We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
New species reveal unexpected interspecific microhabitat diversity in the genus Uthina Simon, 1893 (Araneae : Pholcidae).
- Authors
Huber, Bernhard A.; Caspar, Kai R.; Eberle, Jonas
- Abstract
Representatives of the Southeast Asian pholcid spider genus Uthina Simon, 1893 have been thought to be very homogeneous in their ecology and morphology. The 14 previously known species all inhabit near-ground microhabitats and cave entrances, and range from pale to dark brown in colour. Even their genitalia are partly very similar, with some species pairs being barely distinguishable based on morphological characters. Here we describe three new species from Bali, Java and Sulawesi that represent three further microhabitats and demonstrate considerable ecological and morphological diversity within the genus: U. maya , sp. nov. from Bali is a large dark species on tree trunks; U. hylobatea , sp. nov. from Bali and eastern Java is a pale leaf-dwelling species that exhibits colour dimorphism; and U. mimpi , sp. nov. is a pale troglomorphic species collected in the aphotic zones of two South Sulawesi caves. In addition, we present new data for five previously described species, including ultrastructure, natural history, new records, taxonomic notes and a description of the previously unknown female of Uthina khaosokensis Yao, Li & Jäger, 2014. Molecular data suggest that all previously described species are very closely related to each other (constituting the monophyletic luzonica -group), and that the three new species represent separate clades within the genus. However, the basal trichotomy could not be resolved: U. maya + (U. hylobatea + U. mimpi) + luzonica -group. Spiders in the genus Uthina have been thought to be very homogeneous in their ecology and morphology. Here we describe three new species from Bali, Java, and Sulawesi that demonstrate considerable ecological and morphological diversity within the genus. Molecular data suggest that all previously described species are closely related to each other and that the three new species represent separate clades within the genus.
- Subjects
PHOLCIDAE; COMPETITION (Biology); ECOLOGICAL niche; SPIDER ecology; APHOTIC zone; ANIMAL morphology
- Publication
Invertebrate Systematics, 2019, Vol 33, Issue 1, p181
- ISSN
1445-5226
- Publication type
Article
- DOI
10.1071/IS18002