. Contributions to Canadian palæontology. Paleontology. Handlirach] CANADIAIT I'OSSIL INSECTS 123 branch of the cubitus proceeds in its original direction. The pos- terior branch of the cubitus bends at an obtuse angle above the furcation, and fuses dose to the first anal vein, which is gently curved. The second anal vein is slightly sigmoid in curvature. To all appearance this wing was transparent, the veins having opaque borders. This fossil is of the greatest interest, since it departs essentially from nil known recetit and extinct ptychopterids, and exhibits very primitive charactere. Thus
. Contributions to Canadian palæontology. Paleontology. Handlirach] CANADIAIT I'OSSIL INSECTS 123 branch of the cubitus proceeds in its original direction. The pos- terior branch of the cubitus bends at an obtuse angle above the furcation, and fuses dose to the first anal vein, which is gently curved. The second anal vein is slightly sigmoid in curvature. To all appearance this wing was transparent, the veins having opaque borders. This fossil is of the greatest interest, since it departs essentially from nil known recetit and extinct ptychopterids, and exhibits very primitive charactere. Thus, the radius with its sector is especially conspicuous, being still at the same stage as is found in the Liassic eoptychopterid EoUmnoUa geinitzi, Handlirsch. Notwithstanding its transient fusion, the media, also, is much more primitive than in the recent genera Ptychoptera and Bittacomorpha; yet not more so than in Macrochih spectrum. Low, from the amber, or in the recent but also very ancient forms, Tanyderus and Protoplasa. The media agrees best with the Liassic Proptychopiera liasina, Ha:ndlirsch. The development of the two anal veins is likewise very primitive. Ghironomidw:— Li the year 1877, Scudder mentioned some chironomids from Quesnel without describing them. Tipulidce:— Tipula tulameenaj sp. nov. Fig. 31. Locality: Tulameen river, opposite Vermilion cliff—(August 6, 1906. ). A wing at least 9°™ in length, about three times as long as broad, with a r'ather obliquely truncate apical border. The sector radii. Fig tulameena, Handlirsch. (Es=Seotor radii, M 1, 2, 3= Media. Cu 1, 2=Cubitus.) arises about the middle of the length of the wing, and forms two normal branches. The media bifurcates in the usual way: its an- terior branch is divi'ded, and above the forking it unites with the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these ill
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