Lamyctes tristani ( Pocock, 1893 )

Popovici, George & Edgecombe, Gregory D., 2025, Centipedes (Myriapoda, Chilopoda) of Aldabra Atoll (Seychelles), ZooKeys 1228, pp. 225-273 : 225-273

publication ID	https://doi.org/10.3897/zookeys.1228.143007
publication LSID	lsid:zoobank.org:pub:3A5C895C-ACF6-4E44-BD53-6296E1F9EAB1
DOI	https://doi.org/10.5281/zenodo.14908117
persistent identifier	https://treatment.plazi.org/id/18A70C29-CAA0-5FD8-88E2-15C1A621B2A3
treatment provided by	ZooKeys by Pensoft (2025-02-21 18:25:29, last updated 2025-02-21 23:06:53)
scientific name	Lamyctes tristani ( Pocock, 1893 )
status

Treatment

Lamyctes tristani ( Pocock, 1893) View in CoL

Fig. 1 View Figure 1

Examined material.

41 specimens: NHMUK 015991449 , 1 ♀, Cinq Cases , 16. 03. 1974 ; NHMUK 015991450 , 2 ♀, Malabar , 14. 02. 1975 ; NHMUK 015991451 1 ♀, Picard , 28. 02. 1975 ; NHMUK 015991452 , 3 ♀, 1 juvenile, Cinq Cases B. F. , 20. 03. 1974 ; NHMUK 015991453 , 2 ♀, Picard , 23. 02. 1974 ; NHMUK 015991454 , 2 ♀, Cinq Cases , 24. 03. 1974 ; NHMUK 015991458 , 3 ♀, Malabar , 08. 06. 1974 ; NHMUK 015991455 , 1 ♀, 1 juvenile, Aldabra , 30. 01. 1975 ; NHMUK 015991456 , 21 ♀, Picard , Summer 1975, leg. V. W. Spaull ; NHMUK 015991457 , 2 ♀, 1 juvenile, Ochna litter, Cinq Cases B. F. , 23. 03. 1974 .

Remarks.

The 38 specimens from the Aldabra Atoll (from Cinq Cases, Malabar, and Picard) for which sex can reliably be determined are all females, such that the population is parthenogenetic. They are likely conspecific with L. tristani as described from the Chagos Archipelago ( Popovici et al. 2024), sharing the distinctly reduced spinous process on the tibia of leg pair 12, often taking the form of a rounded bump (Fig. 1 C View Figure 1 ). The stability of this character is however uncertain as specimens from localities in the Aldabra Atoll exhibit conspicuous variation in the shape of the process (Fig. 1 D View Figure 1 , Table 1 View Table 1 ). Additional similarities between these two populations include the morphology of the forcipular coxosternite (Fig. 1 A, B View Figure 1 ), the number of antennal articles, and the number and shape of the spurs on the female gonopods (Fig. 1 E View Figure 1 ). Variability in the characters of antennal article number, number, and distribution of coxal pores and shape of the distal spinous process on the tibia of leg pair 12 are listed in Table 1 View Table 1 and compared with putatively conspecific individuals from the Chagos Archipelago, excluding anamorphic stages.

References

Pocock RI (1893) Report upon the Myriopoda of the ' Challenger' Expedition, with remarks upon the fauna of Bermuda. Annals and Magazine of Natural History 6 (6): 121-142. https://doi.org/10.1080/00222939308677479

Popovici G, Edgecombe GD, Hall DW (2024) New Chilopoda from the Chagos Archipelago. Journal of Natural History 58 (41–44): 1885–1915. https://doi.org/10.1080/00222933.2024.2395903

Figures

Figure 1. Lamyctes tristani (Pocock, 1893) A, B, D NHMUK 015991452 A forcipular segment, ventral view B anterior margin of forcipular coxosternite, ventral view C NHMUK 015991458, distal end of tibia of leg pair 12, lateral view D distal end of tibia of leg pair 12, lateral view E NHMUK 015991456, Female gonopods, ventral view.