XYMPHALIDAE: IIELICOXINAE. 1811 



distinct and most extended iu specimens showing tlie greater number of similar mar- 

 ginal markings on the fore wing, and especially in the female. 



Beneath : fore wings pale fulvous, obscured with ashen and brownish fuscous in the 

 apical half; the markings of the upper surface are vaguely repeated beneath, except- 

 ing at the outer margin ; here they are somewhat different, consisting of white or 

 whitish sagittate spots in each of the interspaces; and, excepting in the upper median 

 interspace, generally made up of a series of overlying sagittate spots, that is of 

 arrow-heads containing more than one pair of barbs. Hind loings gray brown, of a 

 paler or deeper and warmer tint, often enlivened with variations in tone in different 

 parts, heavily traversed with dull, silvery white markings, which are especially col- 

 lected into a pair of transverse bands, besides tlie silvery white which margins the ex- 

 treme base of the costal border and the inner border ; the innermost of these crosses 

 the middle of the cell and is narrow, and thrusts out a tongue which runs to the ex- 

 tremity of the cell ; the outer crosses the wing slightly beyond the middle, marked 

 near but not at its outer edge by an extremely irregular, zigzag thread of brown, 

 which is more or lesslunulate in form in each of the interspaces, but crosses both of 

 the subcostal interspaces by a single angular marking, and the medio-submedian inter- 

 space with a single oblique line in continuation of tlie lower portion of the lunule of 

 the preceding interspace ; at the outer border in each interspace is a silvery lunule, 

 which is nearly transverse in all the interspaces excepting the upper median, where it 

 is very large and high, and in all is followed outwardly by a brown line, inwardly by a 

 deep brown or blackish cloud, more or less extended; between these and the mesial 

 silvery band a row of small, white-pupiled, black spots in most of the interspaces, in 

 the medio-submedian interspace becoming a transverse, sigmoid bar. Expanse of 

 wings (J , 37-40 mm. ; ? , 44 mm. 



Caterpillar. Last stage. Yellow, with blackish spines and three longitudinal 

 blackish stripes. Head black, as well as tlie thoracic legs and the ventral surface ; the 

 other legs are yellow (Boisduval and LeConte). 



Chrysalis. Ashen gray, with some paler light spots, and little dorsal tubercules 

 nearly white (Boisduval and LeConte). 



This butterfly is found over a wide extent of territory, being known 

 south of Lat. 40° from the Atlantic to the Rocky ^Mountains, and at the 

 higher levels of the west, even into the heart of Colorado, and ae far north 

 as Montana and, according to Geddes, at Brandon, Manitoba. 



Little is knoAvn of its history or how many broods there are, or how it 

 passes the winter. It flies in June in Colorado, according to Reakirt, and 

 the caterpillar, which is figured by Boisduval and LeConte, is said to feed 

 on Helianthus tracheliifolius. It awaits a biographer. 



SUBFAMILY HELICONINAE. 



Heliconii pars Linn., Fabr., etc.; Hfeliconides eoninae Bates; Heliconina Herr.-Schaeff. 



pars Boisd.; Heliconidae Doubl.; Heli- Nereides Hiibner. 



Imago. Butterflies of medium or rather large size, with exceptionally elongated, 

 slender bodies and elongated wings. Head large and broad. 



Antennae inserted on the summit, not in a pit, exceptionally long and slender, 

 straight, the joints so much elongated that there are rarely as many as forty joints in 

 all, sparingly scaled, the club variable but rarely very broad, straight. Palpi rather 

 slender, porrect. 



