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Species Enoplognatha ovata

Representative Images

Spider - Enoplognatha ovata - male Enoplognatha - Enoplognatha ovata - female Spider - Enoplognatha ovata Spider - Enoplognatha ovata Cobweb Weaver - Enoplognatha ovata - male Spider on a dead looper - Enoplognatha ovata Spider ID please - Enoplognatha ovata spider - Enoplognatha ovata

Classification

Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynae)
Family Theridiidae (Cobweb Spiders)
Genus Enoplognatha
Species ovata (Enoplognatha ovata)

Identification

Enoplognatha ovata has several color morphs. This one is form lineata, with several pairs of dorsolateral spots, but no red stripes.


Form redimita has two dorsolateral red stripes running the length of the abdominal dorsum.


Form ovata, the least common morph, has a solid red band running the length of the abdominal dorsum (upper surface of the abdomen).


Source: David Wise & Paul Reillo, Frequencies of Color Morphs in Four Populations of Enoplognatha ovata in Eastern North America, 1984. ~ Andrew Reding

Male:


Juvenile

Range

Northeastern states and adjacent Canada; Pacific Coast states and British Columbia. (1)

Life Cycle

Different individuals can have white or blue egg sacs (I think there's another color possible too). The egg sac will normally be in a leaf nest. The spiderlings overwinter in leaf litter. ~ Rod Crawford.

Remarks

Not-native

See Also

Theridion have the bottom eye row in a slight downward curve, with a gap between the rows, while in Enoplognatha the four bottom eyes lie almost straight across with hardly any space between the rows:

      Theridion           Enoplognatha


Also in E. ovata the carapace has a dark border line. That line is often missing in Theridion species.

Internet References

~ psyche.entclub.org - PDF article by David Wise & Paul Reillo, Frequencies of Color Morphs in Four Populations of Enoplognatha ovata in Eastern North America, 1984.

Works Cited

1.How to Know the Spiders
B. J. Kaston. 1978. WCB/McGraw-Hill.
Contributed by john and jane balaban on 31 July, 2005 - 4:37pm
Additional contributions by Beatriz Moisset, Lynette Elliott, Kevin Hall
Last updated 15 June, 2013 - 6:57pm

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