190O.] , 183 



fully mature, when it returns. Its hubit is to fly for long distances near the margin 

 of the loch, keeping out about two or three feet and parallel to the edge, the speed 

 is fairly swift and to catch the insect the net must be wielded rapidly. They 

 continue their flight backwards and forwards as long as the sun is bright, but when 

 the sun goes down they fly off and settle amongst the heather. If one's eyes are 

 keen enough the insect may be captured at rest, although it is Tcry easily startled. 

 Mr. Briggs and I found the insects at various lochs, but always in more or less small 

 numbers. After Mr. Briggs left I was very fortunate in getting one fine day's work 

 at Loch-en- Ang, where I found the species in some numbers, but the day was 



what might be described as an ideal one, with little or no wind. S. arctica, 



Zett., was taken near Tomich in Juno at a very low level, and in August a few 

 were seen flying in a little shady nook near a hill-top in Glen Affrick. 



Cordulegaster annulaius, Latr., as usual, very common everywhere. 



^schna juncea, L., common in August. .E. ccerulea, Strom., a few of this 



species were seen and captured in Stratliglass and in Glen Affrick. 



Lestes gponna, Hans., common at Glen Cannick, Loch-en-Ang, and Loch 

 Glasslettre. This was taken by me in Glen Cannick in 1880, but I seem not to have 

 recorded it. 



Pyrrhogoma nymphula, Sulz., common. 



Enallagma cyathigerum, Charp., common everywhere. 



NEUROPTERA-PLANIPENNIA. 



Sialis lutaria, L., common. S.fuUginosa, Pict., not uncommon at Knockfin. 



Sisyra fuscata, Fab., common with the last and also at the lochs south of 

 Tomich. 



Hemerobius maryinatus, Steph., very common by beating birch trees every- 

 where. H. nervosus, Fab., odd specimens were taken at Knockfin, at Plodda, 



in Glen Cannich, &c., but the species was by no means common. H. orotypus, 



Wallengr., Dog-fall and towards Glasslettre. IT. nitidulus, ¥., out of Scotch 



firs at Loch-en-Ang. H. pint, Steph., one specimen was taken above Guisachan 



House. 



Chrysopa alba, L., C. fiava, Scop., and C. vittata, Wesm, all sparingly at 

 Plodda and Knockfin. 



Coniopteryx tineiformis , Curt., not uncommon. 



Panorpa germanica, L., common. 



TRICHOPTERA. 



Phryganea striata, L., was not uncommon at various lakes, whore it was 



easily disturbed and flew wildly. P. varia, F., was not uncommon at Knockfin. 



P. obsoleta, McLach., occurred all over the district in numbers. 



Limnophilus rhomhicus, L., at some of the higher lochs. L. marmoratus, 



Curt, might be obtained at all the lochs, both in Strathglass and Glen Affrick. 



L. borealis, Zett., this species was taken at Loch Bingley and also at the lochs 

 around Cougie. It was just coming out towards the end of August ; it is a very 



late species.- — -L. lunatus. Curt., not uncommon at the lochs. L. ignavus, 



McLach., was taken near the Dog-fall in Glen Affrick. L. centralis. Curt., as 



usual, very common ; one specimen which I took had a long foot stalk to the third 



