PAPILIONIDAE : RHODOCERIDI. 1831 



peated beneath, excepting the broad margin of the outside, which is indicated only by 

 a series of dusliy brown, interspacial spots at its inner limit, more obscure on the 

 upper than on the lower half of the wing ; neither do the spots differ in size or form 

 in the two sexes, being larger and more distinct than those of the upper surface of the 

 male, but round or oval, as in that sex above; there is in addition a minute black spot 

 in the cell, midway between the extra-mesial spot and the base. Hind wings traversed 

 by two series of flue and rather faint, black or blackish brown spots, which appear as 

 the point of vague sagittate or lunulate spots pointed toward the outer margin, one 

 extra-mesial, the other intra-mesial, and corresponding in position to the spots of the 

 upper surf ace ; these are often subobsolete; there is a submarginal series of faint, 

 pale orange lunules, much more distinct on the lower than on the upper half of the 

 wing, clear and well marked only next the anal angle ; they generally take the form of 

 thin, sagittate spots, and are deepest in color along their middle line, fading to yellow 

 outwardly; they difl'erfrom the corresponding spots in the allied E. epixanthe in their 

 sharp angulation. Expanse of wings <? , 25 mm. ; ? , 29 mm. 



This butterfly is found only in the Dominion of Canada, where it ranges 

 from the southern coast of Labrador on the east to Lake Winnipeg and 

 the Saskatchewan on the west, and even, according to Edwards, as far as 

 Kodiak, Alaska. Geddes does not appear to have taken it in his collec- 

 tions west of Manitoba, so that it is hardly probable that it anywhere ap- 

 proaches near the southern borders of the Dominion, unless it does so about 

 Nepigon, where it has not yet been found. 



Couper found it in southern Labrador in July, but that is the only indi- 

 cation of its seasons which we have. In all probability it is single 

 brooded. Nothing is known of the early stages. 



PAPILIONIDAE. 

 SUBFAMILY PIERINAE. 



TRIBE RHODOCERIDI. 



CALLIDEYAS BOISDUVAL. 

 CALLIDRYAS SENNAE. 



Papilio sennae Linn., Syst. nat., ed. x, ii: 103, pi. 163, flgs. a, b (1779) ;— Stoll', Ibid., 



i: 470 (1758). Suppl., 13-14, pi. 3, fig. 1, a, b, c (1791). 



Callidryas sennae Butl., Lep. exot., 59, pi. Ca/lidryas orbis 9 Poey, Cent. L6p. Cuba, 



23, tigs. 1-4 (1871) ; — Scudd., Proc. Bost. soc. i pi. fl— upper and lower figures only] (1832). 



Dat. hist., xvii:20S (1875) ;— Edw., Trans. Papilio eubvh Cram. .Vap. exot.. n:SG,p\. 



Amer. ent. soc, ix: 11-12 (1881) ;— French, 120, figs, e, f (1779) ;— ?Sepp., Suriu. vlind., 



Butt. east. U. S., 120-124 (1886). i : 85-86, pi. 39 (1S4.S). 



Catopsilia se7inae Kirh., Syu. cat. diurn. Phoebis eubtile Hiibn., Samml. exot. 



Lep., 797 (1877). schmett., ii (1822-26). 



Papilio marcellina Cram., Pap. exot., [Not Papilio eubule Liun.] 



Imago. Head tufted with mingled yellow and pink tipped, vinous scales and hairs 

 of no great length. Palpi bright yellow, above like the head. Antennae yellowish 



