The spider genus Micrathena contains more than hundred species, most of them Neotropical woodland orb-weavers.

Only three species occur in the eastern United States

United States

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: 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.

External links

• BugGuide: Pictures of Micrathena species
• Information about Micrathena
• Picture of Micrathena sp. (free for noncommercial use)