76 



HYMENOPTERA. 



Family II. PONERID^. 



Ponerites, St. Fare/. Hym. i. 185 (1836). 

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



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

 ment more or less constricted. The females and workers armed 

 with a sting. The pupa enclosed in cocoons. 



Genus 1. ODONTOMACHUS. 



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

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



Species of Brazil. (Sp. 1-7.) 



1. Odontomachus H/EMatodes. pi. V. figs. 4-7. B.M. 

 Formica bematoda, Linn. Syst. Nat. i. 965. 1 7 ^ . 



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



Oliv. Encycl. Me'th. vi. 502. 58. 



Latr. Hist. Nat. Fourm. 192. 

 Formica maxillosa, De Geer, Ins. iii. 601. pi. 31. f. 3, 4, 5 9 



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

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

 Myrmecia hsematoda, Fabr. Syst. Piez. 425. 7. 

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

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

 Odontomachus hicmatodes, Latr. Gen. Crust, et his. iv. 128 $. 

 Odontomachus unispinosa, Latr. Gen. Crust, et Ins. iv. 128 ^ . 

 Hab. 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, aljout thirty or forty, which scam])er 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 antenna and legs being yellowish-white ; the 

 anteimte 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 slightlv 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 ; 



