26 



William Morton Wheeler 



JPtnonomyrmex longiceps Mayr. 



Prionomyrmex longiceps Mayr, Beitr. Naturk. PreuS. I, 1868, p. 78, Taf. IV, Figs. 

 74, 75, $; Dalla Torre, Catalog. Hyraenopt. VII, 1893, p. 22; Hand- 

 lirsch. Fossil. Insekt. 1908, p. 879. 



Worker (Fig. 1). Length 10 — 14 mm. 

 First funicular joint of antennae about half as long as the second, 

 the second the longest, and the succeeding joints gradually decreasing 

 in length to the penultimate, which is a little shorter than the last 

 joint. Surface of body smooth, very finely shagreened, but not 

 punctate or rugulose. Hairs moderately abundant, erect or suberect. 



Fig. J. Prionomyrmex longiceps Mayr. Worker, K5103. 



short on the head, thorax, legs and scapes, somewhat longer on the 

 abdomen. Pubescence indistinct, except in one specimen (B 259), in 

 which it seems to be abundant but glued to the body by a white film. 

 Three specimens in the Klebs Coll. (K 5103, K 1024 and A 129); 

 and five in the Geolog. Inst. Koenigsberg Coll. (B 258, B 259, B 14762, 

 and two without numbers). Two of the specimens in the latter col- 

 lection lack the head; of the three others only one possesses ocelli. 

 These organs are also lacking in the specimens from the Klebs Coll. 

 As would be expected, Mayr's ocellate individual and the one I have 

 seen are both larger (14 mm) than the nonocellate individuals. 



