108 
Psyche 
[September 
Genus Leoponera Mayr 
Diameter least at the first abdominal somite, increasing toward 
either end. No leg vestiges. Body hairs of three types: (1) long and 
flexuous with the tip hooked; (2) short and simple; (3) minute and 
simple. Cranium subhexagonal in anterior view; occipital border 
broadly angulate. Head hairs minute or short. Labrum large, cover- 
ing most of the mandibles ; width about three times the length ; free 
border strongly curved ; numerous sensilla on posterior surface. 
Mandibles short and stout; very feebly sclerotized. Maxillae very 
large and inflated; palp represented by a cluster of sensilla. No 
spinules on the mouth parts. 
Lioponera luzuriagae Wheeler & Chapman. — Fig. 3. Elongate, 
slender, subcylindrical, arcuate (i.e., rather evenly curved ventral- 
ly) ; diameter least at the first abdominal somite, increasing grad- 
ually toward the ends. Anus subterminal. Eleven differentiated 
somites. No leg vestiges. Spiracles small. Body hairs of three types: 
(1) long (0.1 - 0.2 mm.) and flexuous, with the tip hooked, arranged 
in rows, one row of 6-12 hairs around each somite near the middle; 
(2) short (0.05 - 0.1 mm.), simple, slightly curved, sparsely and 
irregularly distributed, except on the prothorax, where they produce 
a bristly aspect; (3) minute (0.013 - 0.026 mm. long), simple, 
moderately numerous and uniformly distributed. Head small. Cran- 
ium subhexagonal in anterior view; a little broader than long; oc- 
cipital border obtusely angulate at the middle. Head hairs very 
few; simple; variable in length (0.013 - 0.027 mm.), number 
and location. Antennae moderately large, each with three sensilla. 
Labrum a large thick flap twice as broad as long and covering most 
of the mandibles ; with its base constricted and its free border broad- 
ly rounded; numerous sensilla on posterior surface. Mandibles very 
feebly sclerotized; short and stout; with the basal two-thirds 
greatly inflated and subtriangular in anterior view ; distal third very 
small and curved posteriorly, its apex curved medially and blunt- 
pointed; distal half of medial border furnished with five to nine 
sharp denticles of various sizes and irregularly arranged. Maxillae 
very large, inflated, lobose; palp represented by a cluster of five 
sensilla; galea a small finger-like projection bearing an apical 
sensillum. Labium large and prominent; palp a cluster of five sensil- 
la. (Material studied: several larvae from the Philippine Islands, 
collected by Dr. J. W. Chapman.) 
A few of the larvae in the vial have branched hairs, but they also 
