PhM. 2S. X. 1920. ARICORIS. By Dr. A. Seitz. .721 



Beneath, thehindwmgs exhibit lighter veins and mostly (not always) small white triangles in front of the border. 

 Guiana, Amazon. The species is beside epitus the most common Aricoris. — pythioides Bilr. seems to be a pylhioides. 

 western form of lagus; from the quite similar salvini (141 k) the ^J differs by the light discal spot in the forewing 

 being small and often darkened, and by the entire absence of the light-blue cellular spot at the base of the fore- 

 wing above. — striata is a denomination by Deuce for $9 from Ecuador with a white oblique band, in which striata. 

 the anal part of the hindwing above exhibits blue striate spots. The rj issaid to be beneath entirely like typical 

 lagus, exhibiting above a somewhat larger discal spot and, in the inner-marginal area a blurred blue dusting. 



A. serica Ww. undoubtedly approximatse the preceding, particularly vpJutina. The (J has apparently aerica. 

 no white discal spot, but the metallic lustre extends almost over the whole forewing, so that only a broad costal 

 stripe and the apical part remain black. In the hindwing the reflection is chiefly confined to the part between 

 the lower cell-wall and the anal fold. Amazon. 



A. amethystina Btlr. ^ above black, with a violettish-blue reflection and a shortened white oblique amethysti- 

 band; beneath like pythia, but it has a more stretched costal margin of the hindwing than the latter and was, ^'^' 



therefore, looked at as another species. The $ ist not described. From Santarem on the Lower Amazon. 



A. pythia Hew. entirely resembles salvini (141 k), but it is smaller, the white spot of the forewing in pythia. 

 proportion to the forewing larger, the hindwing blue only in the anal part. $ blackish-brown wdth a white 

 oblique band having the shape of the yellow band in lagus (141 k). — salvini Stgr. (141 k) has above a white salvini. 

 oblique spot of the forewing of the ^ which is sacciformly expanded in the $; the (J has an almost entirely 

 light-blue, dark- veined hindwing, exhibiting beneath a yellow basal spot; the $ has beneath, at the hindwing, 

 triangular, white marginal spots. Upper Amazon and (somewhat less blue ,^,^) also in Colombia and Bolivia. 



A. cyanea Btlr. ^ above black, with a blue reflection and an indistinct white discal spot; P with cyanea. 

 an orange oblique band and a blue-reflecting disc of the wings. Upper Amazon, Ecuador. In the collections 

 there is mostly the Central American form jansoni Btlr. (143 a). The ^ has a large white discal spot, the $ jansoni. 

 a more flatly drawn out orange band. Both forms, moreover, occur beside each other, and the shape and position 

 of the oblique band varies to such an extent that entirely alike specimens come only from the same flying- 

 place. Near Orosi (Costa Rica) the band is very broad, near Chontales (Nicaragua) uniformly band-shaped, 

 narrower and lighter yellow, near Burica in Colombia behind the cell somewhat strangulated etc. Beneath 

 the ^ shaded in a sepia-brown, except an oblique band in the forewing and white, towards the margin thickened 

 rays in the hindwing. 



A. alcmaeon Hew. (142 k). ^ above and beneath dark-brown; above there is a violettish-blue stripe alcmaeon. 

 above the inner margin of the forewing, and the hindwing is entirely violet, the veins black. Under surface 

 without markings. Ecuador; we figure a specimen from Paramba. — maja Godm. (141 k) has above C[uit€ black maja. 

 f orewings and the hindwings have only at the border a brighter blue colouring ; but the under surface also exhibits 

 submarginal blurred spots. The $, in contrast with the preceding species, is more similar to the (J, but in front 

 of the distal margin it has white-blue wedge-shaped spots. Colombia. 



A. rhodinosa Stick. ,,$ of the shape of an epitus-^ but a little smaller; above black, the forewing with rhodimsa. 

 a broad, oblique pink band, the hindwing with long blue rays between the median veins; under surface paler 

 with few whitish basal streaks, the hindwing with rusty-yellow veins and white submarginal spots." The type 

 is a tS, l^ut it is not described *). From Sarayacu (Ecuador). 



A. megalia Stick. Certainly a form of the preceding, a little larger (24 against 22 mm). Differing by megaUa. 

 a broader pink band of the forewing and more distinct blue rays of the hindwing. Peru. 



A. fassli sp. (?) nov. (143 a). Considerably larger than the preceding (length of f orewings 29 mm). Disc fassU. 

 of all wings, except a costal stripe, of a bright metallic cyanic-blue. In front of the marginal part of both wings 

 a light-red band of a magnificent purple-violet reflection, being on the forewing nearly twice as broad as on 

 the hindwing. Under surface brown, the bands dull pink. Rio Songo, at an altitude of 750 m. Type a 5 in 

 Fassl's collection. — I am of opinion that all the 3 species described last are forms of one species. 



A. tapaja Sndrs. (143 a). ^ blackish-brown, forewing with a hemochrome, rather straight median tapaja. 

 band. Under surface brown with a submarginal row of white dots. The ^ varies at every habitat; sometimes 

 the bands are hemochrome and on both wings (typical specimens, if the bands are absent beneath), sometimes 

 the band of the forewing, or that of the hindwing appears also beneath ; then again the band of the hindwing 

 may be absent altogether (kewitsoni Ky.) and the band of the forew'ng may appear beneath instead; sometimes 

 again the band of the forewing is above broader and bent round like a hook, the colour more crimson than 

 hemochrome etc. As the '$, Staudinger figures a butterfly with orange-yellow, distallj^ black forewmgs and 



*) I fir.st took it to be a misprint that a $ is described of a species the only type of which is a (J, but E. Str.\xd con- 

 firms once more in another work (Lepidoptera Niepeltiana, p. 51) that the type is a (J. 



V 91 



