1378 THE BUTTERFLIES OF NEW ENGL.VND. 



EUDAMUS SWAINSON. 



Eudamus Swains., Zool. ill., ii :48 (1832-1833). Thymele Kirby et al., nee Fabr. 



Gonuiurus Bull., nee Hiibn. Type. — Papilio proteus Linn. 



Then didst thou pass me in radiance by, 

 Child of the sunbeam, bright butterfly ! 

 Thou that dost bear on thy fairy wings. 

 No burden of mortal sufierings ! 



Hemans. 



Imago (57 : 5). Head very large, profusely clothed with short, equal hairs, arranged 

 mostly in transverse appressed ridges, the principal one connecting the bases of the 

 antennae; a short, rather thick, equal bunch of bristly arcuate hairs are emitted from 

 the exterior base of the antennae and curve over the eyes, scarcely more than one-sixth 

 of their serai-circumference in length; the whole of the front projecting considerably 

 beyond the front of the eyes, so prominent across the middle as to be elevated into a 

 sort of transverse ridge, the most elevated part of which is in the middle of either 

 lateral half, equalling in prominence the basal joint of the antennae; the upper and 

 lower halves of the front divided by this ridge at scarcely more than right angles to 

 each other; laterally the border of the front is rounded, scarcely surpassing the middle 

 of the front of the antennal base, and so not reaching the edge of the eyes, in front and 

 behind scarcely convex, scarcely more than twice as broad as long. Vertex a little tumid, 

 rounded from in front backward, but not laterally, scarcely reaching the level of the 

 eyes, slightly longer than the front, meeting it by a considerable sulcation, scarcely 

 arcuate, most of it lying between the middle of the antennal bases, but at the extremi- 

 ties curving forward a little; and from the occiput by a brace-shaped, scarcely 

 impressed sulcation. Eyes large, full, slightly more broadly rounded behind than in 

 front, naked. Antennae inserted with their hinder edges at the middle of the summit 

 in slight pits, their interior bases separated from each other by two and one-half 

 times the diameter of one of the basal joints, exclusive of the crook nearly one- 

 fourth longer than the abdomen, the whole composed of fifty-four joints, of which 

 the last twenty-nine form the club, which is nearly one-third of the whole length, and 

 bent just beyond its middle at the thirty-sixth or thirty-seventh joint; the basal two- 

 fifths of the basal half of the club is gradually incrassated, and the apical three- 

 fifths of the same is of a nearly uniform thickness, subcylindrical and equalling in 

 width the length of three of the joints; the club commences to taper just before its 

 bend and tapers very gradually and regularly in a subquadrate form to a rounded tip, 

 ■which has one-half the diameter of the antennal stalk; the longest joints of the 

 stalk are about three times as long as broad, and the crook is generally recurved 

 pretty sharply, at much less than a right angle. Palpi very short and exceedingly 

 stout, scarcely longer than the eye, heavily clothed with scales, which, excepting on 

 the apical joint, are long and erect and form a dense mass; the basal joint broader 

 than long, bulbous, its apex hollowed for the reception of the middle joint and the 

 anterior portion produced to a considerable extent; the second joint tumid, pretty 

 regularly ovate, twice as long as broad and twice as long as the basal joint, nearly 

 straight, the apical joint minute, tumid, scarcely one-fourth the length of the middle 

 joint, with a short basal stem by which, although seated above the middle of the tip 

 of the basal joint, it is directed downward considerably ; it is tumid and slightly 

 longer than broad. 



Prothoracic lobes half as long as the eye, strongly appressed, laminate, viewed from 

 the front subfabiform, nearly one-half as long again as high, highest interiorly, sloping 

 off exteriorly above, the lower surface a little convex, the inner margin nearly 

 straight. Patagia large, long, slender, the posterior lobe a little arcuate, half as 

 broad as the extreme base, two and one-half times longer than broad, scarcely 

 tapering until near the tip, which is rather broadly rounded. 



