Octonoba
Opell, 1979
Species Guides
1Octonoba is a of cribellate orb-weaving spiders in the Uloboridae, established in 1979. The genus comprises 33 described distributed across East Asia, with highest diversity in China, Japan, and Taiwan. Members are characterized by a length exceeding 1.4 mm, distinguishing them from the related genus Purumitra. One species, O. sinensis, has been introduced to the United States.
Pronunciation
How to pronounce Octonoba: /ˌɑktəˈnoʊbə/
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Identification
Distinguished from the related Purumitra by larger body size: length greater than 1.4 mm versus less than 1 mm in Purumitra. Both genera share a large concave and conspicuous hematodocha. -level identification requires examination of genitalic structures.
Distribution
East Asia: China (including Hainan), Japan (including Ryukyu Islands and Okinawa), Taiwan, Korea, Russia (Far East), Caucasus, and Iran. Introduced of O. sinensis established in the United States.
Human Relevance
O. sinensis has been introduced to the United States, representing a documented case of human-mediated range expansion. No other significant human interactions documented.
Similar Taxa
- PurumitraShares large concave and conspicuous hematodocha, but Purumitra are smaller with length usually less than 1 mm versus greater than 1.4 mm in Octonoba.