. The butterflies of the eastern United States and Canada [microform] : with special reference to New England. Butterflies; Butterflies; Papillons; Papillons. 1146 TIIK ni'TTKKI'l-IKS OF XKW ). hi- *. ffl'i. fact tliat in a niiiiiher of our catoriiillars ami pai'ticulnrly in those of tlic Papiiioninac, an entire eiianfjje of color takes place just previous to pupa- tion. Tlie period of pupation is prohaijly tlie most hazardous for an in- sect, as far as its acti\e external foes are coneerued. it ix'injr al)soluteIy helpless in this |)eriod and in a very sensitive state. 'I'he time rcfp
. The butterflies of the eastern United States and Canada [microform] : with special reference to New England. Butterflies; Butterflies; Papillons; Papillons. 1146 TIIK ni'TTKKI'l-IKS OF XKW ). hi- *. ffl'i. fact tliat in a niiiiiher of our catoriiillars ami pai'ticulnrly in those of tlic Papiiioninac, an entire eiianfjje of color takes place just previous to pupa- tion. Tlie period of pupation is prohaijly tlie most hazardous for an in- sect, as far as its acti\e external foes are coneerued. it ix'injr al)soluteIy helpless in this |)eriod and in a very sensitive state. 'I'he time rcfpiired for the eiuinf^e is mucii ixri^ati r in any one species than for ordinary cedysis in the same species ; and whatever the purpose of the chanjro in coloration may he, it will hardly fail to he noticed that in general all vivid colors arc suhdu(;d and entirely neutral tints assumed. There arc many instances among otlier caterpillars where most extraor- dinary reseml)lances arc assumed, very prohahly protective in their nature. Indeed in some of our own swallow tails tlie markings of the front part ofthe l)ody may very likely serve to idarm a foe al)out to attack, as they are really of a vvvy striking nature, especially when the creature assumes the attitude which if does when disturhed. We have, moreover, some cater- pillars which possess featiu'cs of a vci'v surprising character, doul»t!ess for the sake of proteciion : one ofthe eonimonest of which is the striking con- trast hetween creamy white and hlack, or some other dark tint, which makes tlie creature reseinl)le the vermiform dropping of a hird I This is true of all our s[)ecies of Basilarchia, of Polygonia faunus and, es{)ecially in their middle stages, of several of tiic I'apilioninae, such as Euphoeades troilus and Heraclidds cresphontes. All thesi' minu'tic colors are of advantage only as against their verte- hratc enemies. M'liachlan has pointed out, what every observer must discover, that they give the insect n
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbutterflies, bookyear
