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Menemerus nigli

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Menemerus nigli
male M. nigli on a ruin in Thailand
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Salticidae
Subfamily: Salticinae
Genus: Menemerus
Species:
M. nigli
Binomial name
Menemerus nigli
Wesołowska & Freudenschuss, 2012

Menemerus nigli is a species of jumping spider in the genus Menemerus that originates in Asia. The male was identified in 2012 by Wanda Wesołowska and Mario Freudenschuss, and the female by Pir Asmat Ali, Wayne Maddison. Muhammad Zahid and Abida Buttin in 2018. The spider is medium-sized, typically 4.89 millimetres (0.193 in) in length, with a dark brown carapace and grey-brown abdomen that has a distinctive cream and white pattern created by small hairs. It was originally found in India, Pakistan and Thailand but was also found to have been introduced into Latin America, the first specimens being identified in Brazil in 2020. It seems to thrive amongst the sunlit stucco walls that are common in cities across the region. Menemerus nigli is used as an example of the ability of species that adapt to human habitation to expand their ecological niche and become global species.

Taxonomy

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M. nigli from Cambodia

First described by Wanda Wesołowska and Mario Freudenschuss in 2012, the spider was allocated to the genus Menemerus.[1] It is one of over 500 species identified by the Polish arachnologist over her career.[2] The genus was first described in 1868 by Eugène Simon and contains over 60 species.[3] The genus name derives from two Greek words, meaning certainly and diurnal.[4] The genus shares some characteristics, including having narrow, oval, fixed embolus, with the genera Hypaeus and Pellenes.[5] Genetic analysis has shown that the genus is related to the genera Helvetia and Phintella and is classified in the tribe Chrysillini.[6][7] The species is dedicated to Johannes Nigl, a mentor and friend of Freudenschuss.[1]

Description

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Views and details of male (5–8) and female (9–15) Menemerus nigli

Menemerus nigli is a medium-sized spider, with total length of approximately 4.89 millimetres (0.193 in).[8] Initially, only the male of the species was identified, with the first description of the female being by Pir Asmat Ali, Wayne Maddison. Muhammad Zahid and Abida Buttin in 2018.[9] The male is slightly smaller than the female. The female has a carapace which measures 2.82 millimetres (0.111 in), 0.1 millimetres (0.0039 in) longer than the male, and an abdomen 1.04 millimetres (0.041 in) longer at 3.76 millimetres (0.148 in).[10] The width of the carapace for both is 2.06 millimetres (0.081 in), while the abdomen measures between 3.06 and 3.16 millimetres (0.120 and 0.124 in) wide.[10] The carapace is dark brown and oval, with dense white hairs making it look as if the spider has a streak of white across it. The abdomen is smaller and narrower than the carapace, and a brownish-grey.[1] The abdomen has cream markings and white hairs. These give a distinctive pattern.[11]

The male is similar to two other species in the same genus, Menemerus pilosus and Menemerus zimbabwensis, both found in Africa, differing in the abdominal pattern.[1] The embolus is larger than other species in the genus.[10] The female is distinguished from other Menemerus species by the distinctive folds that extend from the broad forward-facing copulatory duct, as shown in Figure 11.[11] The epigyne has a wide opening.[12] The pedipalps are brown, but those on the female are lighter in colour.[12] The juvenile male is generally darker in appearance and can be identified by its club-shaped cymbium at the end of its pedipalp.[13] The adult male has white hairs on the side of the chelicerae.[12]

Distribution and habitat

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Menemerus nigli has been found in India, Pakistan and Thailand.[9] The spider was first identified in western Pakistan by Wanda Wesołowska and Mario Freudenschuss. This was the second example of the genus to be identified in the country.[14] A specimen in West Bengal, India, was confirmed as being from the same species by comparing the DNA barcode in 2017.[15] It was the fifth species of the genus found in the country.[16] The spider was also identified in Thailand in 2020.[17]

The species has a wide range, extending over 4,500 kilometres (2,800 mi).[18] Many of the images of Menemerus fulvus posted online may depict Menemerus nigli and so the species's distribution may be over a wider area of south and south-east Asia than has been confirmed.[3] The spider has also successfully established itself in Latin America. In 2020, Rafael M. Mariante and David E. Hill identified examples of the species from three sites in Rio de Janeiro, Brazil.[19]

The spider was first found under stones.[20] It was also subsequently found to live on stoney ground, on indoor walls and on exterior walls.[19] It seems to be comfortable in ruins as well as places of current habitation.[17] However, it seems to particularly thrive on the painted and stuccoed walls that can be found in cities like Rio de Janeiro and others across the region. The evidence that it has found a niche in urban structures supports the view that species that can adapt to habitats created by people may be more successful when introduced to a new and far away habitat.[19]

