MANN: THE ANTS OF BRAZIL. 421 
54.  Eciton (Labidus) Leash (Latreille). 
Ceara, Baturité Mts., Natal, Independencia, and Parad, Brazil and 
at Abund, Bolivia. This is the most widely distributed and one of the 
commonest species. It is subterranean in habit, and often found 
beneath deeply embedded stones and logs. The specimens from 
Abunda were taken from beneath the putrid carcass of a sheep, and 
most of the individuals were dead or nearly so, possibly having been 
overcome by the gases of decomposition. 
55. Eciton (Labidus) praedator F. Smith. 
Common along the upper Rio Madeira, where it was taken at Porto 
Velho and Camps 28 and 39 Madeira-Mamoré R. R. One army was 
seen emerging from the commissary building at the first named sta- 
tion, carrying with it an incredible number of insects, mostly cock- 
roaches. Houses along the railroad were frequently raided at night 
by E. predator, which is well known to the Brazilians and called by 
them “cazadoro”’ (hunter). I had the opportunity of observing one 
hut while the ants were in possession. The ground was covered with 
the ants, which swarmed also in the cracks and on the few pieces of 
furniture, while the owner of the place, a Barbados negress, not 
accustomed to such intrusions, stood for safety in a puddle of soapy 
water with which she had attempted to drive the ants away, and 
begged me to tell her what to do to get rid of them. 
56. Eciton (Labidus) praedator subsp. emiliae, subsp. nov. 
Worker. Dvifferimg from the typical form in having the head and 
body largely opaque; the head more densely punctulate; the thorax 
and petiole with very few hairs. The pilosity of the gaster is much 
shorter and the pubescence is more dense; the color is reddish brown, 
becoming darker on the head. 
A large series of this new subspecies was sent to me by Dr. Emilia 
Snethlage, who collected it at Colonia de Veado, near Obidos. Possi- 
bly this is the var. ferruginea Norton, which was described from 
Mexico, but has not been recognized since. 
