276 BIA. By G. Wkymer. 



trimrdatus. P. tricordatus Hew. (Coracles t.). Forewing with 2 fine points in the anterior part of the distal margin, 



its posterior part obtusely dentate; anterior part of the hindwing also obtusely dentate, only the 3 median 

 veins having long points, that of the first median projecting furthest. Above brown, distally lighter, the 

 margins dark brown, forewing with white costal spot, hindwing with a submarginal row of black spots. 

 Forewing beneath red-brown, striated with liglit yellovy, the forewing at apex and the hindwing dark brown 

 with white striation. The latter with several white spots, black margin and black submarginal band. From 

 Mapiri and the Illimani, Bolivia. 

 callipolis. P. callipolis Heir. (CVirades c.) (CO d). The teeth of the distal margin are not so pointed as in tricordatus. 



Above brown with dark margin. Forewing with a lighter brown sul)marginal band, proximally l)oi-dered 

 by a dark brown dentate stripe, similar to that shown in the figure of the under surface in the middle 

 of tiie forewing. From Bolivia (Illimani). For cnllipolis Stgr. cf. supra, p. 275, under C. (hpnantis. 

 unfortas. P. anfortas Thieme is larger tiian cnllipolis, the teeth of the hindwing longer. The ground-colour 



of the upper surface is cedar-wood brown. Basal area and distal margin of both wings dark brown. Beyond 

 the middle of the wing is placed a row of dark brown spots, on the forewing elongate, on the hindwing round. 

 In addition on the forewing 2 elongate spots in the cell and 2 round ones before the apex. Forewing beneath 

 brown with silvery bi'own submarginal macular band, its proximal edge dentate. Hindwing beneath with 

 brown discal band, before this a silvery half-band and distally a partly silvery, partly brown-dusted submarginal 

 band. From Cuzco in Peru. Rare. 



58. Genus: Bia Hiibn. 



An isolated genus, possessing various peculiarities. Palpus moderately long, thinly haired, the ter- 

 minal joint thin and pointed. Eyes naked. Forewing with the costal and distal margins rounded. Hindwing 

 produced at the inner angle into a jioint which projects far posteriorly and is placed on the first median vein. 

 In the forewing the costal vein is strongly inflated at the base, the median and submedian less swollen. 

 The cell of the forewing is longer at its posterior than at its anterior margin. On the hindwing there are two 

 hair-tufts (scent-organs) in the {J(^. One is placed in the inner-marginal fold and is composed of ochre-yellow 

 hairs about 3 mm. in length, whicli may be erect and diverging or again convergent. The other, at the anterior 

 margin of the cell, consists of short, erect, dark brown scales, which are partly covei'ed by long, smoothly appressed, 

 lighter brown and yellowish grey hairs. Inhabits )Surinam and the whole Amazon region as far as Peru. 

 adorion. B. acton'otl L. (60 e). The bright iridescent blue spot at the inner margin of the forewing in the (^<^ 



varies in size, in single examples from the Upper Amazon it occupies almost the whole distal margin, in others 

 it is very small or entirely disappears. In the 5 on the other hand the whole basal half of the forewing 

 nearly to the costal margin is bright iridescent blue. Under surface red-brown, densely covered almost 

 all over with fine light brown or yellowish brown undulate lines. Below the apex of the forewing 

 close to the distal margin is placed a small black ocellus with blue pupil. From Cayenne, Para and the 

 decaerulm. whole Amazon region. The form decaerulea Stgr. i. I. (60 e) shows no trace of blue reflection, on the other 

 atalanta. hand tiie brownish yellow band is somewliat broader. It occurs among the tyi:)e-form. — atalanta Rebel (60 e), 

 on the contrary, has on the hindwing a very bright dark blue reflection, occupying nearly all the posterior 

 half of the wing. The forewing is without reflection and the brownisli yellow l)and is very narrow. The 

 vuider surface as in actorion. Peru. 



A (I tl i t ions ;i n d C o r r e c t i o n s 



to the American Satyridae. 



theodnri. P. 182. Atitlrrhaea theodori i^/v//(,s/. is a form of philarctes only described in the female, in which, 



instead of the 4 blue spots whicli philareies $ has on the upperside of the hindwing, only 2 are present, and these 

 are pale grey. The under surface is exactly as in philaretes. From the Upper Waupes (North Brazil). — A. 



apoxyo- apoxyomenes Fruhst. approaches avernus Hpfjr.. Init is larger, with broader yellow-white bands on the forewing 

 mencs. .^j^,| more extended blue spotting on the hindwing. Bolivia. 



P. 183. Sinarista adoptiva Weyiii. The $ of this species has been found by Fassl likewise in the 

 Colombian West Cordilleras, in the Rio Aguaca Valley, at 2000 m. It is but little larger than the o > ''^'t. like 

 the $$ of Ant. geryon and geryonides, has broader wings, so that the apex of the hindwing is obtusely rectan- 

 gular. The point of the tail directed more distally. The ground-colour is somewhat lighter brown, the eye- 

 spots of the forewing are larger, have thicker white pupils and are bordered by obscure red-brown rings. 

 At the costal margin there is further a fourth, small, pupilled ocellus. The under surface is red-brown with 

 a broad band, striated with dark brown, across the middle of botii wings. In the distal area 4 white dots on the 

 forewing and one on the hindwing. 



■protonoe. In Caerois chorinaeus F. the $ is about 3 cm. larger than the ^. — protonoc Fruhst. is a form of 



