282 WHEELER. 



Worker. Length 11 mm. 



Head a little broader at the level of the eyes than in front; con- 

 tracted behind in the form of a cone, which is narrower and quite as 

 long as in the typical varians and the preceding varieties. Antennal 

 scapes surpassing the head by about f their length. Gaster brown; 

 head and thorax presenting a mixture of pale brown and yellowish red; 

 femora pale brown ; tarsi and tibite pale yellow ; antennae yellowish red. 



Queensland: Brisbane (Rothney). 



I refer to this variety, of which I have translated Forel's description,, 

 a single specimen found running on the ground in dry woods at Enog- 

 gera, near Brisbane, Queensland. The mandibles, cheeks and mouth- 

 parts, the pleurae and whole epinotum, except a large spot on its dorsal 

 surface, the anal segment, antennae, tibiae and tarsi are yellowish tes- 

 taceous, the remainder of the body brown, the gaster more blackish. 



19. Leptomyrmex unicolor Emery. 



(Fig. 12.) 



Emery, Ann. Soc. Ent. Belg. 39, 1895, p. 351, 352, g Fig. ; Frog- 

 gatt, Agric. Gaz. N. S. W., Sept. 1905, p. 23; Emery, Genera Insect. 

 Fasc. 137, 1912, p. 17. 



Worker. Length 7-8.5 mm. 



Head, excluding the mandibles, not more than 1^ times as long as 

 broad, broadest at the level of the eyes, convex in the frontal region, 

 flattened beneath; sides behind the eyes rather straight and converging 

 to the broad, straight occipital border. Eyes about half way between 

 the anterior borders of the cheeks and the posterior border of the head. 

 Mandibles moderately long, with about 20 small, crowded teeth on the 

 apical and several distinct teeth on the basal border. Antennal 

 scapes slender, distinctly flattened, surpassing the head by nearly | 

 their length. Thorax rather short, pronotum less than 1^ times as 

 long as broad; base and declivity of epinotum subequal, passing into 

 each other through a very rounded angle. Petiole narrow, with a low, 

 rounded node, with subequal anterior and posterior slopes, the former 

 feebly convex, the latter straight in profile, the ventral surface only 

 feebly convex. Gaster slender, more than three times as long as 

 broad. Legs slender; tibije very slightly flattened. 



Subopaque very finely and densely shagreened ; mandibles smooth 

 and shining along their apical borders and at the tips, with a few coarse 

 punctures. 



