A Tetragnathidae (Plesiometa argyra) 102208

Plesiometa argyra 102208 ventral spiderThe photo on the right was taken by Alison M., an undergraduate student in Katy, Texas. She wrote: "Hello, Jerry. I have another unidentified spider for you. Its web was very intricate, atypical, and very close to the ground. I could only get a ventral photo of it." This spider, in the family Tetragnathidae (the long-jawed orbweavers) is the same size as, and is similar to, another member of this family, the orchard orbweaver (Leucauge venusta). But spiders in the genus Leucauge have a pair of triangular areas at the female venter that are absent in Plesiometa, and the latter's venter is flanked instead with two longitudinal bands, as with Alison's specimen (see Ubick et al, [2005], pg. 232-233 for additional details.) Plesiometa argyra is the best known species in this genus; for years, in fact, the genus was thought to contain but this one species. Other species have since been discovered in South America.  NEXT PAGE ---- PAGE MENU:  1  *  2  * 

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