NEW BRITISH SPECIES, ETC., IN 1873. 87 



15. Anisotoma macropus, E. C. Rye, Ent. Mo. Mag., x, 

 p. 133, described (1 Novr. 1873). 



Three females and two males of this new species were 

 taken on various occasions during the past summer and 

 autumn (and not in the same precise locality on each occa- 

 sion), near Claremont, Surrey, by Mr. G-. C. Champion, 

 to whom I am much indebted for both sexes of it. M. Chas. 

 Brisout de Barneville immediately after the publication of 

 my description above quoted, has written to me that he 

 perfectly recognizes the species, of which he found both 

 sexes in the forest of St. Germain, in July, about eight 

 years ago, and that he has always considered it to be a 

 new species. 



Allied to calcarata in its linear anterior tibia3 and the 

 small apical joint of its antennee, this rather distinct species 

 may, in the male, be readily known from all others except 

 A. Triepkii by having its posterior femora suddenly and 

 obliquely contracted on the under side towards the tro- 

 chanter, the commencement of the contraction being nearer 

 the base than the middle, and forming a distinct and minutely 

 denticulated angle : the outer apical angle is entirely rounded 

 off, and the inner angle has a rounded prominence ; the hind 

 tibia3 are very long and thin, slightly incurved and very 

 slightly widened before the apex. 



From Triepkii, its smaller size, longer, narrower, and less 

 convex build, thin anterior tibine, scarcely bisinuated thoracic 

 base, nou-bisinuate posterior tibias, &c., readily separate it. 



The ? may be known from $ calcarata (its nearest 

 resemblance) by its uniform clear ferruginous colour, rather 

 longer build, and shorter antennte ; the more evenly rounded 

 sides, more evident posterior angles, and much less con- 

 spicuous basal sinuation of its thorax ; and the rather less 



