The rarely encountered spider genusHexurellaGertsch & Platnick, 1979 includes some of the smallest mygalomorph spiders in the world, with four poorly known taxa from central and southeastern montane Arizona, southern California, and northern Baja California Norte. At time of description the genus was known from fewer than 20 individuals, with sparse natural history information suggesting a vagrant, web-building, litter-dwelling natural history. Here the first published taxonomic and natural history information for this taxon is provided in more than 50 years, working from extensive new geographic sampling, consideration of male and female morphology, and sequence capture-based nuclear phylogenomics and mitogenomics. Several new species are easily diagnosed based on distinctive male morphologies, while a complex of populations from central and northern Arizona required an integrative combination of genomic algorithmic species delimitation analyses and morphological study. Four new species are described, includingH. ephedrasp. nov.,H. uwiiltilsp. nov.,H. xericasp. nov., andH. zassp. nov.Females ofH. encinaGertsch & Platnick, 1979 are also described for the first time. It is predicted that additional new species will ultimately be found in the mountains of central and northwestern Arizona, northern mainland Mexico, and the Mojave Desert of California.
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Microcaddisflies (Trichoptera, Hydroptilidae) of the Baja California peninsula, Mexico: checklist and description of two new species
Two new species of Hydroptilidae,Neotrichia bajasp. nov.andOchrotrichia rivasisp. nov., are described from the Baja California peninsula, Mexico. New country records for Mexico of four species are provided:Leucotrichia muticaFlint, 1991,Neotrichia kimiKeth, 2015,Neotrichia sepulgaHarris, 1991, andOchrotrichia luciaDenning & Blickle, 1972. In this study, 16 Hydroptilidae species were recorded in the peninsula, and nine were new records for the Baja California and Baja California Sur states. This study represents the first microcaddisfly (Hydroptilidae) diversity assessment of the Baja California peninsula.
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- Award ID(s):
- 2143776
- PAR ID:
- 10666288
- Publisher / Repository:
- Proceedings of the 18th International Symposium on Trichoptera
- Date Published:
- Journal Name:
- ZooKeys
- Volume:
- 1263
- ISSN:
- 1313-2989
- Page Range / eLocation ID:
- 379 to 388
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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