Mason : Eitpithecia pimpinelLata in North Lincolnshire. 345 



the posterior end. He therefore considers it to be a variety of 

 truncatellus, and in das ' Tierreich ' he names it Arrhenjirus 

 triincatellus georgei Piersig, reserving- the name Arrhenurus 

 trimcatelbis triincatellns Mtiller for the type specimen. It is 

 well to point out that Koch in his work on ' Dutch Water 

 Mites' 1835, describes a mite which he calls A. truncatellus 

 Miiller, and considers to be Tromhidiuvi truncatuhLm of Fabricius. 



Figs. 3 and 4.— Arrhenurus truncatellus georgei Piersig. 



He also gives a coloured figure, differing very considerably from 

 that of MiiUer, and which appears to have two convex pro- 

 jections at the posterior end, and is, I think, probably A. tnni- 

 catellus georgei of Piersig. Anyway, it appears that both mites 

 occur in Lincolnshire. I am indebted to Mr. Soar for the figures 

 which were drawn from my specimens. 



LEPIDOPTERA, 



Eupithecia pimpinellata in North Lincolnshire. — So 



long ago as the 15th September 1897 1 took by the sweep-net 

 some larvae of the genus Eupithecia. From them I bred several 

 moths, which, for a long time, I was unable to get identified ; 

 but finally, Mr. E. R. Bankes kindly named them for me as 

 Eupithecia pimpinellata. The larvae were taken in a disused 

 chalk pit about three-quarters of a mile out of Barton. This 

 year I searched and swept the Burnet Saxifrage in the same pit, 

 and in other localities near the Humber, in vain for the larvae. 

 Not having worked for them since 1897, it is possible that they 

 have removed to other quarters. The species is an addition to 

 the Lincolnshire List of Lepidoptera. — G. W. Mason, Barton- 

 on-Humber. 



1905 November i. 



