1905.] 225 



B. pilistriatn, and Battersea fields, Hertford, Norfolk, Somerset 

 and Crvvmlyii Bog for B. atriplicis). M. Bedel iuforms ine that they 

 are sometimes found together in Franco, 5. ^;«7i.s-/r*rt^« alone occurring 

 in Algeria. Stephens, it may be noted (Manual, p. 216), subsequently 

 treated the larger insect as a " fine " form of B. T-album. His name 

 plUstr'mta appears to have been overlooked b}'^ Sahlberg and others, 

 and it is not quoted as a synonym in the last European Catalogue. 

 The Linnaean description applies better to B. T-albmn than it does to 

 B. pilisfriata, and there is no valid reason for transposing the names, 

 if the two forms are to be treated as distinct. 



Horsell : August 26th, 1905. 



ZEUGOPHORA FLAFICOLLIS, Maksii., AND ITS VARIETIES. 

 BY G. 0. CHAMPION, P.Z.S. 



There are various discrepancies in the published descriptions of 

 this species, mainly due to Marsham's work not having been con- 

 sulted. Canon Fowler, for instance (Col. British Islands, iv, p. 280), 

 says that it has the posterior femora fuscous, vvherea.s in the insect 

 described by Marsham, and figured by Stephens, the legs are wholly 

 reddish-yellow. Weise, too (Naturg. Ins. Deutsehl., vi, p. 58), makes 

 the same mistake, and his variety australis (femoribus posticis rufo- 

 flavis),to which all the British specimens I have seen belong, is simply 

 typical Z.Jlavicollis. Marsh. The common form on the continent, at 

 least in mountainous districts, has the posterior femora black or 

 blackish. According to Bedel (Faune Col. Bassin Seine, v, p. 224), 

 the two varieties occur together in France ; but this is not always 

 the case, as a large number of specimens recently captured by myself 

 at Lautaret, Hautes Alpes, as well as many others taken several years 

 ago at Mendel, in the Austrian Tyrol, have the hind femora black. 

 The number of pale joints at the base of the antennae, again, is 

 variable (three in British specimens, as stated by Stephens, four in 

 the continental, according to Weise), as is also the shape of the tooth- 

 like prominence at the sides of the prothorax, it being sharply denti- 

 form in some of the continental examples. Weise describes yet 

 another variety, with the elytra reddish-yellow below the shoulders 

 (he notes a similar form of Z. subspinosa), but this I have not seen. 

 Our British insect, for specimens of which most of us are indebted 

 to Mr. Harwood of Colchester, is really very like Z. scutellaris, Suffr., 

 but differs from that species in having the head, except in front, and 



