Additions: PIERIDAE. By J. Rober. 1023 



very pale yellowisli-white, without any markings except a distinct discal spot and some blackish dusting 

 on the distal margin of the forewing. 



Col. euxantJie nigerrima Fassl is the dark (sooty) form occurring in both sexes, but transitions to vi'jerrima. 

 the normal form are more frequent. La Paz Bolivia, 3600 to 4000 m; Cuzco, Peru, 4000 to 4200 m. Very rare 

 among the typical forms. 



Col. tolima Fassl. ,, Similar to dimera (27 h) from the Eastern Cordilleras; forewing more rounded off, iolima. 

 the black marginal band proximally rectilinearly defined and not extending to the proximal margin, but ending 

 rectangularly in the middle between M^ and SM^. In the $ the black distal-marginal band differs quite analogously 

 from the $ of dimera. The dark hue on the bases of the wings and on the border of the hindwing is much fainter 

 than in dimera. One of the few diurnal lepidoptera which I discovered in exploring Mount Tolima, near 

 the snow-limit at altitudes of 4200 to 4600 m. The insects were flying at a terrific speed along the lava-moraines. 



1 mostty waited for a moment when the sun was hidden by nebulous clouds swiftly passing by and the insects 

 at once dropped into the grass as if they where paralyzed, and were easily taken with the pincers." 



Col. weberbaueri Strand. The original description says: ,,$ closely allied with C. dinora Ky. [ci.iceberbaueri. 

 Seitz, Macrolep. t. 27 g), but the forewing appears to be less tapering and its border more distinctly convex 

 in its whole length (in dinora it is in the middle straight), the hindwing is more elongate with a still more convex 

 resp. in the middle very bulgingly projecting border (the hindwing in this case being also slightly shorter [by 

 2V2 mm] than the forewing). The discocellular spot of the forewing is larger and more rounded off. The dark 

 margmal band extends to the anal angle, being in front about 7 mm broad, the proximal margin being proximally 

 quite blurred by dark dusting, in the posterior half, however, proximally more distinctly defined, and only 

 the veins there being dusted with black, along the vein 4 being 4 mm broad, along vein 2 about 2% mm; the 

 band encloses seven yellow spots, of which the foiu' situate between the costal margin and vein 4 are a little 

 larger and only parted by the veins, whilst that in area 3 is the smallest, and that in the anal angle indistinctly 

 defined and sometimes not at all recognizable as an isolated spot. The ground-colour of both wings above is 

 like in C. dimera 9 (cf . op. cit. t. 27 h). Hindwing at the apex (in the areas 6 and 7) with a dark, about 



2 mm broad marginal spot which, however, is almost removed by a lighter, enclosed spot. Besides there 

 is an indistinctly lighter, scarcely recognizable marginal band of 3% mm width . The fringes on the forewing 

 are rosy-reddish in the anterior half, yellow like the surface of the wing in the posterior half, whilst on the hind- 

 wing they are uni-coloured rosy-reddish. Forewing beneath in the ground as above, in the costal area dusted 

 darker, in the marginal area the markings from above show through; in the areas 5 and 7 there is at 3 resp. 

 4I/2 mm distance from the margin one small brown spot each, and the discocellular spot appears as a small, 

 black transverse ellipse. Hindwing beneath dusted with a dark greenish-yellow, being the lightest in the marginal 

 area, with markings as in dinora, the seven sublimbal spots, however, are darker and smaller, the discocellular 

 spot is likewise darker and distally pointed in the shape of a wedge and enclosing a snow-white, oblong puncti- 

 form spot. Expanse of wings: 33, length of forewings: 19 mm. The (J slightly differs from the $, and is somewhat 

 smaller: length of forewings 18, expanse of wings 31 mm, the ground-colour above being of a brighter yellow, 

 the marginal band of the forewing deeper black, more distinctly marked, extending uninterruptedly and in 

 the same distinctness to the anal angle, and enclosing before the middle three yellow spots which are quite 

 distinct but still smaller than in the ?, whereas the posterior half of the band shows only traces of three yellow 

 spots. Both wings in the basal area, the hindwing besides in the dorsal area densely dusted with a pm'e black; 

 the hindwing shows the same, though more distinctly marked marginal marking as the $. The under surface 

 is likewise more profusely coloured yellow than. in the $ and with more distinct markings, except the discal 

 spot of the forewing, which is entirely absent." 



Col. strandi sf. nov. (192 d only the first figure) of which 1 cJ is before me from Lake Titicaca, seems sirandi. 

 to differ from weberbaueri. The under surface on the hindwing and on the apex of the forewing is much distincter 

 than in euxanthe-r^, thus considerably different from dimera-,^, the coloin-ing of the other part of the forewing 

 beneath, however, not yellowish as in euxanthe-^ but dingy white with grey scaling, especially on the veins; 

 the red-brown spots on the forewing and hindwing are much smaller, and on the forewing there are but 2 of 

 them, one at the costal margin and the other subapically, in the three following areas of the wing there is one 

 minute spot each scarcely recognizable with the naked eye. It was denominated in honom- of Prof. Dr. Embrik 

 Strand. 



Col. dimera $-f. semperi Beak, is the white $ form which, however, seems to be more common sempcri. 

 than the cJ-like ?$. 



Col. blameyi Jorg. (194 d, second figure, as strandi) occurs in the Argentine Mountains (Aconquya) hlameyi. 

 at altitudes of 3200 to 3750 m and flies at the end of April on the blossoms of various Compositae, Verbena- 

 ceae and Malvaceae together with Phulia aconguijae and species of Tatockila. The under surface of the imago 

 shows the same scheme of markings as in euxanthe (27 h), but in the ground-colouring it is nuich paler (yellowish- 

 grey), and the discal brownish spots of the hindwing form a complete row; also the forewing shows 4 such spots. 



Col. emilia Edw. is probably the Pacific form of eriphyle (27 e), somewhat smaller and paler and with emilia. 

 narrower black distal margins. 



