PAA[PniLIDI: ATALOPEDES HURON. 1661 



Satyritls witli tlu'ir lazy, t'ochle action on the one hand, and of some Nym- 

 plialidae "Hasliing like lightning" as tiiey pass hy, or of most Hespcridae 

 with their active bustling ways, on the other hand, is very marked. But 

 wholly apart from the muscular force rerpiired, the form of the wing has a 

 great deal to do with the character of the flight. Those which sail on ex- 

 panded wings always offer an exceptionally broad expanse ; the most rapid 

 flyers have always a pointed apex to the fore wings, the lengthening of this 

 part giving a greater leverage ; those which may double suddenly in their 

 flight never have the costal margin of the fore winacs straight. And since 

 the special form of the wing is characteristic of groups of greater or less 

 size, so between the members of such groups the manner of flying is ex- 

 tremely similar. 



It is thus that in the case of some mimetic Leptalids, the form of whose 

 wings is altered to as great a degree as their coloring and pattern, their 

 flight equally resembles that of their model ; the changes have gone hand in 

 hand and have given them an additional chance of life. It is not that they 

 have wantonly or intentionally changed their mode of flight by imitation ; 

 those individuals whose wings were longest had perfoi'ce to fly a shade 

 more like their models and had that better chance of freedom from attack 

 which greater likelihood of a mistake on the part of their enemies would 

 give them. 



ATALOPEDES HURON.— The sachem. 



[Velvet spotted skipper (Maynard).] 



Sesperia huron Edw., Proc. entom. soc. Atalopedes Huron Scudd., Syst. rev. Am. 



Philad., ii:16, pi. 1, figs. 1, 2 (1863) ;— Reak., butt., 57 (1872). 



Proc ent. soc. Philad., v: 150 (186B). Isoteinon huron Hew., Cat. coll. diurn. 



Pamphila huron Kirb., Syn. cat. Lep., 600 Lep., 228 (1879). 

 (1871) ;— French, Rep. ins. III., vii: 1,59 (1878); 



Butt. east. U. S., 312-313 (1886) ;—iIayn., Figured also by Glover, 111. N. A. Lep., pi. 



Butt. N. Engl., 60-61, pi, 8, figs. 94, 94a (1886). 38, fig. 9; pi. G, figs. 1, 2, ined. 



But at the window what comes in? 

 A lovely painted butterfly. 



Taylor. — The Morning's Task. 



Imago (17 : 8, 16). Head covered above with dark greenish yellow and black hairs, 

 the former in excess only in the <? ; beneath and behind the eye clothed with white 

 scales, tinged slightly with yellow beneath, deepening above into tawny; the tuft on 

 either side of the antennae of mingled tawny and black hairs. Palpi whitish at base, 

 becoming more and more suflTused with yellowish beyond, the apical third to half 

 pale lemon yellow, often tinged with tawny, or, in the $, interspersed with a few 

 tawny scales; the extremity, viewed from above, of mingled dark, greenish yellow and 

 black hair-like scales ; the apical joint is black above, and on the outer Inferior edge of 

 the middle joint is a row of black hairs ; the inside toward the tip is somewhat inf us- 

 cated. Antennae black, with purplish reflections above; beneath orange inwardly, and 

 pale yellow outwardly, the colors all extending upon the club, but the brighter ones 

 divided bv a broad field of blackish or brownish fuscous, occupying the whole of the 



