22 ANNALS OF SCOTTISH NATURAL HISTORY 



with three almost equally broad yellow bands, on the second, third, 

 and fourth segments respectively ; first band interrupted, second 

 and third entire, with their anterior border straight and the posterior 

 emarginate ; fourth segment with the posterior margin yellow, which 

 colour extends over on to the anterior margin of the fifth segment, 

 round its sides and along its posterior margin ; all the yellow 

 bands extend to the lateral margins of the abdomen, and are con- 

 tinuous with those on the under side. These latter are similar in 

 shape to those on the upper side, with the exception of that on the 

 second segment, which is much broader and entire. Legs yellow, 

 fore and middle femora black on their basal half, hind femora with 

 the basal two-thirds black, fore and middle tibiae yellow, hind 

 tibiae slightly bent, with a blackish ring near their middle, tarsi of 

 all the legs black, with yellow metatarsi. Wings greyish, with a 

 yellowish tinge at the base and along the fore border, stigma 

 distinct, brownish, fourth longitudinal vein (third of Schiner) dis- 

 tinctly curved; halteres fuscous. Length of body 13-14 mm.; 

 expanse of wings 27 mm. 



CHRYSOCHLAMYS NIGRIFRONS, Egger (new to Britain} 

 A male of this species was captured in May of the past 

 year in Ferness Wood, on the right bank of the Findhorn 

 (county of Nairn), by Mr. R. Thomson, who has most 

 generously presented it to the Edinburgh Museum of Science 

 and Art. It is very closely allied to C. cuprea, Scop., 

 differing chiefly in the colour of the legs. In C. cuprea the 

 legs are entirely yellow, or, at the most, blackish at the 

 extreme base of the femora and the coxae. In C. nigrifrons, 

 however, the coxoe and the basal half of the femora are 

 black, while in the male at least the middle portion of the 

 fore and middle tibiae is much darkened. On the head the 

 frons of C. cuprea is yellow, but of C. nigrifrons quite black, 

 with a bluish-white reflection. Finally, the antennae, face, 

 and scutellum of the latter species are much darker in tint, 

 with the thorax of a bluish -black rather than a bronzy 

 tinge. 



DIDEA INTERMEDIA, Lw. At the same time as the 

 last-mentioned species, Mr. Thomson also sent for identifica- 

 tion, and afterwards as a donation to the Edinburgh Museum, 

 a specimen of Didea, which completely puzzled me, and led 

 me to think it the type of a new species. After carefully 

 examining it and considering the matter, I sent it on to Mr. 



