1096 THE BUTTERFLIES OF NEW ENGLAND. 



EURYMUS 8WAINS0X. 



Eurymus Swains., Horsf., Dcscr. cat. Lep. E. Oolias Auctorum. 

 lad. mus., 129, 134 (1829). Type .— Papilio hyale Linn. 



Whole tribes of yellow Ijutterflies 

 Dart mockinf'fy and wheel and soar, 

 Making it only'seem the more 



Impossible, this human death which lies 



Silent beneath their dance who live 



One day and die. 



H. K.—A Funeral March. 



Imago (56 : 2j. Head rather large, thickly clothed with very long, erect hairs, 

 longest on the front and toward the middle. Front a little and rather abruptly pro- 

 tuberant down the middle, especially below where it surpasses a little the front of the 

 eyes ; elsewhere nearly flat, with one or two longitudinal ridges on either side, espec- 

 ially below, low and insignificant; between the antennal pits a longitudinal sulcation. 

 deepest and broadest behind, separating into two diverging halves that portion of 

 the front which stretches rather broadly between the antennae ; as broad as high and 

 nearly as broad as the eyes on a front view, the sides diverging upward a little: upper 

 border scarcely rounded ofl" next the antennae ; lower border squarely docked. Ver- 

 tex broadly and gently tumid in the middle and a little so at either side, especially 

 above, where, at the produced projecting angles, it is slightly protuberant; anterior 

 border a little sinuous, elevated along its entire length above the parts in front, 

 rounded ofl' in the middle, abrupt at the sides. Eyes not angnlated next the anten- 

 nae, large, full, naked. Antennae inserted slightly in advance of the middle of the 

 summit in distinct, deep pits, open toward the eyes and separated from each other 

 by the width of the basal joint; no longer than the abdomen, consisting of about 

 thirty joints, of which tlie last nine or ten form a nearly cylindrical club, which is 

 two anil a half times as thick as the stalk and nearly or quite flve times as long as 

 broad ; it increases very gradually in size, attains its maximum in the middle of the 

 apical half and decreases, as gradually, to the terminal joint, which is large, very 

 broadly rounded, almost abruptly docked; down the middle of the under surface, the 

 middle of each joint has a shallow, circular or longitudinally oval depression or dim- 

 ple. P.alpi not very long, pretty stout, tapering on the apical half, ratlier more than 

 half as long ,again ,as the eye, the apical joint minute, the middle joint of the same 

 length as the basal, all clothed abundantly witli scales and furnished beneatli with 

 a thin fringe of not very long hairs, directed downward and a little forward. 



Prothoracic lobes, viewed from above, very minute, subglobular, a little appressed, 

 not so broad as the club of the antennae, placed obliquely ; viewed from the front, short 

 fabiform, half as broad again as high, nearly as long as high. Patagia of medium 

 size, long and rather slender, a little arched, scarcely tumid, more than three times as 

 long as broad, the outer border nearly straight, the inner border largely arched at the 

 base so that the posterior lobe, occupying the apical half, is scarcely lialf so broad as 

 the base, nearly equal, the tip bluntly rounded. 



Fore wings (40: 11) from two-tliirds to more than three-fourths as long again as 

 broad, the costal margin a little convex on the basiil third, beyond straight or scarcely 

 concave, toward the tip again a little rounded, the apical angle bluntly rounded ; outer 

 margin with the upper tiiird slightly rounded, below nearly or quite straight, some- 

 times scarcely concave in tlie middle ; inner margin straight or scarcely convex, the 

 outer angle broadly rounded oft'. Costal nervure terminating at some distance beyond 

 the middle of the costal border; subcostal nervure with three br.anches ; the first 

 .arises at the middle of the outer two-thirds ( J" , 61 : 0) or a little beyond the middle 

 ( $ , 61 : 10) of the cell ; the second a little (<?) or considerably (?) beyond the apex 

 of the cell; the third at one-third (? ) or slightly less than one-third (jj) the distance 



