Mamoea grandiosa is a species in the spider family Desidae that is endemic to New Zealand and was first described by Ray Forster and Cecil Wilton in 1973.[1][2] The holotype specimen was collected by Beverley Holloway at Solomon Island, off Stewart Island, during the 1955 Dominion Museum expedition.[3]

Mamoea grandiosa

Not Threatened (NZ TCS)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Desidae
Genus: Mamoea
Species:
M. grandiosa
Binomial name
Mamoea grandiosa
Forster & Wilton, 1973[1]

Taxonomy

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Mamoea grandiosa is a spider species described by Ray Forster and Cecil Wilton in 1973.[2] It was originally placed in the family Amphinectidae, but a large phylogenetic study by Wheeler et al. transferred the genus Mamoea to Desidae.[4] The type specimen is held at Te Papa.[2][3]

Description

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The carapace and chelicerae of Mamoea grandiosa are bright red brown, while the legs and sternum are orange brown. The abdomen has a broad grey band down the mid-dorsal (upper) surface with seven pairs of lateral branches on posterior (rear) half. The ventral surface of the abdomen is cream with a few scattered brown patches. The body length of both males and females is given as approximately 12 mm.[2]

Forster and Wilton not formally present a diagnosis for M. grandiosa but did note the distinctiveness of the female epigynum. Figures of the male palp are also implicitly diagnostic.[2]

Distribution

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The type locality for Mamoea grandiosa is Solomon Island / Rerewhakaupoko, south-west of Stewart Island / Rakiura. The holotype specimen was collected by Beverley Holloway during the 1955 Dominion Museum expedition.[3] It is also known from Stewart Island and the southern South Island of New Zealand.[2]

Conservation status

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Mamoea grandiosa has been assessed under the New Zealand Threat Classification System and categorised as Not Threatened (NT).[5]

References

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  1. ^ a b "Mamoea grandiosa Forster & Wilton, 1973". biotanz.landcareresearch.co.nz. Retrieved 2024-04-23.
  2. ^ a b c d e f Forster, R. R.; Wilton, C. L. (30 September 1973). "The Spiders of New Zealand Part IV: Agelenidae, Stiphidiidae, Amphinectidae, Amaurobiidae, Neolanidae, Ctenidae, Psechridae" (PDF). Otago Museum bulletin. 4: 210–212. ISSN 0474-859X. Wikidata Q113167424. Archived from the original (PDF) on 23 April 2024.
  3. ^ a b c "Mamoea grandiosa Wilton & Forster, 1973". collections.tepapa.govt.nz. Retrieved 2024-04-23.
  4. ^ Wheeler, Ward C.; Coddington, Jonathan A.; Crowley, Louise M.; Dimitrov, Dimitar; Goloboff, Pablo A.; Griswold, Charles E.; Hormiga, Gustavo; Prendini, Lorenzo; Ramírez, Martín J.; Sierwald, Petra; Almeida-Silva, Lina; Alvarez-Padilla, Fernando; Arnedo, Miquel A.; Benavides Silva, Ligia R.; Benjamin, Suresh P. (December 2017). "The spider tree of life: phylogeny of Araneae based on target-gene analyses from an extensive taxon sampling". Cladistics. 33 (6): 574–616. doi:10.1111/cla.12182. ISSN 0748-3007. PMID 34724759.
  5. ^ Sirvid, P. J.; Vink, C. J.; Fitzgerald, B. M.; Wakelin, M. D.; Rolfe, J.; Michel, P. (2020-01-01). "Conservation status of New Zealand Araneae (spiders), 2020". New Zealand Threat Classification Series. 34: 1–37.