146 Lord Walsingham's revision of the 



of scales above to the penultimate tarsal joint. Abdomen, lateral 

 claspers wide at the base, slender and straight beyond ; the uncus 

 double, points closely approximate. The form of the uncus and 

 lateral claspers should probably be regarded as having rather a 

 specific than a generic value. 



Thysanoscelis liirsutus, n. s. (PL VII. , figs. 3, 3a, 3b, 3c). 



Head and palpi whitish fawn, inclining to ochreous above ; the 

 palpi with a few brown scales at the sides. Thorax whitish fawn, 

 speckled and mottled with brownish ochreous, sparsely irrorated 

 with dark brown scales, some beneath the costa, some on the disc 

 and beyond it, others on the fold ; the extreme base of the costal 

 margin is umber-brown ; three patches of raised scales are espe- 

 cially noticeable, one above, the other below the middle of the fold, 

 the third on the fold and near its outer end. Hind wings greyish 

 brown ; fringes cinereous. Abdomen greyish brown ; anal tuft 

 cinereous ; lateral claspers slender, rounded at the apex ; uncus 

 double, bent over, not angulated. Exp. al. 17^ — 20 mm. 



Espirito Santo, Brazil. I have two males of this 

 curious species, purchased of Deyrolle in Paris many 

 years ago. They obviously belong to the same group as 

 Acrolophus, Anaphora, &c, but cannot, so far as I can 

 determine, be rightly included in any hitherto described 

 genus. 



Ankistrophorus, n. g. 

 ('AyKi <iTf ov = a hook, <po$ih = to carry). 

 Type. Ankistrophorus corrientis, Wlsm. 



Labial palpi erect, thickly clothed; apical joint short, not 

 brush-like, not reaching the thorax. Maxillary palpi 3-jointed, 

 slender, not folded. Ocelli wanting. Antennce bipectinate, the 

 pectinations short, fringed with delicate hairs. Fore wings, costa 

 straight, apical margin oblicnie, scarcely convex; neuration as in 

 Anaphora; apical vein not forked. Abdomen, lateral claspers 

 more or less spoon-shaped, inverted ; uncus double, with small 

 supplementary lateral processes. 



Ankistrophorus corrientis, n. s. (PI. VII., figs. 4, 4 a, 4i). 

 Labial palpi cinereous, somewhat darkened above at the base. 

 Antennce cinereous. Head and thorax cinereous, the latter 

 strongly tufted posteriorly. Fore ivings cinereous, much clouded 

 and speckled with dark greyish fuscous, of which the more con- 

 spicuous patches are at the base and end of the cell, and above the 



