1923] 
Two New Ants from Bolivia 
15 
segment a little longer than the second or third. Legs long, the 
femora swollen and the tibiae enlarged apically. 
Fig. 1. Worker Lepianilloides biconslricia gen. nov. et sp. nov. A, dorsal, B, profile view. 
Shining; head with abundant, separated, coarse, punctures; 
thorax and abdomen with much finer and sparser punctures. 
Head, body and appendges with abundant, rather coarse, short 
and erect, brownish hairs. 
Color brownish red. 
Type-Locality. — Tumupasa, Bolivia. 
Cotypes. — Cat. No. 25905, U, S. N. M. 
Described from a small series of workers, taken with callows, 
but without sexual or immature phases, from beneath a deeply 
embedded stone near a stream. 
In general habitus this is very similar to Leptanilla, but the 
structure of the head associates it more closely with Eciton, from 
which it is distinct in the form of the frontal lamellae, the form 
of the gaster and in not being polymorphic. 
