1944] Genus Pseudomyrma 77 
II. var. cordobensis. Length 6-6.5 mm.; head not con- 
cave behind as in the type; color reddish yellow. 
Argentina. 
III. subsp. symbiotica. Length 4.4-4. 7 mm.; color red- 
dish yellow, middle of the gaster brown. 
IV. subsp. symbiotica var. Icewensohni. Length 5. 5-5. 7 
mm.; color reddish brown. Panama. 
V. var. ecuadoriana var. nov. Length 5.5 mm.; with a 
brown occipital spot; postpetiole more transverse 
than in the type; color reddish brown, first three 
abdominal segments banded brown. Ecuador. 
Pseudomyrma acanthobia, subsp. deliculata var. limai var. nov. 
PI. IV, fig. 24. 
Worker. 
Length 2-3 mm. Close to the subspecies deliculata from 
which it differs by the following characters. The whole body, 
except the pedicel, very shiny (the subspecies is sublucid). 
Smaller and slenderer. The whole occiput is transparent show- 
ing the outlines of the brain (the type is a little transparent 
on the occiput). The scapes are shorter and fail to reach the 
middle of the eyes. The petiole is even more slender than in 
deliculata and is finely punctate and subopaque. The abdominal 
spots are barely visible, or absent in some specimens, while in 
deliculata they are dark brown and large. Described from sev- 
eral workers taken from an unspecified tree. 
Type locality: Lima, Peru. 
Holotype No. 75, Haskins Collection, located in the Bio- 
logical Laboratories, Harvard University, Cambridge, Massa- 
chusetts. 
Pseudomyrma allidora sp. nov. 
Worker. 
Length 3-3.5 mm. The new species is intermediate between 
P. acanthobia and P. sericea in the shape of the pedicel. It dif- 
fers from P. sericea by its lighter color and from P. acanthobia 
by the presence of erect hairs, a much longer head, coarser 
sculpturing on head and thorax, absence of brown spots on the 
abdomen, etc. 
Head, without mandibles, about \y 2 times as long as broad 
with nearly straight sides and weakly concave posterior border. 
