Theridula emertoni

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Theridula emertoni
Theridula emertoni Kaldari 01.jpg
female Theridula emertoni
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Arachnida
Order: Araneae
Superfamily: Araneoidea
Family: Theridiidae
Genus: Theridula
Species: T. emertoni
Binomial name
Theridula emertoni
Levi, 1954

Theridula sphaerula
Theridula opelenta

Theridula emertoni is a species of tangle web spider commonly found in the United States and Canada.[1] Prior to its formal description in 1954, specimens of T. emertoni were often classified as T. opelenta, a species with whom its range overlaps.[2] The species can be reliably distinguished from T. opulenta by the epigyne in females or by the pedipalp in males.[2]

T. emertoni from Virginia

Adult females are between 1.7 and 2.8 mm in length. Adult males are between 1.6 and 2.3 mm in length.[2][3]


  1. ^ Levi, Herbert W. (1966). "American Spider Genera Theridula and Paratheridula (Araneae: Theridiidae)". Psyche. 73 (2): 123–130. doi:10.1155/1966/12793. 
  2. ^ a b c Levi, Herbert W. (October 1954). "The Spider Genus Theridula in North and Central America and the West Indies (Araneae: Theridiidae)". Transcriptions of American Microscopical Society. 73 (4): 331–343. JSTOR 3223578. doi:10.2307/3223578. 
  3. ^ Howell, W. Mike; Ronald L. Jenkins (2004). Spiders of the Eastern United States: A Photographic Guide. Pearson Education. pp. 113–114. 

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