136 
Psyche 
[December 
surface with 5-6 sensilla; ventral border with a few spinules 
and two isolated sensilla; posterior surface with 5-6 sen- 
silla and three spinulose areas, a central area of minute 
spinules arranged in a few scattered short rows and two 
ventrolateral areas of coarse isolated spinules. Mandibles 
small, short, stout and thick; apex forming a small tooth 
which is curved medially and posteriorly; with two small 
medial teeth near the anterior surface. Maxillae with the 
apex paraboloidal; palp a low elevation bearing four sen- 
silla; galea a low knob bearing two sensilla. Anterior sur- 
face of labium sparsely spinulose, the spinules isolated or 
in short transverse 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. 
Young larva: Length about 1.1 mm. Thorax bent ven- 
trally to an acute angle; diameter nearly uniform but 
greatest at the third and fourth abdominal somites. Head 
relatively very large. Posterior end forming a knob which 
is directed posteroventrally. Otherwise as in the mature 
larva. 
Material studied: two dozen larvae from the Philippine 
Islands. 
Explanation of Plate 6 
Oligomyrynex parviconm Forel, Figs. 1-7 — 1, head in anterior view, 
XI 15; 2, left mandible in anterior view, X303; 3 and 4, two body hairs, 
X418; 5, first instar larva in side view, X39; 6, young larva in side 
view, X39; 7, mature larva in side view, X39. 
Phcidologeton diversus (Jerdon), Figs. 8-16 — 8, head in anterior view, 
X77; 9, left mandible in anterior view, X209; 10, left mandible in 
medial view, X209; 11, young larva in side view, X36; 12, mature larva 
in side view, X36; 13-16, four body hairs, X418. 
Phcidologeton nfjinis (Jerdon), Figs. 17 and 18 — 17, profile of sexual 
(?) larva, X2.7; 18, left mandible of sexual (?) larva in anterior view, X209. 
Careham icinifredae Wheeler, Figs. 19 and 20, two body hairs, X418. 
Carebara lignnta Westwood, Figs. 21-23 — 21, head in anterior view, 
X108; 22, profile of worker larva, X18; 23, left mandible in anterior 
view, X245. 
Paedalgus termitolestes Wheeler, Figs. 24-27 — 24 and 25, two body 
hairs, X329; 26, head in anterior view, Xl32; 27, left mandible in 
anterior view, X303. 
