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Species Micrathena gracilis - Spined Micrathena

Black spider - Micrathena gracilis Debris Spiderling - Micrathena gracilis - male Debris Spiderling - Micrathena gracilis - male Bizarre spider - Micrathena gracilis  a new orb weaver - Micrathena gracilis Spined Micrathena - Micrathena gracilis - female Spined Micrathena - Micrathena gracilis - female spider - Micrathena gracilis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynes )
Family Araneidae (Orb Weavers)
Genus Micrathena
Species gracilis (Spined Micrathena)
Explanation of Names
Latin: "slender, slight"
Size
Females 8 - 10 mm, males average 4.5 mm.
One specimen (a female) from Durham, North Carolina, 30 July, measured 11 mm from head to tip of abdomen.
Identification
Females are mostly white or pale yellow, mottled with black or brown. They have ten spines on the chunky abdomen. Size 8 - 10 mm.


Males are flat with an elongated yellowish or white abdomen. They lack all but one or two abdominal spines and are smaller than females, averaging 4.5mm in size.