288 



[December, 



met " in England " with the common and widely distributed arenaria 

 than with the rare and local triangulum, though possibly the latter may 

 not have been quite so rare with us in the 18th century as it has been 

 ever since. But I do not desire to press this point, believing the case 

 to be complete without it. 



I conclude, then, that xanthocephala, Forster (1771) should be 

 treated as a synonym of arenaria, L. (1758), and should not be 

 considered as a possible earlier name for triangulum., F. 



Brunswick, Woking : 



October 10th, 1914. 



Xantholinus cribripennis, Fauvel, in Oxfordshire and Berkshire. — Whilst turn- 

 ing out a mole's nest near Oxford, on October 17th, 1914, a pale Xantholinus 

 was taken, which I was satisfied was a $ of X. cribripennis, but as I do not 

 not know of any pronounced character for this sex, I did not cai-e to record it 

 from a southern locality upon a single female example. Upon mentioning 

 this to my colleague Mr. J. Collins, he examined his series of X. linearis, 01., 

 and found one taken at Cothill, Berks, on April 3rd, 1910, which he thought 

 might be another example of X. cribripennis, and not an immature form of 

 X. linearis, as he had at first considered it. On critically examining this 

 example, I found it to be an undoubted $ of X. cribripennis, the notched 



Fig. a. 



Fig. b. 



upper-plate (fig. a.) and excavate under-plate (fig. b.) of the seventh 

 abdominal segment being identical with those of examples from Dalwhinnie, 

 ex coll. N. H. Joy, in my possession. I also examined examples in Commander 

 Walker's collection, which he very kindly placed at my disposal, and found that 

 the Co. Donegal example, ex coll. J. N. Halbert, with some similar to my own 



