PAMPIIILIDI; THE GENUS ATRYTONE. 1607 



ATRYTONE SCUDDER. 



Atrytone* Scudd., Syst. rev. Amer. butt., 56 Hesperiii pars Aiiotorum. 

 (1872). Pamphila pars Auctorum. 



Type.—Hesperia iowa Scudd. 



Tbc virtuoso thus, at noon, 



Broilini; beneath a July sun. 



The {jikied butterfly pursues, 



O'er hed^'C ami Jitch, through gaps and mews; 



And, after many a vain essay. 



To captivate the tempting prey, 



Gives him at length the lucky'pat. 



And has him safe beneath his hat: 



Then lifts it gently from the grouud ; 



But ah I 'tis lost as soon as found ; 



Culprit his liberty regains, 



Flits out of sight, and mocks his pains. 



COWPER. 



Imago (59 : .•?). Head large, heavily clothed with moderately long hairs arranged in 

 transverse masses ; outside of the antennae a rather short, scarcely spreading bunch 

 of slightly arcuate bristly hairs, directed outward aud reaching about one-fourth way 

 over the semi-circumference of the eye. Front tumid and protuberant, greatly sur- 

 passing the front of the eye, most prominent transversely just below the middle and 

 on the middle half, above which it is slightly hollowed longitudinally in the middle, 

 nearly two and one-half times broader than long, the front margin a little concave and 

 eraarginate, laterally rounded off and forming with the sides a regular curve to the outer 

 edge of the antennae, separated from the vertex by a transverse. Impressed, straight 

 sulcation a little in advance of the middle of the antennae. Vertex scarcely tumid, very 

 slightly and uniformly elevated above the level of the eyes, considerably longer than 

 the front, separated from the occiput by a slightly arcuate, almost imperceptibly im- 

 pressed line. Eyes large, pretty full, nearly circular, naked. Antennae inserted with 

 their hinder edges in the middle of the summit, their interior edges separated by about 

 two and one-half times the diameter of the basal joints, the whole antenna fully as 

 long as the abdomen, composed of 3C-3'J joints, of which nineteen form the club, 

 which is about half as long as the stalk, the crook of which consists of eight or nine 

 joints, but occupies less than one-third the length; the inflated portion of the club is 

 cylindrical, increases regul.arly and rather slowly in size, largest at about the 6th-8th 

 joint and about as broad as the length of two and one-half joints, decreasing again, 

 gradually at first, more rapidly on the crook which tapers to a delicate point, the last 

 joint l)eing much longer than broad at base, the fourth or fifth joint from the tip being 

 of the size of the stalk; middle joints of the stalk about two and one-half times 

 longer than broad ; the third about f ourjtimes as long as broad. Palpi short and very 

 stout, less than twice as long as the diameter of the eye, clothed very compactly with 

 a mass of long scales, beyond which the apical joint, clothed only with recumbent 

 hairs, scarcely protrudes ; basal joint small, globose, somewhat cup-shaped, tumidly 

 produced at the anterior part of the tip and so slightly broader than long ; second joint 

 tumid, depressed posteriorly, a little arcuate, but otherwise cylindrical, the ends 

 rounded off, more bluntly rounded at tip than at base, as broad as the basal joint and 

 nearly three times as long as broad ; apical joint quite minute, ovate, a little pedicil- 

 late, half as long again as broad, bluntly rounded at tip and scarcely more than 

 one-fourth as long as the breadth of the middle joint. 



Prothoracic lobes pretty large, appressed, laminate, oval, angulated at the base, half 

 as long again as broad, as long as the shorter iliaraeter of the eye. Patagia very 

 broad at base, the posterior lobe less than half as broad, as long as the base, tapering, 

 pretty regular, but the point well rounded off; the length of the whole three-foiirtha 

 the width of the head. 



*aTpwT<iivTi, the unwearied one. 



