HYMENOPTERA. 3!) 



l.JO. Formica testaceipes. B.M. 



Worker. Length 4 lines. — Shining black : the legs flavo-tcs- 

 taceous, the flagellum testaceous ; the ])osterior angles of the 

 head, two indistinct macula; on the prothorax above, and also 

 the disk of the metathorax, ferruginous. The head deeply 

 emarginate behind, very smooth and shining; the anterior mar- 

 gin of the clypeus widely emarginate. Thorax smooth, anteriorly 

 rounded, posteriorly com])ressed. Abdomen ovate ; the scale of 

 the ])eduncle ovate and notched above. 



Hab. Australia (King George's Sound). 



131. Formica piliventris. B.M. 



Worker. Length 5^ lines. — Very variable in colour: head 

 obscurely black ; thorax, legs and abdomen black, or with the 

 head and the thorax obscurely red ; sometimes black with only 

 the legs red. Head large, much wider than the thorax, the man- 

 dibles w ith coarse longitudinal irregular striie ; the clypeus sub- 

 carinate ; the head and thorax very delicately shagreened ; the 

 thorax rounded in front, much coaipresscd behind, with the 

 metathorax obliquely tnuicated. Abdomen obscurely cupreous 

 and clothed with a short ])ale golden jmbescence ; the scale 

 narrow, incrassate, narrowed to the ui)per margin, which is very 

 faintly notched. 



Hab. South Australia. 



132. Formica aurocincta. B.M. 



Worker. Length 4^ lines. — Head, antennic, thorax, legs and 

 scale, ferruginous; abdomen black, the apical margins of the 

 segments of a semi-trans])arent golden colour. Head wider 

 than the thorax, subquadrate, the sides nearly parallel ; mandi- 

 bles black, stout, and furnished with hve or six acute teeth ; the 

 clypeus blackish. Thorax rounded in front, narrowed poste- 

 riorly, and with a deep strangulation at the base of the metatho- 

 rax ; legs elongate. Abdomen ovate ; the scale of the peduncle 

 quadrate and incrassate, obtuse above. 



Hab. Adelaide. 



L33. Formica, ephippium. 



Worker. Length 3 lines. — Black : the pro- and mesothorax 

 ferruginous above. Head oblong-quadrate, slightly narrowed 

 towards the mouth; the eyes placed high on the sides of the head; 

 the antennae and mandibles ferruginous ; the scape more or less 



