62 William Morton Wheeler 



I have seen ten workers from the Geolog. Inst. Koenigsberg Coll. 

 namely No. 218/4297 (Mayr's type), B 19990, XXB 1476, XXB 9, 



XB 1539, B 19706, B 253 and 

 three without numbers. In the 

 same collection I find a single 

 dealated female (B 18978) which 

 evidently belongs to this spe- 

 cies. It measures only about 

 4,5 mm and closely resembles 

 the worker except for the usual 

 Fig. 25. NothomyrmkarugosostriataUj.YVi. modifications of the thorax and 

 Worker, B 19706. the presence of ocelli. 



JVothomyrmica petiolata (Mayr). 



Macrnmischa petiolata Mayr, Beitr. Naturk. Preuss. I, 1868, p. 85, Taf. IV, Fig. 83, 84, $; 

 Dalla Torre, Catalog. Hymen. VIT, 1893, p. 120; Handliksch, P'oss. 

 Insekt. 1908, p. 876. 



Worker (Fig. 26). Length about 2,3—2,5 mm. 

 Head subrectangular, but little longer than broad, with rounded 

 sides and straight posterior border. Eyes moderately large and con- 

 vex, just in front of the middle of the head. Frontal carinse prominent. 

 Mandibles with several small, subequal denticles. Clypeus very con- 

 vex in the middle, depressed on the sides, with rounded anterior border. 

 Antennae 12-jointed, slender, scapes not reaching to the posterior 

 corners of the head, funiculus with a very distinct 3-jointed club, 

 which is as long as the remaining joints taken together; first funicular 

 joint as long as the three succeeding joints together; joints 2 — 7 narrow, 

 subequal, about as long as broad; 8th joint somewhat longer than the 

 preceding joints, as long as broad; terminal joint somewhat longer 

 than the two basal joints of the club. Meso- and epinotum not se- 

 parated by a suture, together forming a single rounded convexity in 

 profile. Mesoepinotal suture distinct. Epinotum depressed, armed 

 with two sharp spines, which are as long as their distance apart at 

 the base, directed backward, upward and outward and distinctly curved 

 downward towards their tips, which are slender and acute. Petiole 

 distinctly pedunculate in front, with a small, sharp tooth at its 

 antero-ventral end; seen from above the segment is nearly twice as 

 long as broad, broadest behind, with a pronounced, rounded node, 

 somewhat compressed anteroposteriorly, so that its anterior declivity 

 is deeply concave, its posterior surface steep and convex. Postpetiole 

 about half again as broad as the petiole, nearly twice as broad as 



