A new genus of Australian orb-weaving spider with extreme sexual size dimorphism (Araneae, Araneidae)
Open Access
- 5 May 2022
- journal article
- research article
- Published by Pensoft Publishers in Zoosystematics and Evolution
- Vol. 98 (1), 137-149
- https://doi.org/10.3897/zse.98.82649
Abstract
The new Australian orb-weaving spider genus Mangrovia in the family Araneidae Clerck, 1757 is described. It is characterised by extreme sexual size-dimorphism (eSSD) with females (total length 8???10 mm) ca. 3 to 5 times larger than males (2.5???3 mm). Whilst Mangrovia shares with the informal Australian ???backobourkiine??? clade a single seta on the male pedipalp patella, the genus is probably more closely related to the ???zealaraneines??? or associated genera. In addition to eSSD and the single patellar spine, the genus is characterised by a distinct subterminal embolus branch in males. The new genus includes two species: the type species Mangrovia albida (L. Koch, 1871) comb. nov. (= Epeira fastidiosa Keyserling, 1887, new syn.) from Queensland and Mangrovia occidentalis sp. nov. from Western Australia. Both species are apparently coastal and occur in mangroves, but also in riparian woodland. Spiders were found resting in rolled-up leaves adjacent to their orb-web.Keywords
Funding Information
- Murdoch University
This publication has 22 references indexed in Scilit:
- Securing Paternity by Mutilating Female Genitalia in SpidersCurrent Biology, 2015
- Systematic review of a new orb-weaving spider genus (Araneae: Araneidae), with special reference to the Australasian-Pacific and South-East Asian faunaZoological Journal of the Linnean Society, 2012
- Lariniophora, a new monotypic orb-weaving spider genus from Australia (Araneae: Araneidae: Araneinae)Records of the Western Australian Museum, 2011
- CLIMBING TO REACH FEMALES: ROMEO SHOULD BE SMALLEvolution, 2002
- A phylogenetic analysis of the orb-weaving spider family Araneidae (Arachnida, Araneae)Zoological Journal of the Linnean Society, 1997
- Giant female or dwarf male spiders?Nature, 1997
- SELECTION ON FECUNDITY AND VARIATION IN THE DEGREE OF SEXUAL SIZE DIMORPHISM AMONG SPIDER SPECIES (CLASS ARANEAE)Evolution, 1995
- Sexual dimorphism and distorted sex ratios in spidersNature, 1992
- American Neoscona and Corrections to Previous Revisions of Neotropical Orb-Weavers (Araneae: Araneidae)Psyche: A Journal of Entomology, 1992
- Protandry and Moulting to Maturity in the Spider Pityohyphantes phrygianusOikos, 1990