1906.] 57 



sided head, aud al«o iu the distinctly less rugose elytral punctuation, 

 but I cannot see that the colours of the elytra are more sharply 

 defined in one species than iu the other. 



9j Queen's Koad, South Norwood : 

 February, 1906. 



REUTERELLA HELVIMACULA, Enderl. 



A NEW GENUS AND SPECIES TO THE LIST OF BRITISH FSOCID^, 



AND THE DISCOVEKY OF ITS HITHERTO UNKNOWN MALE. 



(Plate I). 



BT H. L. r. GUEllMO^■PEEZ. 



On August 12th, 1892, I took at Boguor, Sussex, a ^ Psocid, 

 differing from any up to the present known to me. I had not been 

 fortunate enough to see another until last autumn, when Mr. Edward 

 Saunders kindly sent me in September a ^ , one of a dozen, which he 

 had taken on an oak stem at Chobham, Surrey, on August 7th, 19u5. 

 Since then he has forwarded for my inspection two $ s from half a 

 dozen $s and nymphs taken at same time and place as the J's. 

 These $ s I have compared with a $ example of Reuterella helvitnacula, 

 Enderl., kindly sent by Dr. Giinther Enderlein, its acute discoverer 

 and as they appear identical and considering that these ? s, found at 

 the same time and place as the ^ and with similar antennal structure, 

 are of the same species as the ^^ 1 conclude that these (^s are speci- 

 mens of the hitherto undiscovered J of Beuterella helvimacula, 

 Enderl., in which opinion Dr. Enderlein, to whom specimens of the 

 ^ have been submitted, agrees. Dr. Enderlein suggested that the 

 (^ would prove w^inged. The fortunate discovery by Mr. Saunders 

 of the (^sand ? s iu company has supplied the missing link. The 

 following description and illustrations are from the dried, pinned, 

 and carded specimens, and are therefore somewhat imperfect. 



Beuterella, Enderl., Zoolog. Anzeiger, 1903, p. 132. 



The ^ differs from Ccecilius (Curtis, 1837), Kolbe, ISSO, in the 

 radial and median veins not anastomizing for part of their length in 

 either anterior or posterior wings, but being connected by a short 

 transverse veinlet {== discal cross vein) ; and in the margin of 

 posterior wings being destitute of hairs, with the exception of 

 a fringe on the margin of cell of radial fork (= 2nd sub-marginal 

 cell). 



