1954] Wheeler and Wheeler — Basicerotini and Dacetini Ant Larvae 137 
lobe with a few minute spinules and two contiguous sen- 
silla ; posterior surface of each lobe with three sensilla ; 
middle half of posterior surface densely spinulose, the 
spinules minute and in subtransverse rows. Mandibles 
subtriangular in anterior view, with the apical half heavily 
sclerotized; apical tooth long, stout, sharp-pointed and 
curved medially; with two sharp-pointed teeth on the 
inner border. Maxillae short and lobose; palp a low eleva- 
tion bearing four sensilla; galea digitiform, with two apical 
sensilla. Labium large; anterior surface spinulose, the 
spinules in short curved subtransverse rows; with a pair 
of mammiform ventrolateral lobes, each bearing a palp, 
which is a low elevation bearing four sensilla ; an isolated 
sensillum between each palp and the opening of the seric- 
teries ; the latter a very short transverse slit. Hypopharynx 
densely spinulose, the spinules minute and in numerous 
long subtransverse rows. (Material studied: two dozen 
larvae from Alabama and Mississippi; courtesy of Dr. W. 
L. Brown.) 
Wilson, 1953: The larval food is chiefly Collembola, but 
a few other arthropods are occasionally eaten (p. 481). 
“Larvae are fed by being placed directly on the prey. As 
many as ten or more may be piled at first on the same 
collembolan, and since they are active feeders they may 
wholly consume a small individual within several hours. 
The final fragments of the insect are held aloft, ponerine 
fashion. No case of ingluvial feeding of the larvae by the 
workers was ever observed, although occasionally workers 
were seen passing food in this manner” (p. 483). The 
life cycle was found to be: egg, 12 days; larva, 29 days; 
pupa, 12 days. (p. 491). 
Strumigenys australis Forei 
(PI. 10, figs. 8-15) 
Immature (?) : Length about 1.6 mm. Generally similar 
to louisianae, except in the following characters : Seg- 
mentation distinct. Spinules restricted to ventral surface 
of thorax. Body hairs — (1) length 0.009-0.12 mm, with- 
out alveolus and articular membrane; (2) shorter (0.054- 
0.11 mm), with or without alveolus and articular 
