ODONATA OF THE NORTH OF SCOTLAND 183 



stigma is, however, like that of S. striolatum, and the 

 genitalia are not far different from those of that species. 

 On the other hand, the black sides of the thorax, ornamented 

 with conspicuous yellow spots, closely resemble those parts 

 of vS. scoticum and are very unlike the corresponding parts of 

 5. striolatum. Further, the dark line in front of the vertex 

 tends to continue downwards by the side of the eyes, as in 

 5. vulgatam ; the legs, too, are almost as dark as those of 

 S. scoticum. The two specimens are from Lochinver, in 

 Sutherlandshire — a male, taken 24th June, and a female, 

 7th July. I had already received the female of exactly the 

 same form from Stornoway, taken by Mr H. S. Fremlin in 

 1899. Some doubt was at the time felt about its identity, and 

 McLachlan, who was then living, came to the unsatisfactory 

 conclusion that it might be a hybrid between 5. striolatum 

 and S. scoticum. Details were figured by me in the 

 Entomologist, vol. xxxiii. (1900), p. 139. Perhaps ento- 

 mologists who visit the extreme north of Scotland will 

 look out for the insect during the present season. 



Of S. scoticum I received a male, taken at Nethy Bridge 

 on 7th August, and a female on nth August, as well as a 

 male from Spey Bridge, taken on the 8th. Libcllula quadri- 

 maculata was taken at Inchnadamph, Loch Assynt (a male 

 on 2nd June and a female undated) ; at Loch Assynt (a male) 

 on 8th June ; and at Nethy Bridge (a male) on 7th August. 



From Loch Assynt came a female, Cordulegastcr annulatus, 

 captured on 6th June, while a male, of date 6th August, came 

 from Nethy Bridge. In addition, Col. Yerbury sent me a 

 nymph of this species, apparently immature, picked up on 

 the shore of Loch Assynt on 13th June; a nymph-skin from 

 Lochinver, 28th or 29th June, found alongside a freshly 

 emerged male imago ; and another from Lochinver, found 

 on 27th June upon the trunk of an alder on the bank of the 

 Inver. Of sEschua juncea there were two males from Nethy 

 Bridge on 6th and 7th August, and another male from the 

 same place on 4th September. A much better capture, 

 however, was a pair of Aischna ccerulea — a male at Loch 

 Assynt on 6th June, and a female from the same place on the 

 3rd. Loch Assynt is a new locality for this scarce species. 



