. Bulletin - New York State Museum. Science. 228 NEW YORK STATE MUSEUM above the end hook on the distal margin are two other strong hooks, the one next the end hook being twice the size of the other above it. Prothorax with a pair of elevated, round tipped prominences each side of the dorsum. Legs thin, smooth, long. Wing cases reaching as far as the base of segment 5 of the abdomen. Abdomen smooth, cylindric, with lateral margins becoming sharp posteriorly and generally ending on segments 7-9 in a sbavp. flat, lateral spine. Gills variable in size, and easily broken off; the median one flat,
. Bulletin - New York State Museum. Science. 228 NEW YORK STATE MUSEUM above the end hook on the distal margin are two other strong hooks, the one next the end hook being twice the size of the other above it. Prothorax with a pair of elevated, round tipped prominences each side of the dorsum. Legs thin, smooth, long. Wing cases reaching as far as the base of segment 5 of the abdomen. Abdomen smooth, cylindric, with lateral margins becoming sharp posteriorly and generally ending on segments 7-9 in a sbavp. flat, lateral spine. Gills variable in size, and easily broken off; the median one flat, the two lateral ones triquetral, all with thin margins, and apexes rather 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 New York State Museum; New York State Museum. Albany : New York State Education Dept
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectscience, bookyear1887
