Namea dahmsi Raven, 1984

Rix, Michael G., Wilson, Jeremy D. & Harvey, Mark S., 2020, The open-holed trapdoor spiders (Mygalomorphae: Anamidae: Namea) of Australia’s D’Aguilar Range: revealing an unexpected subtropical hotspot of rainforest diversity, Zootaxa 4861 (1), pp. 71-91: 84-85

publication ID

https://doi.org/10.11646/zootaxa.4861.1.5

publication LSID

lsid:zoobank.org:pub:44321429-80FA-45AC-90D6-E3E13C961BFC

DOI

http://doi.org/10.5281/zenodo.4414554

persistent identifier

http://treatment.plazi.org/id/BA1BE531-FFA3-C40D-FF21-FB28BD1BFE12

treatment provided by

Plazi

scientific name

Namea dahmsi Raven, 1984
status

 

Namea dahmsi Raven, 1984  

( Figs 7, 11 View FIGURES 4–12 , 13 View FIGURE 13 , 21 View FIGURES 14–21 a–c)

Namea dahmsi Raven, 1984: 24   , figs 17, 20, 40, 50, 62, 90, 99, 110. Rix et al., 2020: 707 View Cited Treatment , figs 2, 3, 81–86, 90–102.

Type material. AUSTRALIA: Queensland: male holotype, Calamvale, Brisbane , February 1978, E. Dahms ( QMB S800 View Materials )   . Paratypes: 1 female (allotype), same data as holotype except March 1973 ( QMB S801 View Materials )   ; 1 male, Mount Nebo , 14 May 1980, G. Snell ( QMB S804 View Materials )   ; 1 male, same data except 23 January 1979, B. Barbey ( QMB S803 View Materials )   .

Select material examined. Australia: Queensland: 1 female, Clear Mountain Conservation Park, Clear Mountain, off Clear Mountain Road, 27°18’04”S, 152°52’44”E, hand collected from burrow, open forest, 218 m, 6 February 2019, M. Rix, J. Wilson ( QMB S111381 View Materials DNA) GoogleMaps   ; 1 male, Clear Mountain, 20 km NW. of central Brisbane , 22 January 2009, D. Brown ( QMB S88018 View Materials )   ; 1 male, Enoggera Reservoir , site 3, 27°27’S, 152°55’E, pitfall trap, rainforest, 100 m, 27 January–15 March 2000, G. Monteith, J. Holt ( QMB S63050 View Materials ) GoogleMaps   ; 1 female, Mount Elliot Road, E. of Flinders Peak Conservation Park , 27°49’21”S, 152°50’32”E, hand collected from burrow, riparian creek line, 142 m, 15 May 2019, M. Rix, J. Wilson ( QMB S111481 View Materials DNA) GoogleMaps   .

Diagnosis. Males of Namea dahmsi   can be distinguished from those of all other described congeners except N. callemonda Raven, 1984   by the morphology of the embolus, which is short and positioned terminally on the palpal bulb ( Fig. 21b View FIGURES 14–21 ; see also Rix et al. 2020, figs 100–102). Males can be further distinguished from those of N. callemonda   by the much shorter tibial macroseta v1 ( Fig. 21a View FIGURES 14–21 ; cf. Rix et al. 2020, fig. 160), and by the presence of multiple proximal and/or medial macrosetae on the retroventral margin of the palpal tibia ( Fig. 21b View FIGURES 14–21 ; cf. Rix et al. 2020, figs 161, 162).

Females are similar to those of N. callemonda   and N. salanitri   in having short receptacula ( Fig. 21c View FIGURES 14–21 ), but can be distinguished by the inwardly-directed spermathecae ( Fig. 21c View FIGURES 14–21 ; cf. Fig. 20c View FIGURES 14–21 ; see also Raven 1984, fig. 99) and the absence of epigastric lobes ( Fig. 21c View FIGURES 14–21 ; cf. Fig. 20c View FIGURES 14–21 ).

Distribution. Namea dahmsi   is a widespread species in south-eastern Queensland, where it has been recorded from open forest and dry rainforest habitats, in both lowland and upland areas ( Rix et al. 2020). On the D’Aguilar Range it is known from Mount Nebo ( Fig. 2 View FIGURES 1–3 ) and Enoggera Reservoir, and has also been collected nearby at Clear Mountain.

Remarks. This species is unusual in being one of the few Namea   species recorded from more open dry sclerophyll forest, although it is also known from dry rainforest and riparian habitats, and is generally rare and sparsely distributed throughout its range. The spiders are large and strongly built, with females and juveniles characterised by a dark body colouration, reflective gold carapace setae, and honey-red legs ( Fig. 7 View FIGURES 4–12 ). Males appear to be active throughout the year.

QMB

Queensland Museum, Brisbane

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Nemesiidae

Genus

Namea

Loc

Namea dahmsi Raven, 1984

Rix, Michael G., Wilson, Jeremy D. & Harvey, Mark S. 2020
2020
Loc

Namea dahmsi

Rix, M. G. & Wilson, J. D. & Harvey, M. S. 2020: 707
Raven, R. J. 1984: 24
1984