306 Annals of the South African Museum. 



and tibiae brownish. Larger than the type, 3'3-3 - 5 ram., and still 

 more resembling Xiphomyrmex Weitzaeclceri, Em., the colour and 

 pubescence being the same. The sculpture differs from that of 

 Weitzaeclceri but little, the rugae not being effaced on the thorax. 

 The epinotal spines are nearly twice as long as the interval between 

 their bases. The 1st node forms a scale, as abrupt in front as 

 behind, a little wider than thick. Otherwise like the type of Grassi" 

 Richmond, Natal. (Traegaordh.) 



T. guineense, Fab. 



Ent. Syst. II, p. 357, 5 , 1793. 



Ny lander (Myrmiea bicarianata) , Act. Soc. Fenn. II, 3, p. 1061, 



$, 1846. 



Mayr (Myrmiea Kollari), Verh. Zool. Bot. Ges. Wien, III, p. 283, 



S 1853. 



This species, whose original home was probably West Africa, has 

 spread over a large part of the Tropics in both hemispheres, and has 

 also been introduced into hot-houses in temperate countries. I have 

 no records of it having been taken in our region, but as it is almost 

 certain to be found sooner or later, I append a description of the £ • 

 It is smaller than the various races and varieties which are described 

 further on. 



^ . 3 - 5 mm. Head, thorax, and nodes bright reddish-yellow, 

 abdomen brownish-black, legs and antennae ochreous yellow, the base 

 of the 1st, and the apical margins of the remaining abdominal 

 segments yellowish. The pilosity is fairly abundant on the body, and 

 consists of long, erect, blunt, and rather thick hairs, which are some- 

 what shorter and oblique on the head. Antennae and legs with a 

 rather long, oblique, and yellowish pubescence, which is absent from 

 the body. Vertex of the head between the demi-scrobes, thorax, and 

 nodes strongly reticulate-rugose. The rugae, near the middle line of 

 the head, are emphasised longitudinally, and the meshes there and on 

 the pronotum are very wide, the spaces between the network shining 

 and fairly smooth. In some specimens the reticulations become 

 closer and less sharp on the meso- and epinotum, and even more so on 

 the 2nd node. The sides of the head and thorax are more closely 

 reticulate than elsewhere. Abdomen smooth and shining. 



Head, excluding the mandibles, nearly one-sixth longer than wide, 

 hardly narrower in front than behind, a little more convex behind the 

 eyes than in front of them, the hind margin nearly straight. Eyes 

 placed in the middle of the sides, convex, and prominent. Clypeus 



