216 Descriptions of British Diptera. 



brown : wings having a brown stripe along the outer border but not 

 reaching to the apex. 4^ lines. 



Has been found near London^ but we have not heard of any other 

 British localities. 



CONOPS MACROCEPHALA. 



Linn. Fabr. Meigen, iv, 125, pi. 36, fig. 27 ; De Geer, vi. 263 ; Cnrtis' Brit. 

 Ent. pi. 377. 



Larger than any of the preceding ; black ; head and antennae 

 ferruginous ; face yellow, with a brown streak extending from the 

 crown to the antennae, and a triangular mark of the same colour 

 below them : thorax with a whitish changeable spot on each shoul- 

 der : abdomen having all the incisures yellow or whitish-yellow, 

 the first segment swollen ; the second long, and tapering to the 

 hinder extremity, the remainder forming a thick incurved club : 

 halteres and legs ferruginous ; the coxae and base of the thighs 

 dark-brown : wings with a broad testaceous stripe along the outer 

 margin. 7 lines. 



Rare : " The specimen figured by Mr Curtis was taken by me 

 on 18th August 1824, in my own field at Hurne, Hants, in com- 

 pany with others of the genus. Mr Davis writes me that he took 

 another example in Darenth wood, Kent, but I have not yet been 

 able to compare his specimen with mine, to determine their specific 

 identity." /. C. Dale, Esq. No other British locality has hither- 

 to been discovered, as far as we know. 



CoNOPS NIGRA, (s.) 



De Geer, vi. p. 105, pi. 15, fig. 9 ; Meigen, iv. 126 ; Herbs, Gemein Naturg. 



viii. 117,5, pi. 70, fig. 5. 



About the size of the preceding : head reddish-yellow ; the fore- 

 head with a black stripe, and the hypostome with four narrow black 

 lines : region of the mouth likewise black : antennae ferruginous : 

 thorax entirely black, with a small indistinct spot with a yellow 

 play of colour within each shoulder : abdomen likewise black ; the 

 hinder margin of the first and second segments with a very indis- 

 tinct narrow ring of a somewhat paler hue than the rest, the nar- 

 rowest part at the base of the third segment : legs ferruginous ; the 

 coxae and base of the thighs black. Halteres yellow, blackish at 

 the base : wings with a broad testaceous stripe covering the ante- 

 rior half. 



This species is certainly pretty closely allied to C. macrocephala, 

 but it appears sufficiently distinct. Little notice seems to have 



