1965] 
Wheeler and Wheeler — Ant Larvae 
27 
fragments to mount on slides. Fragments are all right — in fact, 
necessary for some parts — if none is lost and if they can be correctly 
oriented. 
References. — W. M. Wheeler (1923, p. 335) used larval 
characters in establishing the subfamily (quoted above and also by 
G. C. Wheeler, 1928, p. 88-89 and referred to by G. C. and E. 
Wheeler, 1930, p. 198). 
G. C. Wheeler (1928, p. 89) justified W. M. Wheeler’s establish- 
ment of the subfamily. (Repeated G. C. and E. Wheeler, 1930, 
p. 199.) 
Kutter 1948 p. 294: “Alle bis jetzt bekannt gewordenen Larven 
der Leptanillinae haben den teilweise chitinisierten, ventralen 
Thorakalanhang gemein, wie offenbar auch die Senkrechtstellung der 
Mandibeln, wahrend der Besitz des als Tympanalorgan bezeichneten 
Organs noch nicht als typisch fiir alle Larven der Unterfamilie 
bezeichnet werden darf.” 
Bernard, 1951, p. 1041 : “Larves eucephales, carnivores; nourries 
par les ouvrieres.” 
Genus Leptanilla Emery 
We are unable to separate Leptanilla generically from Leptome- 
sites: the difference between the larvae of the two known species of 
the former are as great as the difference between either species and 
the larva of the latter. Therefore the subfamilial description will 
suffice for the genus. 
Bernard (1951, p. 1017) described primitive larvae and mentioned 
the larva of Leptanilla as an example. 
Kutter ( 1948, p. 292) differentiated the two genera by the absence 
of the naked area around the spiracle (“tympanum”) and the structure 
of the ventral prothoracic projection. As we show below, this dis- 
tinction is no longer tenable. 
The two species of Leptanilla differ with respect to the following 
characters: size and shape of terminal boss; complexity of ventral 
prothoracic projection; size and arrangement of long body hairs; 
shape of head ; number of teeth and spinules on the mandibles; and the 
sclerotized band bordering the spiracular area. 
Leptanilla revelierei sardoa Emery 
(Fig. 1-8) 
Length approximately 1.3 mm. Body elongate and slender; thorax 
slightly curved ventrally, slightly constricted at the metathorax; 
abdomen straight and clavate, the diameter increasing gradually to 
abdominal somite V and decreasing to the posterior end which is 
