324 CALIGO. By H. Frtjhstorfer. 



and the brown colour extends even beyond the apex of the cell. The basal half of the hindwing is lighter, 

 blue-grey. The under surface is at once distinguishable from eurilochus and liviiis by the yellowish brown 

 instead of grey-white colouring. The anal angle of the forewing is not whitish Init dark grey. The subapi- 

 cal ocellus of the forewing is much reduced and all the ocelli of the hindwing are also considerably smaller 

 and more narrowly ringecl with black outside. The large ocellus of the hindwing is not rounded but flat oval 

 and more like a cat's than an owl's eye. Bolivia. 



C. idomeneus is one of the most beautiful species of the genus, in habitus scarcely inferior to euri- 

 lochus, though it has narrower wings. It is even more susceptible to geographical influences than eurilochus, 

 and splits up into a series of local races, mostly sharply differentiated, of which only three extend beyond 

 central Brazil. Upper surface similar to philinos, but the forewing more pointed, with the submarginal 

 band differincf in the different races, sometimes pure white and strongly expressed, sometimes again darkened 

 or absent. Under surface always with prominent white patches in the cell, particularly in the ^(^ and a bril- 

 liant patch of white striation in the submarginal area of both wings. Hindwing always with round ocelli, mar- 



idomeneus. gined with bright yellow and placed in a brown or yellow foreground, idomeneus L., the name-type, inhabits 

 Surinam, where my collector Julius Michaelis captured large numbers by means of banana-bait. All the 

 examples before me bear a sharply defined white longitudinal band, terminating at the posterior median, on the 

 forewing, which in the $ is considerably more weakly developed and is already lost at the middle median. 

 $ beneath always more deeply coloured, more uniform than the (^, also in the distal area of the hindwing 

 apollonidas. predominantly striated with brown-yellow. — apollonidas subsp. nov. is only known to me at present in 2 

 (^(^ from Obidas on the Middle Amazon, where Michaelis found it in August and September. ^ easy to distin- 

 guish from idomeneus from Surinam by the purer white submarginal band of the forewing, which is not sharply 

 defined but extending into the apex of the cell and there gradually lost. The black submarginal area of the 

 hindwing narrower than in the name-type, hence the cell in particular more broadly tinged distally with ultra- 

 marine blue. Under surface of the hindwing without a definite brown anteterminal area, eye-spots larger, 



euplwrhus. bordered with paler yellow. — euphorbus Fldr. was lost for a long time, but was rediscovered by Dr. 

 KocH-GRiJNBERG and I have recently obtained examples also from the probable original locality, the Colom- 

 bian part of the upper Rio Negro, euphorbus is a poorly coloured, dusky local form with the band of the fore- 

 wing washed out and the blue on the upper surface deeiJcr and almost without gloss. Under surface very 

 variable according to the locality. One $ is predominantly dull smoke-brown, with only a slightly lighter 

 transcellular patch on the hindwing. The ? from Colombia (upper Rio Negro) on the contrary is distinguished 

 by a broad, band-like, nearly white median area and still more by the submarginal pointed marks, which 

 are proximally white but otherwise filled in with light brown. The Colombian ^ also is much darkened above, 

 the longitudinal band of the forewing costally yellowish, otherwise grey, and as narrow as in idomenides Fruhst. 



airatonides. For the latter local race I would propose the name stratonides subsp. nov. — marsus Stich. is a subordinate 

 marsus. form, deeper-coloured and more strongly shot with blue, about as in the form eujihorbus. Whitish band on 

 the forewing narrowed; costal and basal areas of the forewing with greenish gloss when viewed from in front. 

 Ground-colour to the end of the cell and the blackish marginal area blue-violet, slightly tinged with greenish. 

 Hindwing to the end of the cell with faint blue-green gloss, thence deep sky-blue; the distal margin, however, 

 remains quite narrowly black and is slightly dusted with whitish particularly behind the apex. The deep blue 

 reflection extends anteriorly almost to the costal margin, only proximally leaving a blackish grey silky area. 

 Hindmarginal area dirty yellow. Under surface with the characteristic glaring ochre-yellow colour in the poste- 

 rior area, communicating itself to the bordering of the posterior eye-spot, so that the ring of the eye-spot 

 is lost in the yellow area. The ground-colour behind the cell chiefly white and only very sparingly striated. 



idomenides. Para; also in other, localities together with the type-form. — idomenides Fruhst. Similar to the preceding 

 form, wings somewhat narrower, some of the examples smaller, ground-colour sometimes paler. Band of the 

 forewing in the (J narrowed, only visible in whitish colouring to close to the upper median vein. The blue 

 basal area of the hindwing reduced, in an oblique light always greenish, a narrow stripe with a deep blue 

 gloss bounding it distally ; the reflection only reaches to half the cell and is also posteriorly broadly separated 

 from the blue colouring of the distal margin or sometimes diffused along the posterior median vein as a deep blue 

 tone to the hinder angle. Distal margin slightly dusted with whitish; $ scarcely differing above except in the 

 reduction of the blue basal area on the hindwing; it extends here onlj' about to the end of the cell, the 



hippolochus. whitish band of the forewing terminates indefinitely at the anterior median vein. Peru. • — hippolochus subsp. 

 nov. The whitish longitudinal band of the forewing somewhat narrower, sharper than in idomenides from Peru ; 

 under surface lighter, all the whitish parts broader, submarginal area of the hindwing nearly pure white, almost 

 without striation, the submarginal band of red-brown pointed curves which in Idomenides extends distinctly 

 almost to the terminal border absent. Ocelli ringed with lighter yellow and then more broadly with black. 

 superba. Coroico, 1200 m., Bolivia. — superba Stgr. Apex of the forewing rather sharp, somewhat produced. Ground- 

 colour suffused with blackish, transverse band pure white, sharply defined, anteriorly slightly curved, posteriorly 

 ending in a point beyond the posterior median vein. Hindwing to the end of the cell with blue-grey basal 

 area, which in an oblique light shows a greenish, at the distal edge a deej) blue gloss; from here onwards 

 to the distal margin a sky-blue reflection is visible in an oblique light, only leaving a more or less large 



