146 



HYMENOPTERA. 



.9. MYRMECIA PILOSULA. B.M. 



Worker. Length 4^ lines. Black: covered with a fine, short, 

 silky, ashy pile ; the head quadrate, with the angles rounded, 

 longitudinally striated, the striae irregular, running into one 

 another; the prothorax with striae diverging from the centre; 

 the striae on the meso- and metathorax above are longitudinal, 

 but on the oblique truncation they are transverse ; the nodes 

 of the peduncle globose, the first rugose, and with a short thick 

 petiole. The mandibles, antennae, tibiae, tarsi, apical half of the 

 anterior femora, and tips of the intermediate and posterior pairs, 

 pale rufo-testaceous. 



Female. Length 5 lines. Of the same colour as the worker, 

 similarly pilose : the thorax broader and more coarsely sculp- 

 tured; the first node of the petiole transversely and coarsely 

 rugose, with a central longitudinal carina. 



Male. Length 3^ lines. Resembles the other sex, but has 

 the antennae, tibiae and tarsi dark obscure testaceous; it is alto- 

 gether more coarsely rugose, not distinctly striate ; the first node 

 of the petiole rugose and carinated as in the female. 



Hab. Australia; Tasmania. 



10. MYRMECIA PILIVENTRIS. 



Worker. Length 6 lines. Black : the abdomen covered with 

 pale golden pubescence ; mandibles porrect, nearly straight, 

 rounded above, longitudinally grooved beneath, somewhat ob- 

 liquely truncate at the apex, the tip slightly bent, the inner edge 

 with a few minute teeth directed backwards. The head longitu- 

 dinally striated, the thorax very coarsely so, the striation on the 

 metathorax transverse. Abdomen: the basal node coarsely 

 rugose, with a longitudinal central carina beneath, terminating 

 in a strong tooth at the base. 



Hab. Australia. (Coll. F. Smith.) 



11. MYRMECIA PICTA. B.M. 



Worker. Length 4-5 lines. Black : the mandibles and 

 face before the insertion of the antennae pale reddish-yellow ; 

 the anterior legs entirely, and the intermediate and posterior 

 femora and tibiae ferruginous, the posterior femora more or less 

 dusky ; the head and thorax opake, with a thin cinereous pile ; 

 the head substriate; the carinae between the antennae extend- 

 ing to the anterior ocellus; the posterior margin of the head 

 emarginate. The first node of the peduncle fusco-ferruginous, 

 subglobose and rugose. Abdomen slightly shining, with a thin 

 cinereous pubescence. 



