MANN: THE ANTS OF BRAZIL. 487 



hairs, the latter without pubescence, but with a few erect hairs. The 

 first segment of gaster shining, minutely striolate, with very sparse 

 appressed hairs and a few" long ones. Rest orgaster more pubescent, 

 and pilose, striolate, semishining. Legs shining, femora and tibiae 

 pilose, tarsi with semiappressed pubescence. 



Color black, except legs, which are dark "reddish brown. Pile and 

 pubescence gray. 



Described from one worker taken at Abuna, Rio Madeira. 



222. Dendroinyrmex apicalis, sp. no v. 

 Plate 6, fig. 43. 



Worker. Length 8.5 mm. 



Head one and one fourth times as broad as thorax, with sides in 

 front of eyes very slightly convex; behind eyes narrowed to near the 

 base, then reflexed outward, forming a short, but distinct neck. 

 Frontal laminae short and protruding. Clypeus longitudinally 

 carinate. Mandibles thick, the blades with six acute teeth. An- 

 tennae long and slender, the scape extending a little past the pro- 

 mesothoracic suture. Eyes hemispherical. Frontal area but little 

 longer than broad; with a strong longitudinal impression. Eyes 

 small, hemispherical, located only slightly behind and beneath middle 

 of sides of head. Pronotum noticeably longer than broad; sides 

 round, in front semimarginate; surface slightly convex posteriorly, 

 flattened anteriorly, but not disciform. Mesothorax as broad as 

 long, sides evenly rounded, seen in profile slightly convex, with faint 

 depression at middle. Epinotum a little over three times as long as 

 broad, sides slightly convex, evenly margined; in profile evenly 

 convex from apex to base, surface flattened. The perpendicular 

 anterior surface, and the slanting anterior surface of the petiolar node 

 form an acute angle at the apex. Postpetiole with slight depression 

 at middle; apex, seen from behind rounded. Gaster suboval. Legs 

 long and slender. 



Body, except gaster and legs, sublucid throughout, gaster shining. 

 Head and thorax finely, transversely striolate, the striae more coarse 

 on the epinotum and petiolar node, but extremely delicate on the 

 gaster. Body finely punctate, each puncture with a short, recumbent 

 hair. 



Scape of antennae with a thin pubescence; funiculus with thicker 



