1909.] 29 



(? ? . Vei'}' variable in colour. Tliorax entirely black, or more usually with the 

 post-alar calli yellow, and a tendency that way in humeri and pleurae, rarely 

 wholly reddish-yellow ; abdomen black, venter in pale individuals yellow ; frons 

 rather broader than long, grey or black, under pair of supra-anteunal bristles 

 minute, antennae brown or black ; wings slightly tinged with yellowish, veins 

 fine and brownish, costa quite to middle of wing, fringe longer relatively and 

 absolutely than in any of the group; hind femora somewhat dusky at the tip, 

 but rarely conspicuously so, fringe of hairs on lower margin not unusually long, 

 tibial cilia as in flava ; hypopygium of medium size, inner parts concealed, a 

 small yellow ventral process is visible or invisible according as it projects or lies 

 flat against the under-surface of the hypopygium.. ..Ij — 15 mm. colliiU, n.sp. 



(To he continued). 



MYB.MECOPOUA BREFIPES, A NEW SPECIES ALLIED TO 

 M. UriDA, Ee., and an addition to the BRITISH FAUNA. 



BY E. A. BUTLEE, B.A., B.SC, F.E.S. 



Under the name Myrmecopora uvida, two closely allied species 

 seem to have been confused, a larger and louger-legged form which 

 {teste Deville) is the true uvida, Er., and a smaller, shorter-legged one 

 which has not been named, and for which I now propose the name 

 brevipes. I have the former from the Isle of Wight, and the latter 

 from Tiutagel, together with some from Plymouth, received from Mr. 

 Keys and Mr. Newbery. It was on bringing together in my collec- 

 tion the specimens from these diverse localities, that I was struck with 

 the difference between them, and was led to examine them more 

 closely. As a result, I felt convinced that there were two species. I 

 sent them to Mr. Newbery, who was also inclined to consider them 

 distinct ; he kindly forwarded them to Captain Sainte Claire Deville, 

 who has written as follows concerning them: — " Vos grands individus 

 de I'ile do Wight sont bien Vuvida vraie, telle qu'elle a ete decrite par 

 ErichsoD, et telle que je la possede de Corse et de Provence. Quant 

 a la petite forme, je la conuais tres bien, et je I'ai prise en nombre a 

 Jersey et en divers points de la Bretagne. .I'ai cru longtemps, avec 

 M. Fauvel, que c'etait seulemeiit une petite race septentrionale et atlan- 

 tique de Vuvida ; mais le fait que Vuvida vraie s'est conservee aussi en 

 Angleterre rend cette maniere de voir pen admissible. Les differences 

 que vous signalez sont absolument reelles ; elles se retrouvent sur les 

 exemplaires fran^ais ; j'en joindrai meme une autre concernant la 

 structure d(\s palpes maxillaires ; I'avaut-dernier article est beaucoup 

 plus long par rapport au dernier dans Vuvida, que dans I'autre. Je 

 crois done que la petite forme de Plymouth et du Cornwall est une 

 espece iuedite a decrire." 



