ANCISTROCAMPTA; SPATHILEPIA; OECHYDRUS; THORYBES. By Dr. M. Dratjdt. 879 



C. calathana He%v. (170 g) in its colouring and marking entirely resembles T. alladius from which, ealathana. 

 however, it is at once discernible by the different shape of the wings. Central and South America. 



C. compusa Heiv. (170 g) is above and beneath marked the same, only of a duller colouring, the trans- com-pusa. 

 verse bands somewhat more distmct, without any yellow colour on the hindwing. Amazon District. 



C. calanus G. & S. (173 a) is liliewise similar to calathana, but it has much broader wings. The hindwing calanv.s. 

 is not produced so far at the anal angle and above only the fringes are ochreous-yellow. Known from Mexico, 

 Guatemala and Panama. 



37. Genus : Ancistrocampta Fldr. 



In contrast with the neighbouring genera, the antennal club is here only moderately thickened, at 

 the pomted end angularly flawed, not bent, and at the exterior edge it shows scanty, minute bristles. Costal 

 fold absent; on the forewing the upper median vein rises far before the lower cell-angle. The posterior tibiae 

 armed with 2 pairs of spurs exhibit a bent hair-pencil. 



A. hiarbas Cr. (= ozias Hew.) (170 g) is above deep velvety brown with a large, yellow discal hiarbas. 

 hyaline spot narrowed on both sides, very much widened beneath at the proximal angle. The hindwing is 

 beneath brownish-or violettish-grey with a dark brown costal-marginal spot and such a transverse band from 

 the middle of the proximal margui to the costal-marginal angle. South America. 



A. celsus F. (= clearchus Plofz) (171 a) is similar, smaller, and the yellow discal band extends celsus. 

 in about the same width from the costal margin to the proximal angle; the under surface is just like above, 

 only of a duller brown. There are doubts about the nomenclature of this species and of the preceding. We 

 are of Godman's opinion that it is thus most correctly placed. South America. 



A. amyrus Mab. is closely allied to hiarbas. The groimd-colour is above and beneath uni-colom-ed amyrus. 

 black; the yellow discal band begins broadly at the costal margin and grows narrower towards the proximal 

 margin; beside it there is a similar, yellow subapical hyaline band divided into 6 small spots by the veins. 

 The palpi are dirty yellow, haired black. Colombia. Rio San Juan. 



38. Genus: S^pathilepia Btlr. 



Well distinguished by the shape of the wings with a very much projecting angle below the apex of 

 the forewing and a dentate border particularly on the hindwing, which is somewhat produced in the middle 

 of the distal margin and at the anal angle. Costal fold present. Posterior tibiae with hairy fringes and 2 parrs 

 of spurs. Only one species. 



Sp. clonius Ci\ (171 a) is above black with a white discal hyaline band, a series of minute apical donius. 

 spots and between them with a small oblong spot. Beneath very variegated with the same marking of the 

 forewing as above, only the oblique band being much broader at the proximal angle. Hindwing brownish, 

 at the costal margin mixed with bluish-grey and with large, dark brown spots bordered with light, the largest 

 at the costal margin triangular, with its apex crossing the cell and extending close to the proximal margin. 

 Very common from Mexico almost through the whole of South America. 



39. Genus: Oecliydrus Wts. 



The shape of the wings is very much like in the preceding genus, but the margin is not dentate, but 

 entire. Costal fold present ; all the rest is like the Spathilepia, except the hindwing of the cj exhibitmg a hair- 

 tuft on the upper surface. 



0. chersis H.-Schdff. (= evelinda Btlr.) (171 a) shows above the same coloming and marking as chersis. 

 Sp. clonius, and there also exist resemblances beneath ; the apex of the forewing and a large discal spot on the 

 hindwing are reddish-brown; the costal margin and base are mixed with a bluish-grey. Brazil, Amazon. 



0. ochrilinea Schs. is the same, but the discal band is yellow. Described from Peru. oclirilinea. 



0. aziris Hew. (171 a) differs above by only one small hyaline costal-marginal spot and the absence a-iris. 

 of apical spots. The under surface is very variegated: forewing light reddish-brown, towards the apex speckled 

 with a whitish-grey, with some black antemargmal spots, the margin itself being more grey. Hmdwing light 

 ash-grey with some dark brown spots partly tinted white on both sides. Rio de Janeu-o. 



40. Genus: Thorybes Scdd. 



The genus is closely allied to Cogia and chiefly differs by the absence of the hair-tuft on the hindwing. 

 Costal fold absent. 



