76 HYMENOPTERA. 



Family II. PONERID^l. 



Ponerites, St. Faro. Hym. i. 185 (18.36). 

 Poneridse, Smith, Cat. Brit. Hym. p. 6 (1851). 



The peduncle of the abdomen with a single node, the first seg- 

 ment more or less constricted. The females and workers armed 

 with a sting. The pupae enclosed in cocoons. 



Genus 1. ODONTOMACHUS. 



Formica, pt., Linn. Syst. Nat. i. 965 (1766). 

 Odontomachus, Latr. Gen. Crust, et Ins. iv. 128 (1804). 



Species of Brazil. (Sp. I-/..) 



1. ODONTOMACHUS H^MATODES. PI. V. figs. 4-/. B.M. 

 Formica hematoda, Linn. Syst. Nat. i. ,965 17 ? 



Fabr. Syst. Ent. 395. 26; Ent. Syst. ii. 364. 29. 



Oliv. Encycl. Meth. vi. 502. 58. 



Latr. Hist. Nat. Fourm. 192. 

 Formica maxillosa, De Geer, Ins. iii. 601. pi. 31. f. 3, 4, 5 J . 



Oliv. Encycl. Meth. vi. 502. 59. 

 Formica unispinosa, Fabr. Ent. Syst. ii. 359. 39. 

 Myrmecia haematoda, Fabr. Syst. Piez. 425. 7- 

 Formica unispinosa, Latr. Hist. Nat. Fourm. 193 $ . 

 Myrmecia unispinosa, Fabr. Syst. Piez. 423. 1. 

 Odontomachus haematodes, Latr. Gen. Crust, et Ins. iv. 128 $ . 

 Odontomachus unispinosa, Latr. Gen. Crust, et Ins. iv. 128 <J . 



Hub. Brazil (Para, Villa Nova); Cayenne. 



The sexes of this species have been received from Mr. H. W. 

 Bates, who took them from the same nest ; in a note on the 

 species he says : " Colonies of this insect are found beneath 

 fallen leaves in the shade of trees ; their communities consist of 

 a few individuals, about thirty or forty, which scamper off with 

 their pupae on being disturbed." They vary in colour, some of 

 the workers having the head, thorax and legs pale testaceous. 



The male is about 3 lines in length, entirely of a pale ochra- 

 ceous colour, the antennae and legs being yellowish-white ; the 

 antennas are nearly as long as the body, the wings clear hyaline, 

 the nervures colourless, the stigma dark brown ; the node of the 

 abdomen is conical and blunt at the apex, the abdomen elongate- 

 ovate, with the margins of the segments slightly depressed. 



Mr. Bates says, " On turning over a rotten branch of a tree 

 lying on the ground, I found a small colony of this species ; 



