A Monograph of the Formicidae of South Africa. 263 



(5). 6. Sculpture less strong; head with only longitudinal striae; 1st node 

 higher than the 2nd, not conical, slightly flattened above. 



striata, Stitz. 

 (4). 7. Tibiae and scapes smooth ; smaller species, less than 6 mm. 



nigra, Mayr. 



(1). 8. Smaller species, less than 5 mm.; sculpture feebler and much more 



sparse ; head striated only on the cheeks. 



(10). 9. Dark black, pilosity also black ; scape extending beyond the occipital 



margin by almost one-third of its length ; mesonotum with high 



posterior lateral carinae. . . . nigemma, Arnold. 



(9). 10. Brownish, pilosity yellowish; scape extending beyond the occipital 



margin by one-quarter to one-fifth of its length ; mesonotum with 



feeble and low lateral carinae behind. . . laevior, Forel. 



M. Eumenoides, Gerstaecker. (Plate VII, figs. 87, 87a, 88, 89a, b.) 

 (Heptacondylus), Monatsb. Ak. Wiss. Berlin, p. 263, ? , 1858. 



(H. sulcatus), Mayr, Verb. Zool. Bot. Ges. Wien, vol. 12, p. 756, 



£, 1862. 



$. 6 - 5-7'7 mm. Head, thorax and petiole dark red, somewhat 

 brownish red, the nodes a little darker. Abdomen, legs and antennae 

 dark brown, the base of the abdomen a little paler. Shining, espe- 

 cially the dorsum of the epinotum ; the basal fourth of the 1st 

 abdominal segment very finely and closely punctured and subopaque. 

 Head, pro-inesonotum and dorsum of epinotum with a few strong, 

 more or less longitudinal rugae, connected by transverse anastomoses 

 (almost reticulate round the eyes). Sides of thorax faintly and longi- 

 tudinally striate ; the spaces between all the striae or rugae smooth 

 and shining. Nodes of petiole with a few feeble striae. The abdomen 

 smooth and shining. Femora very shallowlv and sparsely punctured. 

 Scapes and tibiae longitudinally striate on the upper surface. Man- 

 dibles closely and longitudinally striate. Whole body, including legs 

 and antennae, with a strong but rather sparse pilosity, consisting of 

 stout, more or less erect, blackish hairs. The flagellum has in addition 

 a sparse, decumbent pubescence, which is absent elsewhere. 



Head subcircular, a little wider behind than in front, about as long- 

 as wide, the posterior margin straight, the angles rounded. Clypeus 

 broad, the anterior margin convex. The median area has about 7 or 

 8 longitudinal raised lines (hardly carinae) ; the posterior margin, 

 between the frontal carinae, broad; frontal area indistinctly defined. 

 Frontal carinae parallel, widened and sublobate in front, extending 

 back nearly to the level of the anterior margin of the eyes. The latter 

 convex and prominent, placed behind the middle of the sides of the 

 head. Mandibles with 5 teeth, the tw r o anterior ones large and acute. 



