image_caption =
image_width = 250px
regnum = Animalia
phylum = Arthropoda
classis = Arachnida
ordo = Opiliones
subordo = Laniatores
infraordo = Grassatores
superfamilia = Zalmoxoidea
familia = Guasiniidae
familia_authority = González-Sponga, 1997
subdivision_ranks = Genera
subdivision = See text for list.
synonyms =Guasinidae

The Guasiniidae are a family of harvestman with three described species from South America.

It is, together with the Fissiphalliidae and the Ogoveidae, one of the least diverse harvestman families.

The family is probably closely related to the Zalmoxidae and Fissiphalliidae.

All described species in this family are completely eyeless (anophthalmic).

González-Sponga found the two first species inside bark under litter, "G. persephone" was also found inside soil, in an inundation-forest of black-water (igapó) at Tarumã-Mirim, near the mouth of Rio Negro, 20km upstream from Manaus. The region is flooded for almost half a year.

Current research suggests that the two described genera should be merged into one.


* "Guaiquinimia" González-Sponga, 1997:* "Guaiquinimia longipes" González-Sponga, 1997 (Venezuela)
* "Guasinia" González-Sponga, 1997:* "Guasinia delgadoi" González-Sponga, 1997 (Venezuela):* "Guasinia persephone" Pinto-da-Rocha & Kury, 2003 (Brazil)


*'s Biology Catalog: [ Guasiniidae]
* (2003): Third species of Guasiniidae (Opiliones, Laniatores) with comments on familial relationships. "Journal of Arachnology" 31(3): 394-399. [ PDF]

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