NOTES ON THE WOOD-WASPS C'^//?EX) IN SCOTLAND i8i 



was found emerging, both sexes being present, from a block 

 of larch at Munches, Kirkcudbrightshire, by R. Service, and 

 recorded by him as S. juvencus in the Scot. Nat. (or 1891. 

 Peter Cameron recorded a specimen of vS. gigas from Port- 

 Glasgow, got prior to 1886. In " Notes on the Fauna and 

 Flora of the West of Scotland," published in 1876, the same 

 hymenopterist made the following statement : "Szrex gigas 

 and 6". juvencus have both occurred in the district, but in 

 such situations that it is extremely doubtful if they can be 

 regarded as native." Before the end of the nineteenth 

 century both species had reached Bute and Arran. The 

 earliest records the Perth Museum can give me for Perthshire 

 are in 1902 — one of each species. 



{e) List of Localities arranged according to the 

 Watsonian Scheme of Counties and Vice-counties. — The 

 getting together of the following data has necessarily 

 involved the examination of a wide range of literature and 

 a voluminous correspondence. I hope I have already 

 thanked all those who have so willingly assisted me with 

 records and specimens, but I wish again here to convey to 

 them my grateful thanks. The source of each record, so 

 far as known to me, is given in each instance. A tabular 

 summary here follows. It shows at a glance the counties 

 and vice-counties from which each species has been recorded. 

 As regards the " blue-black " species, it is naturally impossible 

 to decide now to which of the three species now recognised 

 most of the older records are referable, and they have 

 therefore been entered in the table under the general 

 heading " blue-black group." The Sh'cx parasite, Rhyssa 

 persuasoria, is also tabulated. After the table a detailed 

 list of records is given. 



[Table. 



