184-i BUTTERFLIES BEYOND NEW ENGLAND. 



loiii,' as broad. Palpi very long and slender, projecting forward beyond the eye by the 

 diameter of the latter, the terminal joint nearly equalling the basal in length, but not 

 over a third as long as the middle joint. 



Fore wings triangular, elongated, the apex produced; costal margin nearly straight, 

 except at the extreme, roundly angulated tip, nearly a fourth longer than the inner mar- 

 gin ; outer margin gently and pretty regularly convex. Third superior subcostal ner- 

 vure doubly forked ; cell scarcely more than half as long as the wing. Hind wings 

 subquadrate in form, the costal margin distinctly, though broadly, angled before the 

 tip of the rather short costal nervure, the part beyond subparallel to the inuerraargin. 



Hind femora of male hardly more than two-thirds as long as the fore femora. 

 Fore tibiae half as long as fore femora ; first joint of fore tarsi as long as tibia, or as the 

 other subequal tarsal joints together. Hind tibiae nearly twice as long as hind femora, 

 and scarcely sliorter tlian first four tarsal joints; first tarsal joint scarcely longer than 

 the next two together, the others subequal. All the spines very short and thin. Claws 

 elongate, not very divaricate, equal and nearly straight on the basal half, beyond 

 strongly curved, tapering, pointed and bifid. Paronychia forming a simple, tapering, 

 tjluntly pointed, pilose lobe, a little sliorter than the claws. 



Mature caterpillar. Body vpith the segments divided into six sections, of which 

 the first is as large as the two succeeding. Besides the minute papillae bearing long, 

 slender hairs everywhere scattered over the surface, there are a very consideraljle num- 

 ber of much larger, high, conical papillae, bearing stifi" bristles, terminating in slender 

 hairs, which are arranged rather more conspicuously in transverse series on the sections 

 of the segments than in longitudinal rows, and they are found almost exclusively on 

 the first, second and fourth sections; they are two or three times as numerous as in 

 Antliocliaris, and much less regular. 



Chrysalis. Of the type of the tribe, but the front and hind halves of the body 

 less bent than usual, though subequal, the dorsal surface being nearly straight from 

 one extremity to the other, the ventral bent at a very broad angle. Frontal promi- 

 nence slender, conical, pointed, as long as the wings. 



Synchloe appears to be tolerably abundant in species, occurring in the 

 north temperate regions of both hemispheres ; in the Old World from 

 ocean to ocean, in the New, as often happens in such cases, only in the 

 western half of the continent. The characteristics of the group are very 

 similar to those of other Anthocharidi, they being early spring butterflies, 

 appearing but once a year upon the wing, but they seem never to have the 

 tip of tlie fore wings adorned with an orange patcli. 



SYNCHLOE OLYMPIA. 



Anthocharis olympia Edw., Trans. Am. ent. French, Butt. east. U. S., 117-118 (1886). 



soc, iii: 266-267 (1871); Butt. N. A., ii : An- Zegris olympia Kirb., Syn. cat. diurn. 



thocaris 1, figs. 1-4 (1874); — Streck., Lep. Lep., 806 (1877). 

 rhop. het., 64-65, pi. 8, figs. 9, (1874);— 



Imago. Head loosely tufted with very long white hairs mingled with many black 

 ones and with pale lemon yellow hairs and scales behind the eyes ; palpi white, with a 

 few black hairs intermingled in tlie fringe; antennae very pale luteous, rather lightly 

 scaled with white externally, excepting the naked tip of the club, which is pale luteous, 

 like the under surface, and excepting also a few scattered brown scales on the club 

 and the parts of the stalk adjoining. 



Wings aljove chalky white. Fore vtinys with an arcuate, transverse, blackish brown 

 bar at the extremity of the cell, its convexity outward, with tlie apex half way to the 

 extremity of the cell, bounded interiorly by a slightly arcuate line at right angles to 



