438 



NOTES ON EAST RIDING SPIDERS IN 1909. 



E. A. PARSONS AND T. STAINFORTH. 



In Spite of the inclement weather prevaihng during this season 

 of 1909, the result of the work accomplished amongst spiders in 

 the East Riding has been highly satisfactory. 



Not only have 22 species been added to the local list which 

 appeared in the ' Transactions of the Hull Scientific and Field 

 Naturalists' Club/ (Vol. IV. part 2, 1909), but many additions 

 have been made to the Yorkshire MS. list, which is in course 

 of preparation by Mr. W. Falconer, of Slaithwaite ; and speci- 

 mens of both sexes of Cornicularia kochii Camb., a species new 

 to Great Britain, have been taken on the Yorkshire shore of 

 the Humber, and at several points on the North Lincolnshire 

 shore. (See 'The Naturalist,' Aug. and Sept.). To Mr. Falconer 

 we are deeply indebted for his courtesy in identifying all the 

 species referred to in this paper. 



The most fruitful source for new records, as in past years, 

 has been the Humber foreshore and Spurn Point. 



Humber Shore. 



Differing in character from any other part of the Riding, 

 the Humber shore yields several peculiar forms. The most 

 important discovery apart from that of C. kochii, was Lycosa 

 purbeckensis, var. minor, F. O. P. Camb., a notable addition 

 to the Yorkshire list. 



On a coldish day, early in May, the compilers obtained two 

 males and one female of this species, hidden at the roots of 

 saltmarsh plants on Saltend Common. On May 15th, another 

 female was found in the same locality. On May 20th, a male 

 was captured on the Humber shore between Hull and Flessle. 

 On May 23rd Saltend was again visited, and in the bright sun- 

 shine, the species was observed running about in great numbers 

 on the saltmarsh plants, both at this point and on the ' growths ' 

 of the Humber shore, between Marfleet Creek and Lord's 

 Clough. On May 29th, an example of each sex was taken on 

 the shore, between Hull and Hessle. On June 13th, a single 

 female was captured on the clay at the Kilnsea end of the 

 Humber side of Spurn It seems probable, therefore, that the 

 species occurs on the Yorkshire Humber shore from Spurn to 

 Hessle, and possibly further west. It would be interesting to 

 learn whether it is to be found on the Lincolnshire side of the 

 estuary. 



Naturalist,, 



