30 ROEBUCK : ON YORKSHIRE SIRICID^. 



Si rex juvencus, L. York Minster : the males were taken 

 commonly flying about the tower and alighting on the roof, (A 

 H. Dav s in Loudon's Mag. N.H. 1832, v. 245 ; Curtis, Brit. Ent, 

 plate 253, March i, 1829). Curtis adds that no doubt they were 

 seeking the females which were issuing from the timbers that 

 supported the roof, and which would be weakened by the 

 constant operations of the larvse, as well as rendered combustible 

 by the multitude of passages and the quantity of dust created. 

 Mr. Robert Cook of York showed me some specimens of the 

 male, one of them very small in size, which many years ago he 

 took on the towers of the Minster. He tells me that it was 

 known to the collectors of that day as " The Minster Fly," and 

 that the insects were never seen on the Minster after the firing of 

 it by Jonathan Martin in Feb. 1829. 



The following extracts from the Stephensian correspondence, 

 sent me by Mr. E. A. Fitch, are interesting :— 



" Urocerus juvencus. Top of York Minster. Males abundant. 

 " Fem. rarer, and what is remarkable I have taken the males in 

 " plenty on the top of the minster, where I never saw a female 

 "but always met with them near the ground." — W. C. Hewitson, 

 j'2, Coney St., York, Jan. jrd, 1828. 



"I sent Mr. Giles (with whom I have long been intimate) 3 

 " small specimens of a Syrex which we take on the summit of York 

 "Cathedral." — Edward Horner, Darlington, 21st Feb., 1828. 



Scarborough, taken at sugar, Sept. 1857 (Robert Cook in Ent. W. 

 Int., Oct. 10, 1857, iii. 13) ! Barnsley, 1876 : a number given to 

 me by Mr. Thomas Lister (W. D. R.) Wakefield, W, Talbot 

 .(Cameron). 



Si rex gigas, L. Common in the West Riding; frequently 

 taken in various parts of Leeds ; also received from Ovenden, 

 where three were taken in 1875 by Mr. Joseph Ogden ! Common 

 at Wakefield : Mr. Talbot ! Mapplewell, near Barnsley : A. Beckett 

 Taylor ! Huddersfield : James Varley ! Strensall, near York (W. 

 Simmons in 'Naturalist,' October 1876, ii. 46). 



Trans. Y.N.U., 1877. Series P 



