. Contributions to Canadian palæontology. Paleontology. 108 CONTEIBITTIONS TO CAjSTADIAN PALEONTOLOGY 1906). There is also au example from Quilchena (July 31, 1906), in which slight difierences in detail may be recognized; but -which probably cannot be separated specifically from P. pictipennis. Both specimens are quite too imperfectly preserved to admit of exact iden- tification. The form from Quilchena exhibits a stout body greatly overhung by the wings, relatively short robust femora, but in the hind legs very long Fig. 11.—Penthetria ? pictipennis, Penthetria elatior,
. Contributions to Canadian palæontology. Paleontology. 108 CONTEIBITTIONS TO CAjSTADIAN PALEONTOLOGY 1906). There is also au example from Quilchena (July 31, 1906), in which slight difierences in detail may be recognized; but -which probably cannot be separated specifically from P. pictipennis. Both specimens are quite too imperfectly preserved to admit of exact iden- tification. The form from Quilchena exhibits a stout body greatly overhung by the wings, relatively short robust femora, but in the hind legs very long Fig. 11.—Penthetria ? pictipennis, Penthetria elatior, sp. nov. Pig. 12. Locality: Tulameen river, opposite Vermilion cliff—(August 6, 1906. ). A remarkably large form, with wings M™"' in length, slightly cambered in shape, and about three times as long as broad. The radius proceeds toward the anterior margin in a gentle curve and extends about seven-tenths the length of the wing. The sector originates at about one-fourth the length of the wing, and dichoto- mizes somewhat below half its own length, and directly above the termination of the radius. The anterior branch is strongly arcuate, long, and fuses in the anterior margin midway between the radius and the posterior branch of the sector. The radiomedial cross-vein is situated exactly between the origin and lihe furcation of the sector, immediately above the middle of the wing. The media bifurcates exactly in the centre of the wing. The cubitus takes a relatively oblique course toward the posterior margin, so that its pos'terior branch scarcely reaches beyond two-fifths the length of the wing. The medioeubital cross-vein is situated twice as far above the radio-. 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 resemble the original Geological Survey of Canada. Ottawa, Printed by S. E. Dawson
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectpaleontology, bookyea