References

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Citations

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  1. ^ a b c d Wesołowska & Freudenschuss 2012, p. 452.
  2. ^ Wiśniewski 2020, p. 6.
  3. ^ a b Mariante & Hill 2020, p. 1.
  4. ^ Fernández-Rubio 2013, p. 128.
  5. ^ Maddison 2015, p. 233.
  6. ^ Maddison & Hedin 2003, p. 541.
  7. ^ Maddison 2015, p. 231.
  8. ^ Chatterjee et al. 2017, p. 109.
  9. ^ a b World Spider Catalog (2021). "Menemerus nigli Wesolowska & Freudenschuss, 2012". World Spider Catalog. 22.0. Bern: Natural History Museum. Retrieved 4 July 2021.
  10. ^ a b c Ali et al. 2018, p. 6.
  11. ^ a b Ali et al. 2018, p. 8.
  12. ^ a b c Mariante & Hill 2020, p. 9.
  13. ^ Mariante & Hill 2020, p. 8.
  14. ^ Wesołowska & Freudenschuss 2012, p. 453.
  15. ^ Abhijith, Sheeba & Sudhikumar 2021, p. 53.
  16. ^ Tripathi et al. 2021, p. 1.
  17. ^ a b Seyfulina, Azarkina & Kartsev 2020, p. 90.
  18. ^ Seyfulina, Azarkina & Kartsev 2020, p. 91.
  19. ^ a b c Mariante & Hill 2020, p. 15.
  20. ^ Wesołowska & Freudenschuss 2012, p. 449.

Bibliography

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  • Abhijith, R. S.; Sheeba, P.; Sudhikumar, A. V. (2021). "Current status of molecular taxonomy of spiders in India". In Indu, M. S.; Sebastian, Honey; Joseph, Petrisia (eds.). Modern Trends in Biological Research. Thrissur: Vimala College Publications. pp. 51–55. ISBN 978-81-7255-134-6.
  • Ali, Pir Asmat; Maddison, Wayne P.; Zahid, Muhammad; Butt, Abida (2018). "New chrysilline and aelurilline jumping spiders from Pakistan (Araneae, Salticidae)". ZooKeys (783): 1–15. doi:10.3897/zookeys.783.21985. PMC 6160842. PMID 30275723.
  • Chatterjee, Sumantika; Caleb, John TD; Tyagi, Kaomud; Kundu, Shantanu; Kumar, Vikas (2017). "First report of Menemerus nigli (Araneae: Salticidae) from India". Halteres. 8: 109–111. doi:10.5281/zenodo.1133147.
  • Fernández-Rubio, Fidel (2013). "La etimología de los nombres de las arañas (Araneae)" [The etymology of the names of spiders (Araneae)]. Revista ibérica de Aracnología (in Spanish) (22): 125–130. ISSN 1576-9518.
  • Maddison, Wayne P.; Hedin, Marshal C. (2003). "Jumping spider phylogeny (Araneae: Salticidae)". Invertebrate Systematics. 17 (4): 529–549. doi:10.1071/IS02044.
  • Maddison, Wayne P. (2015). "A phylogenetic classification of jumping spiders (Araneae: Salticidae)". The Journal of Arachnology. 43 (3): 231–292. doi:10.1636/arac-43-03-231-292. S2CID 85680279.
  • Mariante, Rafael M.; Hill, David E. (2020). "First report of the Asian jumping spider Menemerus nigli (Araneae: Salticidae: Chrysillini) in Brazil". Peckhamia. 205 (1): 1–21. doi:10.5281/zenodo.3875200.
  • Seyfulina, R. R.; Azarkina, G. N.; Kartsev, V. M. (2020). "A contribution to the knowledge of jumping spiders from Thailand (Aranei: Salticidae)". Arthropoda Selecta. 29 (1): 87–96. doi:10.15298/arthsel.29.1.07. S2CID 214754657.
  • Tripathi, Rishikesh; Jangid, Ashish Kumar; Siliwal, Manju; Dutta, Sutirtha; Sudhikumar., Ambalaparambil Vasu (2021). "First record of Menemerus marginatus (Kroneberg, 1875) (Araneae: Salticidae: Chrysillini) from India". Peckhamia. 231: 1–7.
  • Wesołowska, Wanda; Freudenschuss, Mario (2012). "A new species of Menemerus from Pakistan (Araneae: Salticidae)". Genus. 23 (3): 449–453.
  • Wiśniewski, Konrad (2020). "Over 40 years with jumping spiders: on the 70th birthday of Wanda Wesołowska". Zootaxa. 4899 (1): 5–14. doi:10.11646/zootaxa.4899.1.3. PMID 33756825. S2CID 232337200.
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