50 THE ENTOMOLOGIST. 



femoralis, from Bentley Woods and Cavendish in Suffolk, during 

 early June ; and var. microcephala, found near Ipswich by Baj 7 lis, 

 and recorded by me from Barham (E. M. M. 1897, p. 267). The 

 handsome T. coqueberti, with its strong red and white markings, 

 is abundant, and I have a long series from Chatham (de la 

 Garde), Brandon (Elliott), Tostock (Tuck), Stradbally (Andrews), 

 Hereford and Malvern (Gorham), the New Forest, Suffolk, 

 Cambs, and Lines. T. excisa seems rarer, and, besides Louth 

 in Lines, I have it only from Tostock, Lavenham, Mildenhall, 

 Bentley, and Monk Soham in Suffolk. T. gynandromorpha I 

 have not seen, but T. dor sails, Lep., is by no means rarely swept 

 in my paddock here, in the Isle of Wight, New Forest, Wicken 

 Fen, and Andrews has sent it me from Milford Haven, usually 

 in woods ; though T. tilia, Linn., prefers marshes in the New 

 Forest, Earlham near Norwich, in Lines and Suffolk, usually on 

 sallow ; and Musham found it at Lincoln. T. campestris, Linn., 

 also occurs in my paddock, Matley Bog, and Wicken Fen ; Elliott 

 has swept it at Tuddenham, and Tuck about Bungay in July. 

 Adams has given me a single T. tristis, taken in his Lyndhurst 

 garden in the middle of June, 1907 ; Tuck found a female T. 

 dorsivittata, Cam., at Tostock eight years earlier ; and I captured 

 what Mr. Morice queries as a female T. pavida on a willow-leaf 

 in the garden here at the end of June, 1908. Three males of 

 T.fenestrata turned up in the Lincolnshire Market Rasen woods in 

 June, 1912, together with a female of T. spreta, the males of which 

 (or T. thornleyi) have been found in Matley Bog and my paddock. 



Comparatively few of our three hundred and sixty species are 

 rare, as will be seen by the above account of one who has paid 

 them no especial attention, but at the same time has hardly 

 ever rejected the opportunity of bottling those that have come to 

 his net. The group is a small one with us; Ptev. F. D. Morice's 

 admirable ' Help-Notes ' have rendered the discrimination of our 

 species a comparatively simple matter ; their life-histories are 

 no less interesting than those of the Lepidoptera, are more 

 fascinating because so very much less worked ; and the handsome 

 appearance, with facility of capture, which they display, should 

 recommend to everyone the study of our British Tenthredinidas. 



Monk Soham House, Suffolk : Nov. 20th, 1912. 



FKIENDS AND FOES OF THE CONIFERS. 



By J. W. H. Harrison, B.Sc. 



This paper is written chiefly for the purpose of drawing 

 attention to a factor in Economic Entomology, which, in spite 

 of its vital importance, seems to have been neglected ; this is 

 the value of the various Arachnids and Phalangids in holding in 



