94 HYMENOPTERA. 



the clypeus, mouth, ami antennae, reddish-yellow ; the ocelli 

 very large and projecting. Thorax oblong-ovate, with a loose, 

 downy pubescence ; wings hyaline, the nervures pale testaceous, 

 the stigma fuscous. The scale incrassate, rounded in front and 

 truncate behind. Abdomen oblong, with a strangulation be- 

 tween the first and second segments. 



Hob. Australia (Macintyre River). 



In the Museum Collection are two specimens of this insect ; 

 one has a short nervure emanating from the middle of the second 

 transverso-medial nervure towards the apex of the wing; in 

 other respects they exhibit no material difference. 



39. PONERA METALLICA. PL VI. figs. 17, 18. B.M. 



Female. Length 3-J- lines. Head, thorax and abdomen of 

 various metallic colours ; the head usually green behind the eyes, 

 in front ferruginous, with a purple tint more or less obvious be- 

 tween those colours ; the antennae ferruginous ; eyes ovate and 

 prominent ; the head deeply emarginate posteriorly ; the head, 

 thorax, and node of the abdomen rugose, being covered with 

 large, deep, confluent punctures ; the basal segment of the abdo- 

 men with transverse curved striae. Thorax: the colour usually 

 greenish; wings subhyaline, the nervures testaceous; the legs 

 ferruginous. Abdomen purple, the apex ferruginous. 



Worker. This sex only differs in having the thorax more com- 

 pressed and elongate, and in having the abdomen frequently cf 

 a green tint. 



Hab. Australia (Adelaide). 



Species of South America. (Sp. 40-58.) 



40. PONERA TARSATA. PL VI. figs. 15, 16. 



Formica tarsata, Fabr. Ent. Syst. Supp. 280. 38 ; Syst. Piez. 

 408. 53. 



Latr. Hist. Nat. Fourm. 200. pi. vn. f. 44. A. $ , B ? . 



Halid. Trans. Linn. Soc. xvii. (1837). 

 Ponera tarsata, St. Farg. Hym. i. 194. 7. 



Hab. South America ; Demerara ; Brazil ; Para. 



Fabricius appears to be in error in giving the habitat Senegal 

 to this species in the Supplement to the ' Entomologia Systema- 

 tica,' and it is repeated in the ' Sy sterna Piezatoruin.' I think 

 there can be no doubt that the figure in Latreille's ( Fourmis ' 

 represents the South American species ; and Fabricius quotes the 

 figure as representing his F. tarsata. Be this as it may, the 

 more minute description of Latreille is certainly that of the South 

 American species. 



