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Family Phalangiidae

Family Phalangiidae - Odiellus pictus Harvestman - Leptobunus parvulus Mitopus morio (aedeagus) - Mitopus morio - male Harvestman - Phalangium opilio Harvestman - Phalangium opilio - female
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Opiliones (Harvestmen)
Suborder Eupnoi
Superfamily Phalangioidea
Family Phalangiidae
Other Common Names
daddy-long-legs/daddy-longlegs, harvest spiders, shepherd spiders, phalangids, opilionids
Adult males with a "bent penes" genital morphology

At the end of each pedipalp there is a small, smooth (vs. toothed) claw on the tarsus. The dorsal surface of the body tends to be ornamented with small spikes.
Widespread throughout the United States and Canada. Most phalangiid genera from US + Canada are non-native

Native genera = Leptobunus & Liopilio in the west, Odiellus in the east
Print References
Cokendolpher, J.C., and V.F. Lee. 1993. Catalogue of the Cyphopalpatores and bibliography of the harvestmen (Arachnida, Opiliones) of Greenland, Canada, U.S.A., and Mexico. Vintage Press: Lubbock, TX, USA. (online PDF)