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Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

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Photos of insects and people from the 2013 gathering in Arizona, July 25-28

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Family Linyphiidae - Sheetweb and Dwarf Spiders

Grammonota pictilis (ventral aspect) - Grammonota pictilis - female Unknown Spider - Pityohyphantes Linyphiinae - Sheetweb Spiders - Neriene radiata spider - male Bowl and Doily Weaver - Frontinella communis - female platform spider - Microlinyphia dana - female Black spider with little white dots - Lepthyphantes Grammonota gigas - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynes )
Family Linyphiidae (Sheetweb and Dwarf Spiders)
Identification
In separating Theridiidae from Linyphiidae (1)
1. Legs
    Theridiidae have first legs usually longest, third legs shortest. Also fourth legs usually with comb macrosetae (indistinct in Dipoena & Euryopis). Legs have no thick setae and no femoral macrosetae.
    Linyphiidae have legs long & thin with macrosetae. (Hairs on males somewhat reduced.) They have long sensory hairs on the first three legs, sometimes on all four legs.

2. Abdomen
    Theridiidae have abdomen usually round, rarely elongate.
    Linyphiidae abdomen usually oval or elongated.
Works Cited
1.Spiders of North America: An Identification Manual
D. Ubick, P. Paquin, P.E. Cushing and V. Roth (eds). 2005. American Arachnological Society.