| 翻訳と辞書 | Micrathena 
 The spider genus ''Micrathena'' contains more than a hundred species, most of them Neotropical woodland orb-weavers.
 Only three species occur in the eastern United States: females of ''M. gracilis'' (the Spined ''Micrathena'') have five pairs of conical tubercles on the abdomen, female ''M. mitrata'' have two short posterior pairs, and female ''M. sagittata'' (the Arrow-shaped ''Micrathena'') have three pairs.
 ==References==
 
 *  (1850). Descriptions and figures of the araneides of the United States. ''Boston J. nat. Hist.'' 6: 18-35, 271-295.
 
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