Fig 1.
Phylogeny of the Fijian roosevelti and knowlesi groups and their sister clade.
Redrawn from the larger phylogeny in Economo et al. 2015b [26]. One member of the knowlesi group, P. caldwelli, is not represented due to lack of molecular data.
Fig 2.
Distribution maps for all species revised in this publication.
Type localities are marked in red.
Table 1.
Native Fijian ant species known from only one other Pacific island.
Fig 3.
Shaded surface display volume renderings extracted from 3D-scans with specimens seen in profile.
Pheidole caldwelli: (A) minor worker (CASENT0709600), (B) major worker (CASENT0709599), (C) queen (CASENT0185623). P. kava sp. n.: (D) minor worker (CASENT0183982), (E) major worker (CASENT0185437), (F) queen (CASENT0194645). P. knowlesi: (G) minor worker (CASENT0184016), (H) major worker (CASENT0183992), (I) queen (CASENT0184086). P. ululevu sp. n.: (K) minor worker (CASENT0183250), (L) major worker (CASENT0183915), (M) queen (CASENT0185564). P. vatu: (N) minor worker (CASENT0185991), (O) major worker (CASENT0184486), (P) queen (CASENT0185452). P. wilsoni: (Q) minor worker (CASENT0184378), (R) major worker (CASENT0184311), (S) queen (CASENT0184003).
Table 2.
Specimens used for micro-CT imaging, scan settings and voxel sizes in the resulting scan files.
Table 3.
Overview of 3D pdf files and rotation videos available in the supporting information.
Fig 4.
Standard measurements used in this revision.
HW–head width, HL–head length, SL–scape length, EL–eye length, MDL–mandible length, PNW–pronotum width, PTW–petiole width, PPW–postpetiole width, WL–Weber’s length, PTL–petiole length, PTH–petiole height, PPL–postpetiole length, PPH–postpetiole height, PSL–propodeal spine length, MFL–metafemur length, MTL–metatibia length.
Fig 5.
View of major worker and queen hypostomal margin, extracted from 3D-scans as seen from posterior view.
Pheidole caldwelli: (A) major worker (CASENT0709599), (B) queen (CASENT0185623). Pheidole kava sp. n.: (C) major worker (CASENT0185437), (D) queen (CASENT0194645). Pheidole knowlesi: (E) major worker (CASENT0183992), (F) queen (CASENT0184086). Pheidole ululevu sp. n.: (G) major worker (CASENT0183915), (H) queen (CASENT0185564). Pheidole vatu: (I) major worker (CASENT0184486), (K) queen (CASENT0185452). Pheidole wilsoni: (L) major worker (CASENT0184311), (M) queen (CASENT0184003).
Fig 6.
Minor worker (CASENT0709599): full-face view (A), profile (D), dorsal view (E). Major worker (CASENT0709600): full-face view (B), profile (F), dorsal view (G). Queen (CASENT0185623): full-face view (C), profile (H), dorsal view (I).
Fig 7.
Minor worker (paratype, CASENT0183943): full-face view (A), profile (D), dorsal view (E). Major worker (holotype, CASENT0183620): full-face view (B), profile (F), dorsal view (G). Queen (CASENT0194645): full-face view (C), profile (H), dorsal view (I).
Fig 8.
Minor worker (CASENT0171041): full-face view (A), profile (D), dorsal view (E). Major worker (CASENT0171097): full-face view (B), profile (F), dorsal view (G). Queen (CASENT0171042): full-face view (C), profile (H), dorsal view (I).
Fig 9.
Minor worker (paratype, CASENT0184114): full-face view (A), profile (D), dorsal view (E). Major worker (holotype, CASENT0184180): full-face view (B), profile (F), dorsal view (G). Queen (CASENT0185564): full-face view (C), profile (H), dorsal view (I).
Fig 10.
Minor worker (CASENT0183692): full-face view (A), profile (D), dorsal view (E). Major worker (CASENT0184486): full-face view (B), profile (F), dorsal view (G). Queen (CASENT0185452): full-face view (C), profile (H), dorsal view (I).
Fig 11.
Minor worker (CASENT0185076): full-face view (A), profile (D), dorsal view (E). Major worker (CASENT0185117): full-face view (B), profile (F), dorsal view (G). Queen (CASENT0184003): full-face view (C), profile (H), dorsal view (I).