AUSTRALIAN CERAPACHYINI. 231 



former distinctly in front of the middle of the head, the broader and 

 more rounded petiole ami more voluminous gaster, with less pro- 

 nounced constrictions between the segments. The sides of the 

 postpetiole are straight as in the worker. The erect hairs on both the 

 body and appendages are distinctly more abundant and more bristl\'. 



Described from six workers and two females taken by Mr. Henry 

 Hacker on Bribie Island, near Brisbane, Queensland. 



This species is easily recognized by its very small size, rounded 

 humeri and epinotal corners and the absence of marginations on the 

 pronotum and upper portion of the epinotal declivity. 



(3. Eusphinctus f Zasphinctus) turned Forel. 



(Fig. 4.) 



Sphindomyrmcv iurncri Forel, Ann. Soc. Ent. Belg. 44, 1900, p. 

 70, y ; Rev". Suisse Zool. 18, 1910, p. 21, y ; Froggatt, Agric. Gaz. 

 X. S. W.. 1905, p. 15; Emery, Gen. Insect. Ease. 118, 1911, p. 7, PI. 1, 

 Fig. 1, y . 



Worker. Length 7-8.5 mm. 



Head subrectangular, a little longer than broad, as broad in front as 

 behind, broadest through the eyes, which are moderately large and 

 convex and a little in front of the middle of the sides; occipital border 

 deeply and broadly excavated, marginate, the margin surrounding 

 the posterior corners and extending forward on the gular surface about 

 ^ the length of the head. Ocelli absent. Carinse of cheeks distinct 

 hut not dentate, running backward and inward towards the antennal 

 fovese. Mandibles rather small, subtriangular, deflected, their apical 

 margins indistinctly denticulate. Clypeus short, with straight an- 

 terior border. Frontal carinte short, erect, rounded, approximated 

 and strongly truncated behind, surrounding the antennal insertions 

 in front. Antennae rather long, 12-jointed; scapes about f as long 

 as the head; funicular joints 1 and 5-10 distinctly broader than long, 

 joints 2-4 as long as broad, terminal joint but slightly enlarged, as 

 long as the three preceding joints. Thorax less than twice as long 

 as broad, a little broader behind than in front, with rounded anterior 

 and posterior corners, marginate anterior and prosternal borders, 

 very feebly convex dorsal and slightly concave mesopleural surfaces, 

 without promesonotal or mesoepinotal sutures. The truncated sur- 

 face of the epinotum is surrounded above and on the sifles by a sharp 



