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''Latrodectus bishopi'' is the scientific name for the red widow spider which is endemic to certain habitats of Florida where it lives underneath palmetto leaves, primarily in sand pine scrub, a type of vegetation found only in peninsular Florida. ==Description== The red widow, ''Latrodectus bishopi'', has a red-orange cephalothorax, its abdomen is black with yellow rings outlining the rows of red spots and its legs are vermillion red. On its underside, it does not have the familiar hourglass marking, but a small red bar. ;Venom ''Latrodectus bishopi'' is believed to be venomous like the other ''Latrodectus'' members, though no bites by this spider are recorded in the medical literature; unlike cosmopolitan species such as the black and brown widows, it seldom comes into contact with humans. The LD-50 has been measured in mice as 2.20 mg/kg (with a confidence interval of 1.29-3.74), and each spider contains about 0.157 mg. ;Threatened species ''Latrodectus bishopi'', the red widow spider, is a threatened species in the United States. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Latrodectus bishopi」の詳細全文を読む スポンサード リンク
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