1905.] 57 



In order to test myself I mixed up top;ether all my males of 

 this group, aud as a result all the seven Lyiiton specimens 

 were separated from the rest without my being able to see 

 the locality labels ; I also took one female, which sex is 

 at present undescribed, but I will not attempt to give its 

 distinctive characters without more material. It is most 

 probable that Kowarz's C. varinns also occurs among the 

 unidentified specimens of this group, but I do not sufficiently 

 recognise it at present. 



(To be continued). 



TWO ADDITIONAL BRITISH SPECIES OF THE DIPTEROUS 

 GENUS ERIOONE, Rob.-Desv. 



BY ERNEST E. AUSTEN. 



In the course of re-arranging the Muscidcs {sensu latiore) in the 

 General Collection of Diptera in the British Museum, the writer has 

 had occasion to examine a series of British specimens of the above- 

 mentioned genus, recently collected and presented by Lieut. -Colonel 

 Terbury. The result of this examination shows that Erigone pec- 

 tinata, Girschner, and E. trmicata, Ztt., must be added to the British 

 List ; while E. intermedia, Ztt., which is given in italics in Verrall's 

 "List of British Diptera'' 2nd Ed. (1901), p. 25, must be confirmed. 

 Erigone intermedia was introduced (under Nemorcea) by the late 

 Mr. Meade (Ent. Mo. Mag., ser. 2, vol. ii, 1891, p. 232), who had 

 identified two males from Mr. F. Walker's collection as belonging 

 to this species. 



Erigone (Echinosoma) pectinota, Girschner (Entomologische 

 Nachrichten, vii, Jahrg., ISSl, pp 277-279, Fig. I a-c), of which a 

 single $ was taken by Col. Terbury at Tarrington, Herefordshire, on 

 August 1st, 1902, really belongs, owing to the elongation of the 

 second joint of the antennse, to the genus Eurgtliia, Kob.-Desv. This 

 has been pointed out by Girschner himself (Wiener Entomologische 

 Zeitung, xvii, Jahrg., 1898, p. 151), and by Brauer (SB. K. Akad. 

 Wiss. Wien, math.-naturw. CI., Bd. cvii, 1898, p. 531). Eor the 

 classification of our limited British fauna, however, it will suffice to 

 follow the scheme given by Brauer in the Verhandlungen der k. k. 

 zoologisch-botanischen Gesellschaft in Wien, Jahrgang 1893, p. 513, 

 where Eurythia is regarded as a sub-genus of Erigone. E. pectinata 

 was originally described from the $ , and unfortunately the ^ appears 

 to be still unknown. As pointed out by Girschner in his original 

 paper (Ent. Nachr., 1881, p. 277), the ? exhibits a deceptive resem- 



