The Ants of the Baltic Amber. 



37 



Female (ergatoid?) (Fig. 7b). Length about 6 mm. 



Resembling the worker. The ocelli are probably present but 

 hidden by one of several air-bubbles which are scattered over the 

 body. Eyes but little larger than those of the worker. Thorax rather 

 stout, with distinct mesonotum, scutellum and metanotum, but 

 with no clear indications of having borne wings. The epinotum and 

 petiole resemble the corresponding parts of tlie worker. Surface of 

 body opaque, its chitinous integument much decomposed. Hairs absent. 

 Color deep black throughout. 



Described from a single worker in the Geolog. Inst. Koenigsberg 

 Coll. (no number) and a single female (K 5122) in the Klebs Coll. 

 The species is clearly very closely related to the living members of the 

 genus Plaiythyrea, which has a wide distribution in the tropics of 

 both hemispheres. 



Tribe Ponerini Forel. 



Genus Euponera Forel. 



Eupoiiera ( Jvachyniesopus) siiccinea (Mayr). 

 Ponera succinea Mayr, Beitr. Naturk. Preuss. I, 1868. p. 72 9; Dalla Torre, Catalog. 

 Hymen. VII, 1893, p. 42; Handlirsch, Foss. Insekt. 1908, p. 879. 



Female (Fig. 8a— c). Length about 6 mm, wings nearly 7 mm. 



Fig. 8. Euponera (Trachymesopus) succinea (Mayr); a) Female in profile; 

 b) head, from above; c) wing. 



Head rectangular, a little longer than broad. Eyes rather large, 

 anterior, slightly flattened. Ocelli well developed. Mandibles convex, 

 with six large, subequal teeth. Clypeus with a strong longitudinal 

 projection in the middle, its anterior border broadly rounded. Antennao 



