221 



pronotum and scutellum seen together from above scarcely 

 longer than broad. In profile the scutellum is more convex 

 and projecting, the anterior portion of the base of the 

 epinotum descends more abruptly, and the nodiform posterior 

 enlargement is more pronounced in profile, but less pro- 

 nounced when seen from above. The nodes of the petiole 

 and postpetiole are much lower than in longiceps. 



Sculpture, colour, and pilosity much as in that species. 



Hah. — Queensland: Herberton (type locality) and Cedar 

 Creek (E. Mjoberg) ; Gayndah ; Peak Downs; Rockhampton ; 

 Kuranda and Enoggera (Wheeler). New South Wales: 

 Dorrigo (W. Heron). 



Aphaenogaster (Nystalomyrma) barbigula, sp. nov. 



PI. xxi., figs. 7 to 9 ; pi. xxii., fig. 9. 



Stenamma flschnornyrmex) lone/iceps, Forel: Rev. Suisse 

 Zool., 10, 1902, p. 439. female; Fauna S.W. Aust,, Hamb. Exped., 

 1, 1907, p. 284, two females and male. 



Aphacnocjaster (Deromyrma) longiceps, Forel: Bull. Soc. 

 Vaud. Sc. Nat., 49, 1913, p. 187, female. 



Worker. — Length, 4'5-5'5 mm. 



Head regularly-elliptical, about one and one-fifth times 

 as long as broad, not broader behind than in front, with 

 convex sides, rounded behind the eyes, and without posterior 

 corners. Occipital border feebly reflexed. Eyes moderately 

 convex. Mandibles irregularly denticulate, with three larger 

 apical teeth. Clypeus, frontal carinae, and frontal area much 

 as in longiceps; frontal groove indistinct. Antennae rather 

 long, scapes incrassated distally, extending less than one- 

 fourth their length beyond the posterior border of the head, 

 funiculi distinctly 4-jointed, all the joints shorter than in 

 longiceps. Pronotum and base of epinotum rounded and 

 convex in profile ; mesoejnnotal constriction long and pro- 

 nounced, epinotal spines reduced to small, rather acute, sub- 

 erect teeth. Petiolar node rounded, lower than in longiceps 

 or pythia. Postpetiole scarcety longer than broad, decidedly 

 broader than the petiole, in profile with abrupt" posterior 

 slope. Legs rather slender; posterior tibiae with small spurs. 



Shining; mandibles subopaque, longitudinally striate; 

 clypeus feebly and transversely rugulose ; head very smooth 

 and shining above and behind, sharply, longitudinally rugose 

 between the frontal carinae and eyes ; cheeks only with several 

 small, scattered, piligerous punctures. Thorax smooth and 

 shining, with the sides of the mesonotum and epinotum 

 punctate-rugose, the rugae being somewhat longitudinal on 



