ARGYNNIS. By Dr. Th. Lehmann. 427 



tioii. The inner half pale buff, yellowish-brown, fuscous-grey to cinnamon-brown, mottled with paler tints. 

 The short white costal streak of the ^^^ is enlarged in the pale-coloured $$ to a narrow median band of 

 whitish-purple reachmg the inner niargm, and accompanied j^roximally as far as the median vein by a dark 

 narrow fascia, distally by a broader and somewhat darker band with ."> pale, dark-edged ocelli. Between 

 this and the pale greyish-brown ternien a narrow and strongly dentate, buff sid)marginal band, intersec- 

 ted in a most characteristic manner by the pale silvery white longitudinal streak which we also find in 

 the c^cJ. and whicli is continued toward the base by another, paler, elongate triangular s^jot within the 

 subbasal band. Occasionally we find in the basal area also a few obsolete dark dots, Frmge whitish, on 

 the nervules black. The $5 ^vith dark brown under surface present a very different appearance, and if one 

 compares the most extreme dark specimens with the lightest, fine might easily take them for two different 

 species. Specdmens taken at Ushuaia (Fireland) m November and December are on the whole rather .smaller 

 than the more northern specimens from Puntas Arenas, measuring only 1,25" as agamst 1,8" in the latter; 

 the smaller specimens (^,^) are above more dull brown, with the under surface of the hmdwings dark violet- 

 brown. One $ from Puerto Toro (Navarin Island, February 1906) is likewise quite chirk. A ^ captured 

 by Dr. Ohun on the Rio (xrande (East-Fireland) has the underside of the hindwings as well as the apex 

 of the forewhig (piite dark, dull brown-grey, differing greatly from the violet-brown colouring of all other ^^ 

 of that region; all these specimens are another i:)roof of the variability of the species. — An Argynnis 

 larva found by Dr. Michaelsen in Fall 1802 at Puntas Arenas probably belonged to this species; in length 

 it measured 1,2", its colour was fuscous-black, underneath pale brownish; above with -i rows of spines 

 densely covered with brownish bristles, those on the first segment longest, on the second 4 mm, on the 

 remaining ones 2 — 2i/2 mm in length: it most resembles the larva of A. aghijn.. but has the spines longer, 

 with stiffer and longer bristles. Head glossy black, covered with thin hair. Prof. BERCi gives in ,,Anales de la 

 iSociedad Cientifica de Argentina" a synopsis of cytheris Drury and dexaniene Bad. which he treats as two dexamenc 

 separate species, without, however, entering into further detail. From the imperfect description of Boi.s- 

 DUVAL.S it is not possible to recognize in his A. dexainene (from the Argentme Republic) any more than 

 in lathonioides Blanch., anything but cytheris $$ with pale and feebly marked undersides. Also A. niontana moutana. 

 Reed from the Central Cordillera of Chile, which was by Berg considered as identical with dexaniene Bsd., 

 appears in the figure as a similar, rather smaller Cytheris $. — lathonioides Blanch, is above pale fulvous, laihonvn- 

 slightly obscured in the basal area; the markings of the forewings somewhat broader and heavier than in ''''*• 

 normal cytheris, the median spots united to a strongly tortuous band. The postdiscal spots on both wings 

 heavy, likewise the submarginal row which consists of uncommonly large rhombic spots. On both wings the 

 terminal lines are broadly confluescent on the nerves, in the interspaces interrupted, representing a series of 

 fairly large spots placed on the extremities of the veins. But in the inner half of the hindwings the mar- 

 kings are cpiite slight. Underneath the forewings ai"e more yellowish-brown than in typical specimens, on the 

 hindwings the portions which in those are fulvous, are paler, greyish-brown with greenish tone. 1 $ (type) 

 from iSa. Rosa, in the Museum for Natural History at Paris. — anna Bhiuch. ( = anna Reed) appears, from anna. 

 several j",^ from Ushuaia in the Paris Museum, rather sinaller than normal cytheris: on the upper surface they 

 can hardly be distinguished from them except ))y the more conspicuous obscuration of the basal area which 

 on the hindwings reaches beyond the middle of the cell. Underneath the forewings are quite as in tj^iical 

 specimens, the hindwings fiery cinnamon brown, very densely scaled with yellowish, but without any markuigs 

 whatsoever outside of the two pale streaks. It is found, according to Edmonds, froni the >Straits of Ma- 

 gaUiaens to the Atacama Desert in northern Chile, up to altitudes of 6000 ft. Dr. Staudingee writes 

 concerning these forms: ,, Among the nrany hundreds of specimens I received from Chile I have never been 

 able to discern more than one very variable species, A. cytheris, with which surely also the form from Fireland 

 nmst be classed". — siga Hbn. refers to the northern, alpine form of cytheris, which, however, does not siga. 

 vary constantly from the typical form, either in size or colouring. — As valdiviana Phil, we find descri- valdiviana. 

 bed a form from Central Chile (Valdivia) deviating from ordinary cytheris in the unusually prominent and 

 heavy markings on the inner margin of the forewhigs; also on the hindwings the postmedian row of dots 

 is always very distinct, whereas in the more southern forms it is cjuite rudimentary. 



A. darwini Stand, was described from specimens taken by Dr. Nordenskjold near Puntas Arenas in darichn. 

 Novejuber and December 18!)5 (j j, 32 — 34 mm), and by Dr. Ohlin in February ISiXi on the Rio (h'ande 

 in East Fireland ($$, 30 — 32 mm). It probably is closely allied to the following A. iiiodesta which it seems 

 to connect with the preceding group. The original desci'iption of Dr. Staudinger's is as follows: "dar- 

 wini is about as large as the smallest Antarctic cytheris (30 — 34 mm). The J^ 'ibove paler and brighter 

 than those of cytheris, rather golden brown. The $ has the upper surface of the forewhigs and the uuier 

 margin of the hmdwmgs suffused with greenish-grey, in consequence of which the bright brown ground- 

 colour is here hardly noticeable. Tlie black markings as in most Argynnis. but heavier than in cytheris 

 and partially confluescent, formhig below the discal cell near the inner margin invariably a sharp outward 

 angle touching the median veui ; in all the fornis of cytheris with the exception of valdiviana this mark is 

 very slight, often almost completely absent. The first transverse row of black spots beyond the cell forms 

 in darwini a narrow, contiguous, strongly curved and dentate band, which is not observed in the southern- 



