Wheeler and Wheeler — Myrmicine Larvae 141 
Erehomyrma sp. 
(Text fig. 1, G-I) 
Length about 2 mm. Short and stout; curved ventrally; 
posterior end conoidal and directed ventrally; anus at the 
tip of the conoid, with a conspicuous posterior lip; head 
ventral near the anterior end. Segmentation indistinct. 
Dorsal surface of posterior somites sparsely spinulose, the 
spinules minute and in very short transverse rows ; ventral 
surface of anterior somites with more numerous and longer 
rows. Head large, subpyriform in anterior view. Each 
antenna with three sensilla, each of which bears a spinule. 
Labrum small, subrectangular in anterior view, short and 
broad (breadth 2.3 X the length) ; anterior surface with 
four minute hairs, four sensilla and a few spinules; ventral 
border with six sensilla and a few spinules; posterior sur- 
face with four isolated sensilla and a few short rows of 
minute spinules. Mandibles heavily sclerotized; somewhat 
stout; apex forming a long slender acute tooth which is 
curved medially; posterior surface with one large medial 
tooth ; anterior surface with two large medial teeth ; medial 
surface may have a single denticle near the base. Maxillae 
rather small, lobose; palp a short frustum with four sen- 
silla; galea a short subcone with two sensilla. Anterior 
surface of labium spinulose, the spinules minute and in 
short rows; palp represented by a cluster of four sensilla; 
an isolated sensillum between each palp and the opening 
of the sericteries; the latter a short transverse slit. (Ma- 
terial studied: two damaged larvae from Costa Rica; hairs 
broken off.) 
Genus Carebara Westwood 
Shaped somewhat like a crookneck squash; thorax form- 
ing a short, stout neck which is strongly curved ventrally; 
abdomen somewhat swollen. Body hairs moderately numer- 
ous and short. Of two types: (1) deeply bifid, with the 
branches curled away from each other, the most common 
type; (2) a few with short-bifid tip, restricted to ventral 
and ventrolateral surfaces. Antennae small. Head hairs 
few, short, simple. Labrum small and subrectangular; the 
posterior surface apparently without spinules. Mandibles 
small, short and stout; apex forming a short slender tooth; 
