. Contributions to Canadian palæontology. Paleontology. 110 CONTEIBDTIONS TO CANADIAN PALEONTOLOGY mediocubital eross-vein is situated more than three times as far above the ladiomedial cross-vein as is the latter anterior to the furca- tion o£ the media. Directly below the cubitus and parallel with it runs a distinct fold. Still farther below may be seen the basal portion of a strongly curved anal vein. A second wing lies on the same slab. It is not so well preserved as the specimen here described, yet undoubtedly belongs to the same individual. Pentheiria falcatula, sp. nov. Fig. 14. Localit
. Contributions to Canadian palæontology. Paleontology. 110 CONTEIBDTIONS TO CANADIAN PALEONTOLOGY mediocubital eross-vein is situated more than three times as far above the ladiomedial cross-vein as is the latter anterior to the furca- tion o£ the media. Directly below the cubitus and parallel with it runs a distinct fold. Still farther below may be seen the basal portion of a strongly curved anal vein. A second wing lies on the same slab. It is not so well preserved as the specimen here described, yet undoubtedly belongs to the same individual. Pentheiria falcatula, sp. nov. Fig. 14. Locality: Tulameen river, opposite Vermilion cliff—(August 6, 1906. ).. Fig. 14.—Penthetria falcatula, Handlirsoh. A distinctly cambered wing 11"™ i^ length, the breadth and the length being in the proportion of 1: 2-6. The radius stretches seven- tenths the length of the wing, and is but slightly curved; its sector springs off anterior to the first third of the length of the wing, bifur- cates at half its own length, and is distinctly arcuate. Its anterior branch is moderately long, curved, and fuses in the margin directly below the first third of the space between the radius and the posterior branch of the sector. The radiomedial cross-vein is situated midway between the origin and bifurcation of the sector, and immediately above the centre of the wing. The media dichotomizes a short distance below the middle of the wing, and forms two widely diverg- ing branches. The cubitus forks at one-third the length of the wing, and its posterior branch proceeds in a broad curve toward the lower margin, where it fuses somewhat anterior to half the length of the wing. A distinctly curved anal vein is present. The mediocubital cross-vein is twice as far from the radiomedial cross-vein as is the latter from the furcation of the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appe
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