360 Annals of the South African Museum. 



Tribe MERANOPLINI, Emery. 



Including the following S. African genera : Galyptomyrmex, Emery ; 

 Meranoplus, Smith ; and Dicroapsis, Emery. 



Genus GALYPTOMYRMEX, Emery. 



Ann. Mus. Civ., Genoa, vol. 25, p. 147, 1887. 

 Eorel, Mitth. N.H. Mus., Hamburg, vol. 18, p. 50, $ , $, 1901. 



Characters. 



^ . Antennae 12-jointed, club 3-jointed, 2nd-8tb joints of flagellum 

 much wider than long. Scape thin at the base, flattened and dilated 

 over the apical two-thirds. Clypeus narrow, the median area vertically 

 truncate in front, the brow of the truncation strongly bidendate. 

 Frontal cariuae strong, with very deep and complete scrobes below. 

 Eyes small. Pro-mesonotal suture obsolete, the meso-epinotal distinct 

 Thorax stout and short, the niesonotum feebly bidendate behind, the 

 epinotum oblique, much lower than the mesonotum, also feebly biden- 

 tate. Petiole pedunculate anteriorly, both nodes transversely oval. 

 Abdomen round, the 1st segment forming the whole of the dorsal 

 surface. Pilosity partly composed of spatulate hairs. 



The above characters of the £ refer only to our single species, C. 

 Arnoldi, Eorel. 



" $ . This sex, as exemplified in C. Schraderi, Eorel, an Australian 

 species, does not differ much from the £ . The eyes are rather small, 

 the pronotum somewhat truncate iu front, the epinotum bidentate. 

 The thorax is not quite so wide as the head. The pilosity consists of 

 spatulate and clavate hairs, as in the £ . 



" g . Wings as in Meranoplus, 1 cubital and 1 discoidal cell, the 

 stigma large and round, the radial cell open. Head relatively large, 

 convex behind. Clypeus with lateral carinae, without teeth. Frontal 

 carinae of the usual form, not forming scrobes." Mayrian furrows 

 pi'esent on the mesonotum. Nodes of petiole more or less round. 



C. Arnoldi, Forel. (Plate VIII, figs. 114, 114a.) 



(Dicroaspis), Ann. Soc. Ent. Belg., vol. 57, p. 115, $, 1913. 



^ • 2 - 6 mm. Reddish-brown, the thorax and nodes darker, more 

 dark brown. Legs, antennae, and mandibles reddish-yellow. The 

 colour is somewhat masked by the pilosity, which is of an ochreous 

 colour, and consists of short clavate and spatulate hairs. The former 



