DOI: 10.5061/dryad.7d3v4
title: Data from: Revision and microtomography of the Pheidole knowlesi group, an endemic ant radiation in Fiji (Hymenoptera, Formicidae, Myrmicinae)Myrmicinae)

description: The Fijian islands, a remote archipelago in the southwestern Pacific, are
 home to a number of spectacular endemic radiations of plants and animals.
 Unlike most Pacific archipelagos, these evolutionary radiations extend to
 social insects, including ants. One of the most dramatic examples of ant
 radiation in Fiji has occurred in the hyperdiverse genus Pheidole. Most of
 the 17 native Fijian Pheidole belong to one of two species groups that
 descended from a single colonization, yet have evolved dramatically
 contrasting morphologies: the spinescent P. roosevelti species group, and
 the more morphologically conservative P. knowlesi species group. Here we
 revise the knowlesi group, in light of recent phylogenetic results, and
 enhanced with modern methods of X-ray microtomography. We recognize six
 species belonging to this group, including two of which we describe as
 new: Pheidole caldwelli Mann, Pheidole kava sp. n., Pheidole knowlesi
 Mann, P. ululevu sp. n., P. vatu Mann, and P. wilsoni Mann. Detailed
 measurements and descriptions, identification keys, and high-resolution
 images for queens, major and minor workers are provided. In addition, we
 include highly detailed 3D surface reconstructions for all available
 castes.
description: Pheidole caldwelli major
 worker (CASENT0709599)Original scan files
 (dicom format) of Pheidole caldwelli major worker
 CASENT0709599Pheidole caldwelli minor
 worker (CASENT0709600)Original scan files
 (dicom format) of Pheidole caldwelli minor worker
 CASENT0709600Pheidole caldwelli queen
 (CASENT0185623)Original scan files
 (dicom format) of Pheidole caldwelli queen
 CASENT0185623Pheidole kava major
 worker (CASENT0185437)Original scan files
 (dicom format) of Pheidole kava major worker
 CASENT0185437Pheidole kava minor
 worker (CASENT0183982)Original scan files
 (dicom format) of Pheidole kava minor worker
 CASENT0183982Pheidole kava queen
 (CASENT0194645)Original scan files
 (dicom format) of Pheidole kava queen CASENT0194645Pheidole knowlesi major
 worker (CASENT0183992)Original scan files
 (dicom format) of Pheidole knowlesi major worker
 CASENT0183992Pheidole knowlesi minor
 worker (CASENT0184016)Original scan files
 (dicom format) of Pheidole knowlesi minor worker
 CASENT0184016Pheidole knowlesi queen
 (CASENT0184086)Original scan files
 (dicom format) of Pheidole knowlesi queen CASENT0184086Pheidole ululevu major
 worker (CASENT0183915)Original scan files
 (dicom format) of Pheidole ululevu major worker
 CASENT0183915Pheidole ululevu minor
 worker (CASENT0183250)Original scan files
 (dicom format) of Pheidole ululevu minor worker
 CASENT0183250Pheidole ululevu queen
 (CASENT0185564)Original scan files
 (dicom format) of Pheidole ululevu queen CASENT0185564Pheidole vatu major
 worker (CASENT0184486)Original scan files
 (dicom format) of Pheidole vatu major worker
 CASENT0184486Pheidole vatu minor
 worker (CASENT0185591)Original scan files
 (dicom format) of Pheidole vatu minor worker
 CASENT0185591Pheidole vatu queen
 (CASENT0185452)Original scan files
 (dicom format) of Pheidole vatu queen CASENT0185452Pheidole wilsoni major
 worker (CASENT0184311)Original scan files
 (dicom format) of Pheidole wilsoni major worker
 CASENT0184311Pheidole wilsoni minor
 worker (CASENT0184378)Original scan files
 (dicom format) of Pheidole wilsoni minor worker
 CASENT0184378Pheidole wilsoni queen
 (CASENT0184003)Original scan files
 (dicom format) of Pheidole wilsoni queen CASENT0184003