MANN! INTS "I I ill. ll.ll ISLANDS. \ '■'>'■> 



2 1. Pheidoi i \\ [lsoni, >\). nov. 



Soldier. Length 2.75 nun. 



I lead one fifth longer than broad, slightly narrowed in front, Bides nearly 

 si raight , occipital corners broadly rounded, border narrowly and rather * 1* ■« | »I \- 

 excised ,ii middle; vertex transversely impressed. Mandibles bidentate at 



tip and with :ui obtuse tooth :it base of blades. Clypeus flat, very feebly 

 concave at middle of anterior border. Antenna) scapes extending distinctly 

 more than half the distance to occipital corners; first funicular joint nearly as 

 long as t he three following joints together, joint- 2 8 a little longer than broad; 



club slender, with the terminal joint as long as the two preceding joints to- 

 gether, Antenna! aerobes broad and shallow, bordered inwardly by a narrow 

 carina. Eyes small, little convex, situated at anterior third of sides of bead. 

 Thorax strongly arched in profile; Bides of pronotum bluntly conical at middle, 

 of epinotum concave at middle, roundly margined at sides, equal in 

 length to the declivity. Epinotal spines as long as their distance aparl at base, 

 their tips rather blunt; erect, moderately divergent and extending slightly 

 backward. Pet iole elongate, t be node in profile higher than long and narrowly 

 rounded above, dorsal surface evenly rounded. Postpetiole two and one half 

 times a- broad as petiole; in profile, highest and rather narrowly rounded in 

 front of middle, sides produced as cones, which arc nearly straight and less 

 then half a- long as the width of node. 



Shining. Mandibles sparsely and very finely punctate. Front with 

 longitudinal rugae, which become finer and reticulate on vertex. Checks with 

 finer and more dense rugae. Vertex rugulose. Occiput very reticulately 

 rugulose and with sparse, coarse punctures. Pronotum with irregular, trans- 

 verse striae. Epinotum and anterior and posterior faces of petiolar node and 

 postpetiole shallowly punctate. Gaster finely and regularly punctate. 



Erect hairs long and silky, moderately abundant on head, body, and ap- 

 pendages. 



Color very dark brown; anterior portion of head, the mandibles and ap- 

 pendages brownish red. 



Worker. Length 1.50-1.75 mm. 



Bead a little longer than broad, as broad in front as behind, sides feebly 

 convex, posterior border nearly straight. Mandibles with seven fine teeth. 

 Clypeus strongly convex basally. anterior border distinctly, though shallowly 

 concave at middle. Antenna! scapes surpassing occipital corners by a little 



hi ne third their length; funicular joints 2-8 slightly longer than broad. 



Promesonotum rounded in profile, the sides broadly and subangulately pro- 

 duced in front of middle. Base of epinotum flat, much longer than declivity; 

 spines longer than their distance apart at base, ereol and moderately divergent . 

 Petiolar node elevated and narrowly rounded above. Postpetiole one and 



