. The moth book [microform] : a popular guide to a knowledge of the moths of North America. Moths; Papillons nocturnes; Papillons nocturnes; Moths. of which, u examined under the microKope, is seen to be quite different from that which prevails in any other family of moths. The accompanying illustration (Fig. ao) shows this arrange- ment in the case of the common Five-spotted Hawkmoth, (Protoparce quinqutmaculatus). The wings are small in comparison with the body. The front wings are very long In proportion to their width, and the costal veins are always very stoutly developed. The tip of the
. The moth book [microform] : a popular guide to a knowledge of the moths of North America. Moths; Papillons nocturnes; Papillons nocturnes; Moths. of which, u examined under the microKope, is seen to be quite different from that which prevails in any other family of moths. The accompanying illustration (Fig. ao) shows this arrange- ment in the case of the common Five-spotted Hawkmoth, (Protoparce quinqutmaculatus). The wings are small in comparison with the body. The front wings are very long In proportion to their width, and the costal veins are always very stoutly developed. The tip of the wing is usually pointed, and the margins are straight or evenly rounded, though in some genera, principally be- longing to the subfamily Ambulicintt, they have undulated or scalloped margins. The hind margin of the fore wings is always much shorter than the costal margin. The hind wings are relatively quite small. The venation of the wings Is characteristic. The primaries have from eleven to twelve veins, the secondaries eight, reckoning the two internal veins, veins I a and i *, as one. Veins eight and seven are connected near the base of the wing by a short vein, or bar. The discal cell is relatively quite small in both wings. There is always a frenulum, though in the jImbuHcinat it is frequently merely vestigial. The general style of the venation is illustrated in Figure 31, which represents the structure of the wings of Sesia tantalus Linnaeus. The hawkmoths have prodigious power of flight. A few genera are diurnal in their habits; most of them are crepuscular, flying in the dusk of evening, a few also about dawn. The larvae are usually large. There is great variety in their color, though the majority of the North American species are of some shade of green. They usually have oblique stripes on their sides, and most of them have a caudal horn, which in the last stages in some genera is transformed into a lenticular tubercle. In a few genera the anal horn is wanting. The ant
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmoths, bookyear1904
