Wheeler and Wheeler — Myrmicine Larvae 139 
and abdominal somites I and ii with a few long transverse 
rows of spinules. Body hairs moderately numerous, uni- 
formly distributed, short. Of two types: (1) deeply bifid, 
0.036-0.054 mm, with the branches curling away from each 
other, the most abundant type, absent from the ventral 
surface of the thorax (a few of this type are trifid or have 
the branches denticulate), without alveolus and articular 
membrane; (2) a few hairs on the ventral surface, 0.018- 
0.045 mm, with short-bifid tip, with alveolus and articular 
membrane. Head large; cranium suboctagonal in anterior 
view, slightly broader than long. Antennae with three 
(rarely two) sensilla, each bearing a short spinule. Head 
hairs few, short (0.018-0.036 mm), varying in arrangement 
and shape (simple or bifid or trifid or with short-bifid tip 
or long-branched with a few denticles.) Labrum small, 
short and broad (breadth 3X length) ; subrectangular, with 
the ventral corners rounded; anterior surface with four 
minute hairs, four sensilla and a few spinules; ventral 
border spinulose; posterior surface with six isolated sen- 
silla and a few spinules. Mandibles heavily sclerotized; 
a trifle stout; apex forming a long slender tooth which 
is curved medially; a large subapical tooth on the anterior 
surface; an acute medial tooth arising from the posterior 
surface near the middle of the mandible; one or two addi- 
tional medial teeth may be present. Maxillae with the apex 
paraboloidal; palp a cluster of four sensilla, two of which 
bear each a spinule and two a cap ; galea a short knob with 
two sensilla. Anterior surface of labium sparsely spinulose, 
the spinules minute and in short rows; palp a cluster of 
four sensilla, two of which bear each a spinule and two a 
cap; a minute hair between each palp and the opening of 
the sericteries ; the latter a short transverse slit. 
First instar larva : Length about 0.27 mm. Body short, 
stout and subovoidal. Head very large, ventral. Hairs 
simple, about 0.006 mm long. Integument of dorsal surface 
with spinules in short transverse rows. 
Second instar larva: Similar to the first instar but 
with hairs up to 0.009 mm long. 
Young larva: Length about 0.73 mm. Short and stout 
with the prothorax curved ventrally to a right angle. Head 
very large. Body hairs very short (0.006-0.018 mm), most 
