1895.] 261 



found in the intervening higher parts of Glen Lyon. Although I 

 became aware of its presence in Glen Lochay soon after my arrival, I 

 did not succeed in taking it for several days, and it was never common. 

 It occurred singly over a considerable area, and especially affected 

 the sunniest glades and openings, both in the little birch woods which 

 mark the course of the burns down the hill sides, and also in the 

 larger woodlands on the lower ground. It is a sun-loving thing, only 

 flying freely when the weather is really warm ; it is fond of basking 

 on light coloured stones, but when so resting is shy and flies off at 

 once when any attempt is made to approach. While the greater 

 number of examples were seen at the comparatively low altitude of 

 500 or 600 feet, the species was also met with on the " moss hags " 

 around Lochan nan Damh, and I have no hesitation in expressing the 

 opinion that its breeding places are such mountain tarns, whence the 

 insects scatter themselves sporadically over the Glens in search of 

 shelter, warmth and food. In the adult ^ the blue markings are de- 

 veloped to an extent that almost makes them constitute the ground 

 colour, and this feature makes the insect a striking one on the wing, 

 and along with its smaller size, serves to distinguish it from j^. juncea, 

 which sometimes occurs at the same time and places. 



With the exception of Leucorrhinia duhia, which was not found 

 in Glen Lochay, the list of dragon-flies is identical with that of species 

 taken at Eannoch in June, 1889 (Ent. Mo. Mag., vol. xxvii, p. 47). 

 Libellula quadrimaculata, L., was common and wide spread ; a wild 

 insect, rather difficult to capture. Somatochlora arctica, Zett. : of this 

 brilliant species, so often found associated with ^. borealis, only a 

 single $ was seen with certainty aud taken. Cordulegaster annulatus, 

 Latr., was found in the greatest profusion, and, compared with the 

 ^schnce, a wonderfully easy capture, as it hawked about along the burn 

 sides or in hollows on the moors, and even in sheltered places far up 

 the hill sides ; at the same time it is a powerful insect, and on occasion 

 its evolutions become rapid and high. JEschna juncea, L., only one 

 taken, but the species was beginning to appear more frequently towards 

 the end of the month. EnaJlagma eyathigeriim, Charp. : a small blue 

 Agrion which just began to appear at Lochan nan Damh at the end of 

 June, but of which I failed to catch an example, no doubt belonged to 

 this species. Pi/rrhosomn minium, Harris, was common at the Lochan 

 juist named, as well as on the low ground. 



Ill such a district Ferlidw were naturally common. A slightly 

 specialized alpine form of Dictgopteryx microcephala, Pict. (small and 

 dark), was not rare at a streamlet running down Meall Ghaordie bo- 



