. A manual for the study of insects. Insects. 328 THE STUD Y OF INSECTS, wings yellow (Fig. 403). A variety of this species occurs in California in which the lighter parts of the wings are pinkish instead of yellow. These moths occur in stony places, where the larvae feed on lichens growing on rocks. In the extreme southern part of our country and in the regions south of that, there occur highly specialized mem- bers of this family, in which the hind wings are greatly re- duced in size, and the veins of the hind wings coalesce to a remarkable degree. In some of these forms the discal por- tion


. A manual for the study of insects. Insects. 328 THE STUD Y OF INSECTS, wings yellow (Fig. 403). A variety of this species occurs in California in which the lighter parts of the wings are pinkish instead of yellow. These moths occur in stony places, where the larvae feed on lichens growing on rocks. In the extreme southern part of our country and in the regions south of that, there occur highly specialized mem- bers of this family, in which the hind wings are greatly re- duced in size, and the veins of the hind wings coalesce to a remarkable degree. In some of these forms the discal por- tion of the wings bears but few if any scales. Cosmosoma auge (Cos-mo-so'ma au^ge) from Florida (Fig. 400) will serve as an example of these. In this species the body and legs are bright red, with the head, end of abdomen, and a dorsal band blue-black ; the veins and borders of the wings are also black. Family Thyridid^ (Thy-rid'i-dae). The Windoiv-winged Moths, These little moths can be easily recognized by the presence of curious white or yellowish translucent spots upon the wings ; it is these spots that suggests the name Window- winged Moths for the family. In this family the antennae are either strictly filiform or slightly thickened in the middle: fy^^ the ocelli are wanting ; the palpi project horizontally, and are 'vii, somewhat longer than the head ; and the maxillae are strongly developed. The venation of the wings differs from that of all other families of moths,' in that all five branches of radius of the fore wings are preserved and arise ^^ ^ix from the discal cell (Fig. 404)."^ ,o^.-vj\n^soiThyrismacuiata. ^ similar type of vcuatioH is * In a single genus of the Pyromorphidae, Triprocris (p. 227, Fig. 268), all the branches of radius arise from the discal Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemb


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895