Anelosimus kohi

Anelosimus kohi is a species of spider in the family Theridiidae. It is found in Singapore and Malaysia.[1] The species is named for Joseph K. H. Koh,[2] an entomologist from Singapore[3] who collected the holotype specimen.

Anelosimus kohi
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Arachnida
Order:
Araneae
Family:
Theridiidae
Genus:
Anelosimus
Species:
A. kohi
Binomial name
Anelosimus kohi
Yoshida, 1993

Description

Males are from 2.40 to 3.40 millimetres (0.094 to 0.134 in) long, while females are 3.70 to 4.40 millimetres (0.146 to 0.173 in) long. There are two coloration patterns found in this species, one uniformly reddish brown abdomen with a dark brown dorsal folium and the other grey abdomen bordered by a bright yellow band and a red dorsal folium.[1] The holotype has the latter coloration pattern.[2]

This species is also noted for a highly variable genitalia, although differences do not appear to vary by collection site or coloration pattern. The continuous range of variation, together with genetic data, has led to all specimens being combined in one species.[1]

Habitat

A. kohi builds basket webs in trees, generally at the tips of the branches. It inhabits trees close to beaches. Nests appear to consist of a single female spider and sub-adult offspring. The spider appears to be sub-social.[1]

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References
  1. Agnarsson, Ingi; Zhang, Jun-Xia. "New species of Anelosimus (Araneae: Theridiidae) from Africa and Southeast Asia, with notes on sociality and color polymorphism" (PDF). Zootaxa. 1147: 1–34. Retrieved 11 March 2012.
  2. Yoshida, Hajime (1993). "Two new species of the genera Anelosimus and Achaearanea (Araneae:Theridiidae) from Singapore and Indonesia". Acta Arachnologica. 42: 7–11. doi:10.2476/asjaa.42.7.
  3. "Joseph K. H. Koh". Raffles Museum of Biodiversity Research. Retrieved 27 March 2012.
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