new Ants from Australia, 443 



Mesoepinotal constriction deep. Base of epinotum, which 

 is nearly twice as long as the declivity, is in profile rounded 

 as it rises from the suture, then flat for the rest of its 

 length. Declivity concave, separated from the base by a 

 transverse ridge ending in a point on either side. First 

 Joint of pedicel from above longer than broad, the sides 

 parallel, the node ending in front in a blunt point ; in pro- 

 file the joint is divided into two halves by the point, in 

 front of this point it is concave, beyond plane. Under- 

 neath is a blunt tooth directed forwards. Second joint 

 once and a half as wide as first, broader than long, with 

 convex sides, in profile it is higher behind, where it is 

 rounded and higher than first joint. Underneath in front 

 is a blunt tooth. 



Femora very swollen. G aster ovate. 



Back of head and thorax shining' front of head and 

 gaster mat. Mandii)les closely striate. Clypeus sub-mat, 

 with two or three strong ridges at the sides and some 

 indistinct ones in between. Head closely and evenly longi- 

 tudinally striate. On the cheeks the striee tend to become 

 coarse reticulations. There is a reticulate ground-sculpture 

 between the striae, except on the vertex and occiput, which 

 are shining between the striae. Promesonotum coarsely 

 longitudinally rugose and shining, likewise the sides. 

 First half of base of epinotum irregularly transversely 

 rugose, second half regularly so. Declivity shining. First 

 node irregularly rugose, second evenly longitudinally rugose. 

 Base of gaster with fine, longitudinal, short striae^ the rest 

 superficially reticulate. 



1 ^ . Murray River {Clark , no. 150). 



Type W. C. C. coll. 



Comes near inermis, Mayr, difi'ering in size and colour 

 and some small structural details, and also in the sculpture. 

 According to Forel's description, it also comes near odee, 

 which I have not seen. 



Meranoplus hirsutus, Mayr, race rugosa, st. n. 



^ . Length 2*8 mm. 



Comes near the race minor, Forel, from which it difl'ers 

 chiefly in the shape of the thorax. 



Entirely castaneous, petiole somewhat darker, teeth of 

 mandibles and eyes black. 



Mandibles with four teeth. Head broader than in minor 

 and proportionately broader behind. 



Promesonotum broad, much broader behind than in 



29* 



