Joli. 



1038 Additions: AGRIAS. By A. H. Fassl. 



form croesus into tlie entirely constant form sardanafalus of the lowlands of the Central x\mazon District. The 

 row of transitional forms from Paia to the Rio iladeira is at present so complete that a separation of croesus 

 and its similar forms from the northern daudia is no more possible. 



I took the typical form croesus in very fine and large specimens on the Rio Xingii as well as with 

 viiJcanus. a somewhat shortened red disc of the hindwing on the Rio Tocantins, from where also the figiu'ed form vul- 

 canus (113 Ba o) originates with a blue reflection towards the base and anal part on the hindwing. This is 

 already a transitional form to A. claudina (from Rio de Janeiro to Bahia), and still more so is a smaller and 

 more insignificant form from Alcobaca, the first of the rapids of the Tocantins, in which the quite transcellular 

 red spot receding towards the apex of the hindwing, encompassing yet the cell, extends in fine red lines along 

 the veins into the disc of the wing: loki form. nov. On the Rio Xingu I captured in numbers only the tjjpical 

 form croesus Stcjr., the legitimate o of which does not exhibit any blue bordering of the red colouring. (On 

 the Rio Tapajoz, however, there occurs already a form with a sar(lana2}ctlus-hhie anal edging of the red disc 

 on the hindwing and sometimes also blue colour in front of the red bow of the forewing which was placed 

 by Staudinger as a (J to Riffahrt's genuine $ of croesus from Chaves (Island of Marajo). I denominated 

 this form of croesiis decorated with blue of which I possess beside several ,^o also the very rare, likew ise anal- 

 tnichaeli. wards blue $ from the Tapajoz, according to its discoverer: A. michaeli. 



Cachoeira I, the first of the rapids of the Tapajoz, already has a form with a very small and along 



goilmaiudcs. the veins dissolved red spot of the hindwing, which is situate in a larger bluish-violet spot (godmanides Fassl). 



On the Rio Maues we find a somewhat smaller, very constant local race with carmine magnificent 



spots hued with violet without a blue bordering, which is more oval in the hindwing and distally less dentate 



piiUhrrri- than in croesus: pulcherrima Fassl. 



'""■ From the next large tributary of the Amazon, Rio Madeira, finally comes the t\'}3ical ■sardanapalus: 



but besides there occur sjDecimens poor in colours, in which the blue in the forewing is entirely absent. My 

 collector H. Strympel, however, also succeeded in capturing here 2 genuine ^(^ of sardanapalus which in 

 the midst of the blue disc of the hindwing exhibits yet the large red disc of croesus. I denominate the magnifi- 

 cent new form completing an inrexpected transition from the east from croesus over michaeli, from the south 

 hilm:ar. ivoin godiiiani to the genuine sardanapalus, as belsazar form. nov. (113 B a o). 



Among the greatest number of the (^o of sardanapalus l.ying before me from the Central Amazon low- 

 lands from Madeira to Peru, which are almost quite constantly coloured, I do not possess one specimen with 

 any trace of red in the hindwing; but instead of it the hitherto mrknown $$ of the genuine sardanapalus 

 are most surprisingly of a quite unexjDected variability, to such an extent that often all the analogies of 

 colouring which in the aforementioned eastern fornrs are bound to ceitain, far remote localities, occur here 

 in different $ forms of sardanapalus verus at the same place and time. As a tyjiical $ form among the 

 35 $9 l3^ng before me I denote the form with a uni-coloured greyish-black hindwing \vithout any trace of 

 ruhrhiuiUa- blue; since it had beeir observed by collectors already before, but not captured, rubrimediana I denominated 

 ""• $0 with red-hued medians of the hindwings: '}-ah. purpurea those in which these lines are condensed to a red 

 In ''('hi Ida discal spot of the hindwing; $-ab. brunhilda those .sjjecimens where the red in the hindwing is replaced by 

 a blue disc, sometimes yet with a blue distal bordering of the red bow of the forewing; thus a retrogression 

 stii}iriii((. to the colouring of the J". Finally I denominated ab. suprema (113 Bb $) an extraordinarily variegated $ 

 from Teffe exhibiting in the blue brunhilda-Bpot of the hindwing yet the red spot of the form purpurea. 

 Two $$ in which the apex of the forewing is ferruginous which occurs in no other Agrias-iorm above known 

 coriiiiala. to me, I described as $-ab. coccinata. 



As to the Andine forms of sardancipalus, we may supplementarily add after a consultation with H. 

 Lathy, that his form hades Lathy has black hindwings without any blue, so that decyanea, which ^\-as later 

 on described by Niepelt (p. 570), is to be cancelled as the synonym of it. ^Moreover, we must insert yet in 

 iidcnnediii.s. Fruhstorfer's description of the races of sardanapalus on p. 570 the form interniedius Fassl (from the Eastern 

 Cordilleras of Colombia) which was before described by me; it is the northernmost and most scantily coloured 

 form of sardanapalus at any rate, with a dull upper surface as in Agrias aedon to which, however, it does 

 by no means form a transition. 



A. narcissus does not range as in the previous work of Fruhstorfer between phalcidon and hewitsonius 

 but directly after aedon to which it is very closely allied and perhaps connected with it by transition in hitherto 

 unexplored districts (Veneziiela ?). The type occurring to the north of the Amazon invariably shows a red band 

 almost rectangularly touching the costal margin. On the western frontier of its range known hitherto, to 

 the north of Manaos, I discovered to my surprise only 2 5 with a magnificent ochreous-yellow instead of purple- 

 flirij^ota,- red band, whilst the SS were normal; V-var-. chrysotaenia (t. 113 B b). 



A still greater surprise oir my Amazon exploration was the discovery of a most magnificent, considerably 

 different race of narcissus in the southern Amazon District — from the Rivers Xingu. Tapajoz and Maues — 

 which in contrast with the very constant northern form varies so much at the same place and time that the 

 extreme: t forms, on their upper surface, do no more resemble in the least the exterior of narcissus. All the 

 representatives of this new southern race are considerably distinguished from the tyi^e by the red bow of the 



ma. 



