106 
Psyche 
[September 
sensilla. Clypeus distinct; a thick flap. Labrum a thick flap; small; 
broader than long; constricted near base; free border strongly 
curved and bearing several conspicous sensilla; posterior surface 
with numerous sensilla near the middle and with spinules arranged 
in short arcuate rows near the periphery. Mandibles rather feebly 
sclerotized; long and slender; base moderately stout; apical two- 
thirds narrow, thin, curved backward and medially, and tapering to 
a rounded point; apical half of medial border serrate will five or 
six denticles. Maxillae lobose, round-pointed, rather long; apical 
half spinulose, the spinules grouped in short rows; palp a low el- 
liptical elevation (bearing two sensilla) together with a contiguous 
papilla (which bears an apical sensillum) ; galea a long slender 
finger-like projection bearing an apical sensillum. Labium prom- 
inent, constricted at the base; free end broadly rounded; middle of 
anterior surface spinulose, with the spinules arranged in short trans- 
verse rows ; palp a low rounded elevation (bearing three sensilla) 
together with a contiguous paxilla (bearing a single apical sensil- 
lum). Opening of sericteries distinct. (Material studied: three 
semipupae from Fiji collected by Dr. W. M. Mann.) 
Cerapachys ( Cerapachys ) sp. — Fig. 2e. Similar to crypta but dif- 
fering in a few details. The body hairs are shorter (0.2 - 0.3 mm. 
long) but more abundant. The head hairs are longer (0.054 mm. 
long). The mandibles have more denticles (about a dozen on each). 
The maxillary palp is a low elevation bearing four sensilla. The 
labial palp is a low elevation bearing five sensilla. (Material studied: 
10 semipupae from Borneo.) 
Wheeler, G. C. 1938, p. 141 : no evidence of wing rudiments. 
Cerapachys ( Parasyscia ) augustae Wheeler. — Text fig. 1. “The 
larvae were extremely slender, not twice as broad behind as at the 
anterior end, with well-marked segmental constrictions. The head 
is proportionately large, with strong, acute mandibles projecting 
beyond the clypeal and labial regions. The maxillae are furnished 
with a pair of prominent sensory papillae and the labium with a 
well-developed duct to the spinning glands. The dorsal surface of 
the head as well as the whole surface of the body is covered uni- 
formly with short, slightly curved hairs. There are no traces of 
tubercles of any description. Attempts to observe the method em- 
ployed by the ants in feeding their larvae were unsuccessful. Once, 
on placing a number of eggs and young larvae of Camponotus 
festinatus in the nest I saw the young Cerapachys larvae feeding 
