NYMPHALINAE: BASILARCHIA ARTIIEMIS. 297 



and in tlie outer series of normally long oranj^e lunules in the middle of the lowest 

 subcostal, subcosto-mcdian and upper median interspaces, here reduced to rather small 

 circular spots. The broad white belt of arthemis is quite wanting and in its place 

 is an exact repetition of the extra-mesial series of white spots descending from the 

 costa found in archippus, as well as the pair of white spots next the costa midway 

 between this and the apex, found alike in both species though more commonly single 

 in archippus ; the marginal markings are as in arthemis but somewhat suljdued. The 

 shape of the hind wings is that of archippus and so are most of the markings, the 

 orange, though dulled and in the outer half of the wing much restricted, as a whole 

 predominating; but in the exact position of the normal, transverse, black stripe is a 

 conspicuous though narrow band of white, broken at the black nervures into transverse 

 spots about twice as broad as long; and this white band, corresponding to, but more 

 curved than the belt of arthemis, is bordered on both sides but especially without with 

 black; and as the black margin of the wing is of unusual width (for archippus), the 

 orange spots beyond the extra-mesial stripe are, as in the front wings, vastly reduced, 

 being scarcely longer than broad ; the only markings of the marginal band is a single 

 roAV of faint and slender blue lunules and the white interruption of the dark fringe. 



Beneath, the resemblance to arthemis is a little stronger ; for though in the main, 

 the markings of the upper surface are repeated (with rather more prominent fulvous 

 ground), the immediate mai'gins of both wings are built on the arthemis pattern, and 

 indications of the varied mottling of the base of the hind wings faintly appear, though 

 only in paler and deeper fulvous, while the spots forming the white extra-mesial hand 

 are scarcely broader than long. Length of fore wing, 32 mm. 



The specimen described by Edwards is very similar to this and was also found in 

 Canada. It approaches arthemis a very little more closely than the one above de- 

 scribed. 



The occurrence of tAvo such similar foinus renders it probable that they are not al- 

 together uncommon ; and I have therefore thought them worthy of a distinctive name. 



Egg (64 : 15). Grayish green, the filaments white (after Edwards) ; micropyle (67 : 5) , 

 according to a draAving by Konopicky, with about a dozen rather large, kite shaped cells 

 around a ceiiti'al circle, surrounded by only one or tAvo roAvs of small polygonal and 

 subisohedral cells before the larger filament-bordered cells are reached. 

 * Caterpillar. First stage. Head (78 :21) glossy broAvn. Body above and beloAV yellow 

 broAvn, the tubercles concolorous, excepting those of the uppermost roAA's Avhich are 

 darker; hairs Avhite; prolegsand legs concolorous Avith body. Length, 2.3 mm. (After 

 Edwards.) 



Second staye. Head (78:22) AA'ood broAvu, but the Avhole front black. Body Avood 

 brown, more or less obscured Avith dusky tints especially at the incisures ; tips of the 

 tubercles and their papillae slightly paler than the ground. Length, 5 mm. 



Third stage. Head (78 : 23) black, its hinder surface AA'Ood brown. Body blackish 

 broAvn, A^aried Avith clay yelloAV on the hinder edge of the dorsum of the fourth and the 

 Avhole of the dorsum of the fifth abdominal segments and on the sides of the last 

 abdominal segment ; papillae of tubercles Avood broAvn, especially on the upper surface. 

 Length, 10 mm. 



Fourth stage. Head Avith the tubercles more prominent at the summit than else- 

 where, those at the back and sides long, conical and separated; color blackish, the 

 upper parts suflused Avith red, the summit, sides and sutures red, the tubercles mostly 

 concolorous with the ground. Body red-broAvn, someAvhat specked and mottled, es- 

 pecially at the incisures, Avith black, the tubercles ferruginous red or partly castaneous, 

 the mammiform dorsal elevations of the second abdominal segment castaneous, the 

 dorsum of the third to fifth abdominal segments and most of the sides of the fourth 

 yelloAvish, and an infrastigmatal gray butt' stripe on the sixth and succeeding abdomi- 

 nal segments, previous to Avhich it is brown. Most of the tubercles red. Length, 11.2 

 mm. (After EdAvards.) 



Last stage (74 : 26). Head (78 : 24) dark drab, the coronal tubercles obliquely trun- 

 cate; ocelli black. Body of various shades of green, especially oliA-«, the dorsal patch 



