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Myrmecicultoridae, a new family of myrmecophilic spiders from the Chihuahuan Desert (Araneae, Entelegynae). (American Museum novitates, no. 3930)

Show simple item record Ramírez, Martín J. Grismado, Cristian J. Ubick, Darrell. Ovcharenko, V. I. Cushing, Paula Elizabeth, 1964- Platnick, Norman I. Wheeler, Ward. Prendini, Lorenzo. Crowley, Louise M. Horner, Norman V. 2019-06-25T20:56:08Z 2019-06-25T20:56:08Z 2019-06-26
dc.description 24 pages : illustrations (some color), maps (some color) ; 26 cm. en_US
dc.description.abstract The new genus and species Myrmecicultor chihuahuensis Ramírez, Grismado, and Ubick is described and proposed as the type of the new family, Myrmecicultoridae Ramírez, Grismado, and Ubick. The species is ecribellate, with entelegyne genitalia, two tarsal claws, without claw tufts, and the males have a retrolateral palpal tibial apophysis. Some morphological characters suggest a possible relationship with Zodariidae or Prodidomidae, but the phylogenetic analysis of six markers from the mitochondrial (12S rDNA, 16S rDNA, cytochrome oxidase subunit I) and nuclear (histone H3, 18S rDNA, 28S rDNA) genomes indicate that M. chihuahuensis is a separate lineage emerging near the base of the Dionycha and the Oval Calamistrum clade. The same result is obtained when the molecular data are combined with a dataset of morphological characters. Specimens of M. chihuahuensis were found associated with three species of harvester ants, Pogonomyrmex rugosus, Novomessor albisetosis, and Novomessor cockerelli, and were collected in pitfall traps when the ants are most active. The known distribution spans the Big Bend region of Texas (Presidio, Brewster, and Hudspeth counties), to Coahuila (Cuatro Ciénegas) and Aguascalientes (Tepezalá), Mexico. en_US
dc.language.iso en_US en_US
dc.publisher American Museum of Natural History. en_US
dc.relation.ispartofseries American Museum novitates;no.3930.
dc.subject Myrmecicultor chihuahuensis. en_US
dc.subject Myrmecicultoridae. en_US
dc.subject Spiders. en_US
dc.subject Harvester ants. en_US
dc.subject Commensalism. en_US
dc.subject Chihuahuan Desert. en_US
dc.subject Big Bend Region (Tex.) en_US
dc.subject Texas. en_US
dc.subject Mexico. en_US
dc.title Myrmecicultoridae, a new family of myrmecophilic spiders from the Chihuahuan Desert (Araneae, Entelegynae). (American Museum novitates, no. 3930) en_US
dc.title.alternative New family of myrmecophilic spiders. en_US

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  • American Museum Novitates
    Novitates (Latin for "new acquaintances"), published continuously and numbered consecutively since 1921, are short papers that contain descriptions of new forms and reports in zoology, paleontology, and geology. New numbers are published at irregular intervals.

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