. The butterflies of the eastern United States and Canada [microform] : with special reference to New England. Butterflies; Butterflies; Papillons; Papillons. TmC OKICIN OF ORNAMENTATION. 513 the ri'lus; acdially, Iiowever, wliile transiverso scrit's of <liirk spotn arc, next to (!)aiuls, the very coininonoMt pattern in Lepidopteni, I do not know of" a single instance in ImtterHies, and only one or two in niotlis. where siieh spots are seated npon the veins, excepting oidy snch as occur at tlie extreme margin ; such 8|)ots, in the body <â¢â¦ the wing, are invaria- l»ly place
. The butterflies of the eastern United States and Canada [microform] : with special reference to New England. Butterflies; Butterflies; Papillons; Papillons. TmC OKICIN OF ORNAMENTATION. 513 the ri'lus; acdially, Iiowever, wliile transiverso scrit's of <liirk spotn arc, next to (!)aiuls, the very coininonoMt pattern in Lepidopteni, I do not know of" a single instance in ImtterHies, and only one or two in niotlis. where siieh spots are seated npon the veins, excepting oidy snch as occur at tlie extreme margin ; such 8|)ots, in the body <â¢â¦ the wing, are invaria- l»ly placed in the iiifcrfipncrs between tiie longitudinal veins. The mode of" development of" eye-like spots, which Darwin has shown to l)e extrenKjly simple, is also oppose<l to Mr. Iliggins's theory, since these have their origin in a simple dark point in the interspaces, and yet give rise to some of" the most brilliant colors possessed by butterflies. We can hardly hope to obtain a rational explanation of the origin and development of ornamentation in i)utterflie8 without studying the eolor- patteriis of the lower ineml)crs of the same order. Tiiis sliould be our starting-point, since the mode in which the scales originate in the individ- ual precludes, I conceive, all hope of assistance from anatomical or em- bryolugical study. We have, indeed, an especial advantage in studying the numerous living types of moths, from the fact that, so far as the hind wings are concerned, all differentiation in coloring has been greatly retarded by their almost universal concealment by day beneath the over- lapping front wings. In sucii hind wings we find that the simplest attenis ha\e undergone, the transverse style of markings holds a fundamental |)osition ; and why such markings are far more prevalent on the outer than on the basal half of the wing, and are also so frequently scallo[)cd. All tiie steps of this process, as 1 have explained it, a|iply efpially well to the fr
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbutterflies, bookyear
