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 of gaster 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 Abund, Rio Madeira. 
222. Dendromyrmex apicalis, sp. nov. 
Plate 6, fig. 48. 
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. , 
Seape of antennae with a thin pubescence; funiculus with thicker 
