WHEELER: MYRMICINE ANTS FROM BRAZIL. 487 
but it differs so much from the other known genera in the structure of 
the head and especially in the 2-jointed club of the antennae, the 4- 
toothed mandibles and the regularly arranged, setiform hairs on the 
dorsal surface, that it seems necessary to establish a distinct genus 
for its accommodation. Apart from the head, the structure of the 
body is very simple and primitive for an Attiine ant, even simpler 
and more primitive than in the genus Proatta, recently established 
by Forel for a unique Sumatran species. It would be interesting to 
know whether Blepharidatta brasiliensis cultivates fungi like all the 
other known American Attiini. 
GLAMYROMYRMEX, gen. nov. 
Worker. Small, monomorphic; closely related to Strumigenys and 
Epitritus, but differing greatly from these genera in the structure of 
the head, which is suboblong, with deep scrobes on the sides above 
the eyes for the accommodation of the antennae. Lateral border of 
the head forming with the expanded frontal carina and external border 
of the clypeus a translucent plate overarching the scrobe on each side. 
Gular region rather narrow so that the eyes, which are small and in 
front of the middle of the head are approximated and seem to be on 
its lower surface. Upper surface of head rather flat, separated by a 
very indistinct suture from the transverse clypeus. Ocelli, frontal 
groove, and frontal area absent. Mandibles small, with distinct apical 
borders, armed with a regular row of rather slender acute teeth. An- 
tennae 6-jointed, funiculus with a 2-jointed clava. Thorax, pedicel, 
and gaster much as in Strumigenys; petiole, postpetiole, and base 
of gaster bearing spongiform appendages. Epinotum armed with a 
pair of spines and with acute metasternal angles. Upper surface of 
head smooth and shining, sculpture of remainder of body much as in 
Strumigenys. Hairs slender and pointed, not clavate. 
Female. Head decidedly shorter and broader than in the worker 
and narrowed in front, but otherwise of similar structure. Eyes 
larger, ocelli well-developed. Remainder of body much like that of 
Strumigenys, and the wings of similar but even more reduced vena- 
tion, as the base of the cubital vein is largely obsolete, although the 
anal vein is present. Petiole, postpetiole, and base of gaster with 
fungiform appendages as in the worker. 
Male. Closely resembling the male of Strumigenys. Mandibles 
very small, with only a single, apical tooth. Head of the usual struc- 
