414 Bulletin American Museum of Natural History. [Vol. XXXIV, 
a 
40. Aphenogaster texana Emery var. carolinensis var. nov. 
Worker. Length: 4-5 mm. 
Averaging somewhat smaller than the typical texana, with the epinotal spines 
nearly as long but less erect and directed more backward. The ground color of the 
body.is less red and more brownish, with the dorsal surface of the head, thorax, 
pedicel and gaster varying from light to dark brown, the base and tip of the gaster 
paler, antennze ferruginous, legs yellow; sculpture of the head more pronounced than 
in texana. 
Female (dedlated). Length: 5.5 mm. 
Decidedly smaller than the female texana, with narrower clypeal emargination, 
shorter thorax, and the petiolar node more acute in profile; gaster less voluminous, 
broadly elliptical. Color much as in the worker. 
Described from a single female and numerous workers taken from several 
small colonies nesting under stones in open woods at Tryon, North Carolina. 
41. Leptothorax eldoradensis sp. nov. 
Worker. Length: 1.8 mm. ) 
Head subrectangular, longer than broad. “ Mandibles 5-toothed. Clypeus with 
entire anterior border, which is straight in the middle and not produced, its upper 
surface impressed in front at the margin. Antenne 12-jointed; scapes reaching to 
the posterior corners of the head; funicular joints 2-8 slightly broader than long; 
two basal joints of club together nearly as long as the terminal joint. Thorax rather 
short and robust, scarcely longer than the head with the mandibles, decidedly broader 
in front than behind, with rounded humeri, the sides of the meso- and epinotum 
subparallel. In profile the dorsal outline is convex in front, straight in the middle 
and sloping in the epinotal region, both the base and declivity of the latter being 
subequal and having the same slope; spines reduced to very small, acute teeth, which 
are shorter than broad at their bases. Petiole from above but little longer than 
broad, scarcely pedunculate, with straight, subparallel sides; in profile the node is 
rather high with angular summit, the anterior slope long and distinctly concave, the 
posterior short and abrupt. Postpetiole small, scarcely half again as broad as the 
petiole, a little broader in front than behind, convex and subelliptical in outline when 
seen from above. Gaster elliptical, with straight anterior border. Legs rather 
slender, the femora and tibize feebly clavate. 
Head, thorax, pedicel and appendages subopaque, the head slightly shining on the 
vertex and occiput; gaster smooth and shining. Mandibles rather coarsely striato- 
punctate; clypeus with three strong median longitudinal carine or rug and numer- 
ous feebler rugee on the sides. Head, thorax, petiole and postpetiole densely and 
evenly punctate; head also longitudinally rugulose. Legs and scapes more finely 
punctate-shagreened. 
On the body the hairs are white, erect, obtuse but not clavate, and sparse; on 
the appendages they are delicate, pointed, appressed and more numerous. 
Chestnut brown; gaster paler at the base; mandibles and legs yellowish brown; 
femora and tibiz infuscated in the middle. 
