. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. MANN: ANTS OF THE BRITISH SOLOMON ISLANDS. 377 posterior corners of head. Pronotum narrowly margined at sides, one and one third times broader than long, broadest behind; sides convex at posterior two thirds, in front concave; humeri developed as broad, lamellate lobes with elevated margins, apically concave and bidentate, the outer tooth elongate and spinose, the inner one rounded at tip. Mesoepinotum without suture or constriction, much shorter than pro- notum, flat except between spines where it is concave. Basal a
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. MANN: ANTS OF THE BRITISH SOLOMON ISLANDS. 377 posterior corners of head. Pronotum narrowly margined at sides, one and one third times broader than long, broadest behind; sides convex at posterior two thirds, in front concave; humeri developed as broad, lamellate lobes with elevated margins, apically concave and bidentate, the outer tooth elongate and spinose, the inner one rounded at tip. Mesoepinotum without suture or constriction, much shorter than pro- notum, flat except between spines where it is concave. Basal and declivous portions of epino- tum rounding into each other; declivity much longer than base. Epinotal spines less than twice as long as their distance apart at base, stout, rather strongly curved downward. Petiolar node in profile with anterior and posterior sur- faces subparallel; dorsal surface slightly convex, less than twice as broad as long, separated from posterior surface by an obtuse margin; spines a little shorter than their distance apart at base, stout, arcuate. Sublucid. Mandibles finely striate. Clypeus with fine oblique striae. Head, thorax, and epinotum with regular, slightly rugose striae, which are longitudinal except on sides of prono- tum where they are oblique. Petiolar node finely striate. Gaster densely and rather coarsely and rugosely striate longitudinally. Legs and antennae finely punctate. Erect hairs coarse, very sparse on head and apical portion of gaster. and body, with sparse, recumbent pubescence. Black Fig. 47.— Polyrhachis (Hedo- myrma) geminatus Mann. Worker. Thorax and petiole from above. Head Florida: Maliali. Described from a unique worker. The species is distinguished by the short, upturned, and bifurcate humeral spines, and the strong sculpture of the gaster. 110. Polyrhachis (Hedomyrma) annae, sp. nov. Worker. Length mm. Head distinctly longer than broad, evenly rounded behind, sides in front of eyes nearly straight
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