64 ROEBUCK : YORKSHIRE HYMENOPTERA IN 1878. 



Tentliredinidse/ in which he enumerates 46 genera and 325 

 species. (It is to be had from the Natural History Society of 

 Glasgow, price one shilling). The genera are arranged according 

 to an entirely new system, presumably embodying Mr, Cameron's 

 views as to the affinities of the group. This catalogue I have 

 adopted as the basis for the arrangement of the following records, 

 for which I am entirely indebted to Mr, S. D. Bairstow, the names 

 being supplied to him by the eminent Dutch entomologist Dr. S. 

 C. Snellen van Vollenhoven, of the Hague. 



Tenthredo livida L. Storthes. Woods, near Hudders- 

 field, 1878, Bairstow. 



T. instabilis King. Two (J, Storthes Woods, 1878, 

 Bairstow. 



Athalia rosae (Z.) Fairly common in Huddersfield dis- 

 trict, 1878, Bairstow. 



Selandria serva Fah. Fairly common in Huddersfield 

 district, 1878, Bairstow, 



S. stramineipes i^KIng). Storthes Woods, ?, Bairstow. 



Blennocampa tenuicornis {King). A "good series, 

 Storthes Woods, 1878, Bairstow. 



Fa^nily SIRTCID.F. 



Si rex juvencus L. To the authorities already quoted for 

 the occurrence of this insect in profusion at York, may be added 

 Stephens, Illustrations, vii, 116 (published Sep. 30, 1835). 



I have to supplement my first report by mentioning that in the 

 Zool. for 1854, xii. 4527, Mr, G, Norman recorded the occurrence 

 of insects buzzing about lilac trees at his place of business in the 

 middle of the town of Hull that year, and surmised that they had 

 been imported with Norway or Baltic timber: the insects were 

 referred to this species by Mr, Edward Newman. 



No doubt also this would be the species referred to by Mr, 

 Howard Vaughan (E,M,M., Nov. 1877, xiv. 141) where he stated 



Tran5.Y.N.U.,lS78. SeriesD 



