168 Mr. Smith's Descriptions 



In 1852 I published a paper on some Indian Hijmcnoptera in 

 the Annals and Magazine of Natural History, in which was de- 

 scribed and figured a new genus of ants, Telraponera. At that 

 time I was only acquainted with two species, Telraponera atrata, 

 from India, and T. teslacea, from South America, the latter de- 

 scribed in a note ; these insects, both females, were remarkable 

 for liaving an elongated head, nearly as long as the thorax, having 

 the sides parallel; these insects prove to be females of the genus 

 Pseudomyrma. In the British Museum are workers of a species 

 of the genus from India, probably the same species as the female 

 described in the Annals. 



In order to render the present communication as complete as 

 possible on the South American species of Pseudomyrma, I add 

 the description of the species described in the Annals. 



Sp. 10. Pseudomyrma testacea. 



Telraponera testacea. Smith, Ann. and Mag. Nat. Hist., 2nd 

 Ser. ix. 45. 



fewa/e. — Length 3^ lines. Testaceous, smooth and shining; 

 the head elongate, truncate behind, slightly emarginate at the 

 vertex ; a shallow impressed line running from the anterior 

 stemma to the insertion of the antennae, where it terminates in a 

 deep sulcation, carinate at its sides ; the eyes black, and elongate- 

 ovate ; the mandibles ferruginous, roughly channelled longitu- 

 dinally, with irregular striations, the teeth l)lack. Thorax elon- 

 gate-ovate, the pro- and metathorax rounded, the nieso-thorax 

 fusco-testaceoiis above ; the whole very smooth and shining. 

 Abdomen : the basal segment clavate, the second globose, the 

 third slightly constricted, the whole very smooth and shining. 



Hab. South America (Napo). 



In the British Museum. 



Sp. 1 1 . Pseudomyrma cephalica, n. s. 

 Female. — Length 3 lines. Pale yellow testaceous, very smooth 

 and shining ; the head thrice as long as broad, the sides parallel, 

 the eyes elongate-ovate; the mandibles black at their tips; the 

 posterior margin of the vertex slightly emarginate. Thorax 

 narrower than the head, elongate, rounded in front and behind ; a 

 minute black spot at the insertion of the wings, which are hyaline 

 and beautifully iridescent ; the femora broad and compressed. 

 Abdomen petiolate, the petiole of nearly equal width throughout, 

 or very slightly widest towards the apex ; the second segment 



