. A Reference handbook of the medical sciences embracing the entire range of scientific and practical medicine and allied science . do notvoluntarily attack man, so that injuriescome from handling them. yephhi. w-ater scorpions. Flat, ellipti-cal, or elongate aquatic insects with aIcuig respiratory tube extending beyondtheend of the abdomen. These probablynever attack man without provocation,but they can give a severe puncture withresults similar to those of the , giant water bugs. Large,flat-bodied brown or grayinsects with hind legs fringedwith hair for swimmin
. A Reference handbook of the medical sciences embracing the entire range of scientific and practical medicine and allied science . do notvoluntarily attack man, so that injuriescome from handling them. yephhi. w-ater scorpions. Flat, ellipti-cal, or elongate aquatic insects with aIcuig respiratory tube extending beyondtheend of the abdomen. These probablynever attack man without provocation,but they can give a severe puncture withresults similar to those of the , giant water bugs. Large,flat-bodied brown or grayinsects with hind legs fringedwith hair for swimming andthe fore legs fitted for grasp-ing insects or small fish uponwhich they prey. We liavetwo very common species,Belostoina (imericana Leidy,which has a .groove on thefore femora into which thetibiie fit, and the Beniicimgriseus Say, of equal orlarger size and scarcely dis-tinguishable from the firstexcept for the lack of thegroove of the fore are destructive to small fishes, and do not bite manexcept as they may be provoked by handling; and thentheir bite, though severe, is not dangerous unless extra-. ay 287S.—Scotouendra mutauwe-ps. a, tJnder side of head, show-ing faugs; 7j, under side ot last segment. (After Wood.) IfiO i I REFERENCE HANDBOOK OF THE MEDICAL SCIENCES. Insects,lusects.
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