. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES AND MELANDER: CLASSIFICATION OF INSECTS 141 aquatic forms very short. Pro thorax large, free; mesothorax and metathorax firmly united; scutellum very large. Wings overlapping on the abdomen, the fore pair (hemelytra) tough at the base and mem- branous apically, the hind pair with large anal field, the venation much reduced and irregular, wings sometimes reduced or absent; legs of variable form, tarsi usually three-jointed, rarely reduced to two, or one joint. Abdomen with ten visible segments, frequently the ste
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES AND MELANDER: CLASSIFICATION OF INSECTS 141 aquatic forms very short. Pro thorax large, free; mesothorax and metathorax firmly united; scutellum very large. Wings overlapping on the abdomen, the fore pair (hemelytra) tough at the base and mem- branous apically, the hind pair with large anal field, the venation much reduced and irregular, wings sometimes reduced or absent; legs of variable form, tarsi usually three-jointed, rarely reduced to two, or one joint. Abdomen with ten visible segments, frequently the sternites are larger than the tergites; no cerci. Metamorphosis in- complete. True Bugs. 250. 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
