112 Psyche [September 
zeigen ebenso wie die nackten Puppen keine bemerken- 
swerten Besonderheiten.” 
Pogonomyrmex ( Forelomyrmex ) mayri For el 
Apparently similar to occidentalis except for the follow- 
ing characters : Head oval in anterior view, somewhat 
longer than broad. Head hairs few. Anterior surface of 
each lobe of labrum with two minute hairs and four sen- 
silla; posterior surface with five scattered sensilla on each 
lobe. Mandibles larger and more elongate, the medial 
teeth more blade-like. Labial palp with four apical and one 
lateral sensilla. (Material studied: three integuments 
(without hairs) from Colombia.) 
Genus Myrmica (Latreille) 
Stout; diameter greatest at the fifth abdominal somite; 
slightly attenuated anteriorly ; thorax very stout and arched 
ventrally, but not differentiated into a neck; posterior end 
broadly rounded; anus posteroventral. Body hairs sparse; 
minute to long, of three types — (1) simple, (2) denticul- 
ate and (3) anchor-tipped; anchor-tipped hairs in trans- 
verse rows of 2-4, restricted to the dorsal surface of the 
5-8 anterior abdominal somites, one row on each somite. 
Antennae each with three (rarely two or four) sensilla, 
each bearing a stout spinule. Head hairs few, short to 
long, mostly denticulate. Labrum small and short, breadth 
twice the length; bilobed; anterior surface of each lobe 
with 2-4 minute hairs and usually one or two sensilla; 
ventral border of each lobe with two sets of two contiguous 
sensilla each; posterior surface with minute spinules ar- 
ranged in rows and with 8-18 sensilla. Mandibles with the 
apical third stout, sharp-pointed and slightly curved medial- 
ly; anterior surface produced mesally into a thin blade, 
which usually bears one small stout tooth and which may 
be denticulate near the base; mesal surface concave. 
Adlerz, 1886 : “Some larvae with hairs shorter and simple 
or moderately branched at the tip, some with longer hairs 
which are either provided with short lateral spines or are 
shortly branched at the tip. The tips of the uncinate hairs 
vary but the anchor-like shape is the most common” (p. 
259; translated from Swedish by Professor Edith Eh 
