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Rhabditidoides humicolus n. sp. associated with arthropods from rotting palm tissue in Florida, USA

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Rhabditidoides humicolus n. sp. is described and illustrated from arthropods associated with decaying tissue from the crown shaft of a living spindle palm, Hyophorbe verschaffeltii, in southern Florida, USA. In addition to its generic character, i.e., the arrangement of male genital papillae, ⟨v1, v2, v3d, CO, v4, (ad, v5, ph, v6), (pd, v7)⟩, the new species is characterised by its small stomatal flaps, a secretory pore-like opening, a pair of deirids, two pairs of post-deirids and small subventral vulval papillae located just anterior to the vulva. Besides those newly found characters, there are only a few typological differences between R. humicolus n. sp. and several previously described species in the genus. However, based on the biological characters, e.g., gonochoristic reproduction, association as dauers with the crane fly, Limonia (Rhipidia) schwarzi (Diptera: Limoniidae), millipedes, an immature cockroach, and staphylinid beetle adults, and distribution in southern Florida, the new species was considered to be different from others in the genus.

Affiliations: 1: Fort Lauderdale Research and Education Center, University of Florida/IFAS 3205 College Avenue, Davie, FL 33314, USA


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