156 HYMENOPTERA. 



the metathorax and abdomen are slightly fuscous, the femora are 

 also more or less fuscous ; the head is oblong, slightly narrowest 

 behind, the eyes large, ovate and black. 



10. PSEUDOMYRMA MANDIBULARIS. 



Leptalea mandibularis, Spin. Mem. Accad. Torino, xiii. 68. 50. 

 Hab. Para. 



This species is described as being black, with the mandibles 

 white ; eyes large, oblong and ovate ; antennae short, thick, and 

 inserted near the mouth; the abdomen with two nodes, both 

 petiolated, the first being much smaller than the second, and 

 having a long petiole ; from these characters, it appears to belong 

 to the genus Pseudomyrma. 



11. PSEUDOMYRMA TESTACEA. 



Tetraponera testacea, Smith, Ann. fy Mag. Nat. Hist. 2nd ser. 



ix. 45 $ ; Trans. Ent. Soc. 2nd ser. iii. 10. 

 Pseudomyrma testacea, Smith, Trans.Ent.Soc. new ser. iii. 168. 10. 



Hab. South America (Napo). 



Entirely rufo-testaceous, smooth and shining; the head ob- 

 long, the sides parallel, emarginate behind ; the eyes large and 

 ovate, and, as well as the ocelli, black ; an impressed line runs 

 from the anterior ocellus to the insertion of the antennae. This 

 species is 3% lines long. 



12. PSEUDOMYRMA PERBOSCII. 



Myrmex Perboscii, Guer. Icon. Reg. Anim. iii. texte 428 $ . 

 Hab. Yucatan (Bay of Campeachy). 



This species is 4J lines long, of a reddish-yellow, with the 

 abdomen black ; the head is oblong, with the margins parallel ; 

 the thorax elongate, the wings tinted with yellow, the nervures 

 brown; the legs, abdomen and nodes of the peduncle, of the 

 same form as in the rest of the species. 



13. PSEUDOMYRMA PHYLLOPHILA. 



Worker. Length 2f lines. Obscure rufo-testaceous: the 

 head and prothorax of the brightest colour ; the antennae, face 

 anteriorly, mandibles, anterior tibiae, the tarsi and articulations 

 of the legs, pale testaceous; the antennae dusky towards the 

 apex. Abdomen ovate, pointed at the apex, covered with fine 

 silky pile ; the first node of the abdomen clavate, the petiole short 



