88 ANNALS OF SCOTTISH NATURAL HISTORY 



of haystalks, shifting moss, etc., and by examining windows 

 in country houses. 1 The latter is profitable for Oxyura, 

 Chalddidce, and other minute Hymenoptera. They may be 

 picked up by a moistened finger or by a camel-hair brush. 

 When my friendly correspondent Mr. John Hewitt, B.A., 

 was Curator of the Sarawak Museum, Borneo, I asked him 

 why he did not send me any micro-Hymenoptera. His 

 reply was that the sweeping net could not be used owing to 

 the nature of the ground, and more particularly, owing to 

 the presence of spiny plants which tore the net. Mr. Hewitt 

 then took to examining the windows, and in that way made 

 a most interesting collection of Cynipida, Oxyura, and 

 Chalcididce, all the species being undescribed, and many of 

 them belonging to new genera. 



SCOTTISH TARDIGRADA. A REVIEW OF 

 OUR PRESENT KNOWLEDGE. 



By JAMES MURRAY, F.R.S.E. 

 PLATE I. 



IN 1907 (8)," when summarising the knowledge of 

 Scottish Tardigrada, in connection with the work of the 

 Lake Survey, I gave a list of 4 1 admitted species. 



With extended knowledge it is now found necessary to 

 delete several species from the list, several have changed 

 their names, and a number of new records are to be added. 

 In consequence of these changes it seems desirable to take 

 another review of the Scottish species. 



The observations leading to these changes were made 



1 A hymenopterous insect which is to be found in windows is the Chalcid, 

 Ccrocephala cornigera, West, (formiciformis, West.). As I have said, it is to he 

 found in windows, also in barns and in old dwelling-houses, particularly in those 

 of which the wood-work is well holed by Anobium, the "Death-watch beetle,'' 

 on which it is a parasite. I have found it at Strath Glass, Rannoch, and Clydes- 

 dale, in barns ; also in Derbyshire in an old house in which Anobium was common, 

 crawling on paper. In size it varies from I to 3 mm., the latter being the length 

 given by Thomson in his "Hymen Scand." iv. 213. The smaller specimens 

 may be entirely black. I have found it in December. 



' Figures in brackets, in heavy type, refer to the Bibliographical List at the 

 end. 



