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TaxonomyBrowse
Info
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Species Neoscona oaxacensis - Western Spotted Orbweaver

Neoscona - Neoscona oaxacensis - male Neoscona Arabesca in it's web. - Neoscona oaxacensis striped spider - Neoscona oaxacensis Neoscona oaxacensis Unknown Spider - Neoscona oaxacensis  Is this a female Black and Yellow Argiope - Argiope aurantia  is commonly known as the yellow garden spider? - Neoscona oaxacensis Spider black unk_antelope Island 16 August 2017 - Neoscona oaxacensis Golden orb weaver?  - Neoscona oaxacensis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynae)
Family Araneidae (Orb Weavers)
Genus Neoscona (Spotted Orbweavers)
Species oaxacensis (Western Spotted Orbweaver)
Synonyms and other taxonomic changes
Explanation of Names
Neoscona oaxacensis Keyserling 1864
Size
Female 11-17 mm
Male 5-12 mm (1)
Range
w US (CA-TX-KS-WA) (+IN & RI?)
Remarks
You can separate N. arabesca from oaxacensis by the three pairs of dorsal, slanting, dark spots found on arabesca.
See Also

A ventral view will separate the two in a heartbeat. See A. packardi compared to N. oaxacensis:

A. packardi has 5 white dorsal marks while N. oaxacensis has more than 5. Also A. packardi has a dark band in the middle of the tibiae while N. oaxacensis' tibiae are light in the center. Compare:

The second white mark on A. packardi is longer than the second white mark on N. oaxacensis. Compare dorsals here:

A. packardi tends to have long white hairs coming off the abdomen. This can be helpful when separating juveniles. The legs of juveniles are also quite different with N. oaxacensis being less banded and having a visible central line on the carapace. Compare:

N. oaxacensis has a row of dots across the front of the abdomen in many cases.
Works Cited
1.How to Know the Spiders
B. J. Kaston. 1978. WCB/McGraw-Hill.