MANN: W l> <>! I III. 11.11 ISLANDS. 



17:, 



middle of anterior border. Antenna! scapes surpassing occipital corn< ra by a 

 little Less than half their Length. Thorax Btout. M ssonotum Bat, but Little 

 Longer than broad. Mesoepinotal impression broad .- » i m I deep. Basal portion 

 of epinotum convex, broad, about as loniz 

 as declivity and broadly rounding into it. 

 Node rather thick, cuneiform, moderately 

 inclined forward. 



Shining. Mandibles sparsely punctate. 

 Front and vertex with coarse, setigerous 

 punctures. Pilosity arranged as follows: 

 Long :iih1 abundant on head and gaster 



and mixed with shorter, fine, sparse, semi- 



erect hairs. Prothorax with four pairs and 



mesothorax with two pairs of coarse hairs, 

 tin 1 outer pairs on tin 1 pronotum shorter 

 than the inner ones; short, erect, and fine 

 hairs sparsely distributed on appendages. 



Color brownish yellow, with the tips of 

 antennae paler and the gaster somewhat 

 infuscated. 



Male. Length 1.80 mm. 



Fig. 28.— Prenolepia (Nylanderia) 

 vitiensis Mann. Male. Genitalia. 



Head, excluding eyes, distinctly longer than broad, sides in front of i 

 convergent. Eyes about three times as long as their distance to base of 

 mandibles. Clypeus convex, its anterior border very broadly and shallowly 

 concave. Mandibles well developed, their blades distinctly denticulate. 

 Antenna! si apes surpassing occipital corners by about half their Length. 

 Thorax robust, broadest in front of wing insertions. Metanotum in profile 

 sloping above, nearly straight, with the base, a little Longer than the declivous 

 portion. Petiole low, rather thickly cuneiform, rounded above. 



Genitalia with squamulae a little shorter than the stipes, nearly straight 

 at tips; stipes elongate, curved, narrowly rounded at tips; volsellae broadly 

 spear-head shaped; sagittae slender, with the ends narrowly rounded. 



Kadavu: Vunisea. 



The worker- resemble some small Tongan specimens of P. vividula 

 in the l'. S. X. M. collection (ex Coll. Mayr.) but is readily distin- 

 guished by the difference in the hairs on the antenna! scapes, which in 

 vividula arc very coarse and erect and in vitiensis fine and silky. The 

 genitalia of the male is somewhat similar to that of P. caledonica Forel 

 a- figured by Emery, with the volsellae broader basally and more 

 narrowed at tips, though because of the arrangement of the thoracic 

 inaeroehaetae in the worker, vitiensis belongs in the vividula group as 

 defined by Emery (Nova Caledonia. Zool., I'M 1. 1, p. 122). Type. — 

 M. C X. 8,717. 



