. Bulletin - New York State Museum. Science. AQUATIC INSECTS IN NEW YORK STATE 285 processes arranged in a triangle in the female larva. There is1 no such differentiation in E. fascipennis; the processes are four, and alike in the two sexes. Possibly Beling had the larvae of two species. An unknown Tipulid larva from a spring On plate 10, figures 4 and 5 we present a figure of a Tipulid larva of very unusual form. A few specimens were obtained July 19, 1901, from a small, cold spring brook near Fall creek, be- tween Ithaca and Yarna N. Y. The brook was filled with water cress, through which th
. Bulletin - New York State Museum. Science. AQUATIC INSECTS IN NEW YORK STATE 285 processes arranged in a triangle in the female larva. There is1 no such differentiation in E. fascipennis; the processes are four, and alike in the two sexes. Possibly Beling had the larvae of two species. An unknown Tipulid larva from a spring On plate 10, figures 4 and 5 we present a figure of a Tipulid larva of very unusual form. A few specimens were obtained July 19, 1901, from a small, cold spring brook near Fall creek, be- tween Ithaca and Yarna N. Y. The brook was filled with water cress, through which the cold water trickled, and was hidden in the dense shadow of a thick growth of trees. The larvae were obtained only beneath the water cress, in the thinjayer of soft mud overlying the rocky substratum. One larva was found, apparently preparing for transformation, occupying a little excavation among the roots of a layer of wet moss, in a crevice of a rock above the level of the water. This specimen was taken home for rearing, but was after- ward lost; I do not know anything about the other stages of this insect. The form of its respiratory disk is very different from that of Epiphragma just described, but, aside from that, it is more like Epi- phragma in form of body and prologs and in mouth parts than any other Tipulid larva known to me, and I think it will be found to belong to some species of larger size belonging near Epi- phragma in the series. Since my study of this larva Dr James Fletcher, of Ottawa Can., has sent me a specimen of it from his home. He says it is found "from time to lim<' in water brought from a spring through wooden pipes, ami used for ; It may prove a constant inhabitant of cold spring Fig. 19 Ventral aspect of head and mouth parts of unknown tipulid larva described herewith. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectscience, bookyear1887
