31 research outputs found
New family of myrmecophilic spiders.
Get PDF24 pages : illustrations (some color), maps (some color) ; 26 cm.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
Revision and phylogeny of the genus Monapia with notes on other Amaurobioidinae (Araneae, Anyphaenidae)
No full textVolume: 66Start Page: 71End Page: 10
Revision del genero Liparotoma Simon, 1884 (Araneae, Anyphaenidae)
No full textVolume: 64Start Page: 195End Page: 20
RESPIRATORY SYSTEM MORPHOLOGY AND THE PHYLOGENY OF HAPLOGYNE SPIDERS (ARANEAE, ARANEOMORPHAE)
No full textVolume: 28Start Page: 149End Page: 15
The spider subfamily Amaurobioidinae (Araneae, Anyphaenidae) : a phylogenetic revision at the generic level. Bulletin of the AMNH ; no. 277
No full textNew Species and Cladistic Reanalysis of the Spider Genus Monapia (Araneae, Anyphaenidae, Amaurobioidinae)
No full textVolume: 27Start Page: 415End Page: 43
The morphology and phylogeny of dionychan spiders (Araneae, Araneomorphae). (Bulletin of the American Museum of Natural History, no. 390)
No full textThe spider subfamily Amaurobioidinae (Araneae, Anyphaenidae) : a phylogenetic revision at the generic level. Bulletin of the AMNH ; no. 277
No full textThe morphology and phylogeny of dionychan spiders (Araneae, Araneomorphae). (Bulletin of the American Museum of Natural History, no. 390)
No full textNuevas especies de la familia Mecysmaucheniidae (Araneae) de Chile y Argentina
No full textSe describen dos nuevas especies de la familia Mecysmaucheniidae: Mecysmauchenius platnicki, sp. nov., de Malleco, Chile y Mecysmauchenioides quetrihue, sp. nov., de Neuquén, Argentina, constituyendo esta última la segunda especie conocida de su género
