DURHAM DIPTERA. 203 



XXVIII. 313. 



313. Eumerus, Mg. 



1 (2). Abdomen considerably red. (1608. sabulonum, Fin.) 



2 (1). Abdomen with pale spots, but no red markings. 



3 (4). Stigma black ; head large, nearly round ; eyes of 



male touching for a considerable space. 



(1609. ornatus, Mg.) 



4 (3). Stigma pale brown ; head rather small, semicircular ; 



eyes of male touching for a very short space. 



(16 10. strigatus, Fin.) 



314. Chrysochlamys, Rnd. 



1 (2). Arista blackish ; abdomen shining, with dull bands on 



the hind margins of the segments. 



161 1. Chrysochlamys cufirea, Scop. 



Hesleden, 5$, August, 1899; Brancepeth, 1 J, 

 18-6-02. 



2 (1). Arista dull reddish or yellow, the dull abdominal 



bands before the hind margins of the segments. 



(1612. ruficornis, Ztt.) 



316. Arctophila, Schin. 



1 6 14. Arctophila mussitans, F. 



Hesleden, 5 $ , 1 ?, August, 1898-99 ; Shull, 1 $ , 

 5-9-00. With the exception of Shull, I have only 

 seen this species on a few yards of waste ground 

 at the corner of a wood at Hesleden, and there 

 only during the last five days of August in two 

 successive years. It was fairly common on the 

 one spot, but I saw it nowhere else, except at 

 Shull, where I saw a pair, of which I secured the 

 male. " A few specimens at Harnham," C. Robson. 



