. The fossil insects of North America, with notes on some European species [microform]. Insects, Fossil; Insects; Insectes fossiles; Insectes. DIPTB EA—MYCBTOPHILIDiB. 589 Tetragoneura. The presence of a such a vein being doubtful, we have pre- ferred to point out its affinity to Mycetophila. Tlie radial vein ends in the middle of the outer two thirds of the costa, and at its tip a distinct stigma, nearly three times as long as broad, occupies the space between the radial and costal vei-s. The tip of the wing is broken on one specimen and obscured on the other, so that the length of the costal
. The fossil insects of North America, with notes on some European species [microform]. Insects, Fossil; Insects; Insectes fossiles; Insectes. DIPTB EA—MYCBTOPHILIDiB. 589 Tetragoneura. The presence of a such a vein being doubtful, we have pre- ferred to point out its affinity to Mycetophila. Tlie radial vein ends in the middle of the outer two thirds of the costa, and at its tip a distinct stigma, nearly three times as long as broad, occupies the space between the radial and costal vei-s. The tip of the wing is broken on one specimen and obscured on the other, so that the length of the costal vein can not be deter- mined, although it appears to extend slightly beyond the tip of the cubital vein; the cubital is connected by the cross-vein to the radial but a short distance from its origin, and bends but little upward from the median vein to reach it; the middle discal vein, on the contrary, bends downward con- siderably an^ "^ ' « at a distance from the base, less than half-way from the median cross-vein to the tip of tiie radial vein, and an unusually broad space is left between its upper branch and the cubital vein, while .he fork of the hind vein is nearer the base than the separation of the cubital from the median vein. Length of body, ;>"; antennae, ™"; wings, ;""; tibiae (of fore legs !), ;'"; tarsi (of same legs), ;". Chagrin Valley, White River, Colorado. One specimen, (W. Denton.) ANATELLA Winnertz. AnATELLA TaCITA. PL 10, Fig. 13. A single specimen with damaged wings is referred here. The antennae are as long as the thorax, slender, equal, covered with fine short hairs Tiie legs are long and slender, the tarsi apparently longer than the tibiae, the latter armed apically with a pair of exceedingly long unoqua' spines, and all the legs thickly clothed with rather coarse spinous hairs. Wings dusky, the venation obscure, but apparently as in Anatella, there being no sign of any auxi
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectinsects
