Namea brisbanensis, 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 : 77

The brisbanensis -complex

The brisbanensis -complex Rix et al., 2020: 694 .

Remarks. The monophyletic brisbanensis -complex of Namea ( Fig. 13 ) includes four previously described species ( N. brisbanensis Raven, 1984 , N. cucurbita Raven, 1984 , N. flavomaculata (Rainbow & Pulleine, 1918) and N. salanitri Raven, 1984 ), two new species described in the current study ( N. gloriosa sp. nov. and N. gowardae sp. nov.), plus numerous undescribed species from south-eastern Queensland and north-eastern New South Wales, where the spiders are largely ubiquitous in rainforest habitats north to at least the Conondale Range ( Rix et al. 2020). Burrows are of the ‘wishbone’ type with a branching second shaft and concealed second entrance, with the main burrow entrance usually in the form of an irregular open hole lined with flocculent white silk ( Fig. 10 ). Four species have been recorded on the D’Aguilar Range, and it is now known that multiple species in the brisbanensis -complex can occur in direct sympatry at many (and possibly most) rainforest sites at which they occur, making the association of females with males in this group particularly challenging in the absence of detailed field work or genetic data ( Rix et al. 2020).

Figures

FIGURE 13. Phylogeny of the genus Namea modified from Rix et al. (2020; fig. 2), inferred from a partitioned Bayesian analysis of that study’s ‘FULL’ dataset (151 taxa, 5,261 bp, 50% majority-rule consensus tree). Clades corresponding to 30 morpho-species OTUs are collapsed for the genus Namea (square brackets denote the number of specimens included in each clade), and nodes have a posterior probability of ≥ 0.98 unless otherwise stated. Seven species recorded from the D’Aguilar Range (south-eastern Queensland) are highlighted in enlarged bold text; note that specimens of an eighth species, N. gloriosa sp. nov., were not sequenced for this study.

FIGURES 4–12. Live habitus images and burrows of Namea from the D’Aguilar Range (south-eastern Queensland). 4–8, Live habitus images: 4, female N. brisbanensis Raven, 1984 from Gold Creek Reserve (note left leg IV missing); 5, paratype female N. gowardae sp. nov. from Mount Glorious; 6, female N. salanitri Raven, 1984 from Mount Mee; 7, female N. dahmsi Raven, 1984 from Clear Mountain; 8, subadult juvenile N. nigritarsus sp. nov. from Mount Glorious. 9–12, Burrow images: 9, burrow of unidentified Namea (N. nigritarsus sp. nov. or N. nebo sp. nov.; not collected) from Mount Nebo, with spider at entrance; 10, burrow of N. gowardae sp. nov. from Mount Glorious, with spider at entrance; 11, burrow of N. dahmsi from Clear Mountain; 12, burrow of N. nigritarsus sp. nov. from Mount Mee. Images 4–8, 10, 11 by M. Rix; 9, 12 by J. Wilson.