136 
Psyche 
[August 
of triangular pores, but some of those on the thorax often 
greatly reduced or entirely wanting; the numbers of spines in 
the different cerarii showing the following range in four speci- 
mens: I (anterior), 3-4; II, 3-4; III, 2-3; IV, 0-3; V, 1-3; 
VI, 0-2; VII, 1-5; VIII, 0-2,; IX, 2-4; X, 2-4; XI, 3-4; XII, 
2-4; XIII, 2-4; XIV, 4-5; XV, 4-5; XVI, 6-9; XVII (anal 
lobo). 11-22; in mounted specimens, with the posterior two or 
three cerarii on each side dorsal and the remainder ventral; 
apex of abdomen not produced into lobes; ventral chitinous 
thickening elongate, bearing several setae; apical setae about 1 45/x 
long; longest and anal ring seta about 93g long; anal ring of 
normal form and construction, with inner and outer rows of 
pores but with the setae more numerous than in other species of 
the genus, there being three larger primary setae and from five to 
ten smaller supplementary setae on each half of the ring, the smaller 
setae about half the length of the larger; dorsally with small 
triangular pores only, these scattered rather uniformly over the 
surface except along the body margin and at the cerarii where 
they are more numerous; ventrally with the triangular pores 
over most of the surface, with a few large, circular, multilocular 
disk pores around the genital opening, with two median trans- 
verse rows of tiny tubular ducts just anterior to these, and with 
a very few disk pores at the spiracular openings; cerarian 
spines conical, varying greatly in size; body with numerous, 
but scattered, slender setae, these averaging larger dorsally and 
most abundant along the body margin; with a single, large 
quadrate median ventral cicatrix posterior to the hind legs 
Immature Stages . — None available for examination. 
This species has been described from five specimens with 
the following data, according to Dr. Wheeler’s notes: 
“No. 87. Barakara, B. G. July 15, 1920. In the cavities of 
the stems of Cecropia angulata I. W. Bailey. The ants in this 
Cecropia were a species of Azteca not yet identified.” (Holotype). 
“No. 89. Barakara, B. G. July 15, 1920. In the cavities of 
