 

 common. 



Cochllcopa lubrlca. Scarce under stones in larch wood in Glenelg 

 village ; scarce in small gill at lower end of Glenbeg valley ; 

 scarce under stones at ruins of Bernera Barracks ; and 

 common in moist places in Glenbeg valley. 



Cdrychlwn minimum. Not common in small gill at lower end of 

 Glenbeg valley ; common in small gill and larch wood near 

 Glenelg village; common amongst moss, etc., on moist 

 slopes in Glenbeg valley ; common in moist places on cliffs 

 near the coast south to Rudha-na-h'Airde Beithe. 



Llmncea truncatula, Limiuca peregra, Plsldium fontinaie, Plsldlum 

 puslllum. These water shells were found together, but all 

 scarce, in ditches near the coast from Glenelg to Glenbeg 

 river. 



A LIST OF THE DIPTERA MET WITH IN 

 WESTER ROSS, WITH NOTES ON OTHER 

 SPECIES KNOWN TO OCCUR IN THE 

 NEIGHBOURING AREAS. 



By Colonel J. W. Yerbury, R.A., F.Z.S. 

 {Continued from page 91.) 



365. Echinomyia fern, L., Loch Assynt, 16th June 191 1; Loch- 



inver, 24th June 191 1, common. 



366. Thryptocera plllpennls, Mg., Lochinver, 23rd June 1911, two 



$ $, one ?. Bezzi, in Kert. Kat. Pal. Dipt., vol. iii., 

 places this species in the genus Actia. 



367. T. bicolor, Mg., Invershin, 15th August 1900. 



368. Siphona geniculata, De G., Lochinver, 24th June 191 1; Inch- 



nadamph, 1st June 1911. A pair taken in coltu on the last 

 date do not agree well with the description, but must be 

 assigned thereto. 



