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TaxonomyBrowse
Info
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Species Aculepeira packardi

cactus spider - Aculepeira packardi - female cactus spider - Aculepeira packardi - female Orb spider - Aculepeira packardi Orange spider - Aculepeira packardi - female ?? - Aculepeira packardi beaus spider - Aculepeira packardi - female yellow orbweaver  - Aculepeira packardi - female White and black spider with big sac - Aculepeira packardi
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 Aculepeira
Species packardi (Aculepeira packardi)
Synonyms and other taxonomic changes
This spider is referred to as A. packardii in the work cited.
Explanation of Names
Aculepeira packardi (Thorell, 1875)
Identification
Female
Range
Yukon Territory to Labrador, south the Mexico and to northern Pennsylvania. (1)

AB, AZ, BC, CA, CO, ID, MB, MT, NF, NM, NT, NV, OR, PA, UT, WA, WY, YT
Habitat
Webs found in alpine meadows. (1)
Remarks
This species was generally found in a retreat next to the web in daylight hours while carbonarioides was more often found at the center of the web during the day.
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.
Internet References
Works Cited
1.The Orb-weaving Spiders of Canada and Alaska - The Insects and Arachnids of Canada Part 23
Dondale, C.D., J.H. Redner, P, Paquin and H.W. Levi. 2003. NRC Research Press.