1954] Wheeler and Wheeler — Basicerotini and Dacetini Ant Larvae 123 
which is round-pointed; dorsal profile C-shaped, ventral 
j-shaped. Anus ventral. Leg, wing and gonopod vestiges 
present. Spiracles small. Integument apparently without 
spinules. Body hairs numerous and uniformly distributed, 
except for the naked midventral surface; the longest and 
stoutest hairs border this naked area. Of two types: (1) 
short (0. 105-0. 175mm) , nearly straight, with short-bifid 
tip, each branch recurved and denticulate; (2) very few, 
widely scattered, simple, minute (about 0.009 mm). Head 
small; cranium about as long as broad; vaguely subpen- 
tagonal in anterior view, with a small dorsal projection 
from the middle of the occipital border. Each antenna 
mounted on a drumlin-shaped convexity, with three (some- 
times four or five) sensilla, each of which bears a spinule. 
Head hairs moderately numerous, short (0.024-0.072 mm), 
simple or with short-bifid tip. Labrum very small, sub- 
rectangular, about twice as broad as long; anterior surface 
with a pair of ventrolateral convexities, each of which bears 
nine or ten sensilla and/or minute hairs; near the ventral 
border the middle of the anterior surface is coarsely spi- 
nulose; ventral border coarsely spinulose and bearing four 
to six sensilla; lateral borders coarsely spinulose; posterior 
surface coarsely spinulose near the lateral and ventral 
borders, elsewhere beset with a few minute spinules (except 
for the center which is smooth) ; posterior surface with 
about 16 sensilla. Mandibles heavily sclerotized; straight 
and subtriangular in anterior view, curved posteriorly; 
apex stout, straight and blunt ; inner border with two blunt 
teeth near the middle. Maxillae with the apex paraboloidal 
and directed medially, on its outer surface a patch of large 
isolated spinules; palp digitiform with five sensilla (one 
lateral, two subapical and two apical) ; galea a tall cone 
with two apical sensilla. Labium densely spinulose, the 
spinules isolated and rather large; palp a skewed peg, with 
one lateral and four apical sensilla; an isolated sensillum 
between each palp and the opening of the sericteries; the 
latter a short transverse slit. Hypopharynx with a few 
minute spinules in short transverse rows. 
Young larva: Length about 5.5 mm. Subcylindrical ; 
strongly curved ventrally; thorax with a pair of ventro- 
