PIERINAE: THE GENUS EUREMA. 



1073 



eufticifntly clianictcrized :uid too little is known of the flight and postures 

 of the butterrty, its iiabits or that of the caterpillar. 



LIST OF ILLUSTRATIONS.-XANTHIDIA NICIPI'E. 



Imago. 

 PI. 16, tig. 10. Female, both surfaces. 

 12. Male, both surfaces. 

 35: 7,8, 9. Male abdominal appendages. 

 40:9. Neu ration. 

 46:30. Androconium. 

 56:4. Side view with head and appen- 

 dages enlarged, and details of the structure 

 of the legs. 

 87 : !?. Club of antenna. 



EUREMA HUBNEK. 



EuremaHUbn., Verz. bek. schmett., 96 (1816). 

 Terias (pars) Auctorura. 



Xanthidia (pars) Auctorum. 



Type.—Papilio delta Cram. 



'Tis a woodland cuohautedl 

 When the phebe scarce whistles 

 Once an hour to his fellow, 

 And, where red lilies fl:iunted, 

 Balloons from the thistles 

 Tell summer's disasters, 

 The butterflies yellow. 

 As caught in an eddy 

 Of .air's silent ocean, 

 Sink, waver, and steady 

 O'er goat's-beard and asters, 

 Likes souls of dead flowers. 



With aimless emotion 

 Still lingering unready 

 To Io;ivc tlioirolil bowers ; 

 And the fuiiTit is iiu dumber. 

 But still j;)e;uns and flushes, 

 And gurgles and pla.^hes, 

 To tlie measure of summer; 

 The Inittortlieshear it. 

 And s|jcll-linund are holden, 

 .Still balancing near it 

 O'er goat's beard so^olden. 



Low^ELL. — The Fountain of Youth. 



Imago (56 : 3). Head not very large, profusely covered with rather short, coarse, 

 scale-like hairs, longest on the front. Front very slightly and rather uniformly tumid, 

 slightly depressed in front of the antennae, with a slight median ridge between the an- 

 tennae, parting posteriorly into still slenderer, diverging forks, opposite the middle of 

 the antennae and reaching their posterior edge ; a little hollowed down the whole 

 middle of the front; a little higher than broad, scarcely more than half as broad as 

 the eyes on a front view, the sides diverging considerably upward ; upper border slop- 

 ing toward and rounded off at the antennae ; lower border squarely docked. Vertex 

 tumid, higher than tlie level of the eyes, with exceedingly broad, rather deep, oblique 

 sulcations. separating the more swollen centre from the tuberculated, projecting, 

 outer angles of the front border ; the latter raised and ridged throughout its extent. 

 Eyes not very large, full, naked. Antennae inserted with the hind edge slightly in ad- 

 vance of the middle of the summit, in distinct pits separated from each other by a 

 space fully equal to the diameter of the second antennal joint ; scarcely more than 

 three-quarters the length of the abdomen, consisting of thirty-five joints, of which 

 about fourteen form the rather strongly compressed cylindrical club, nearly four 

 times as broad as the stalk, fully four times as long as broad, increasing very grad- 

 ually in size to the middle of the apical third, the last three joints forming a well 

 rounded tip, the terminal one with a minute, conical, bluntly pointed apex; down the 

 middle of the under surface, occupying the width of each joint, is a row of large, 

 shallow, circular depressions. Palpi very short and moderately slender, compressed, 

 scarcely longer than the eye; last joint minute, less than half as long as the penulti- 

 mate, which itself is scarcely two-thirds as long as the basal joint; all the joints 

 clothed rather heavily with scales, which do not protrude greatly beyond the border. 



US 



