A Monograph of the Formicidae of South Africa. 339 



Second node wider than the 1st, twice as long as wide, not longer 

 than the 1st, a little narrower behind than in front. 



$ . 3 - 8 mm. (hitherto undescribed) . Dark yellowish-brown, the 

 head somewhat reddish, the legs and antennae paler than the body, the 

 sides of the mesonotum in front dark brown. Pilosity and pubescence 

 as in the $ . Sculpture similar to that of the $ , but the punctura- 

 tion all over is a little stronger, and the longitudinal striae on the 

 head are sharper. The base of the 1st abdominal segment is closely 

 and very finely punctured, rather dull. The eyes are large, occupying 

 about one-quarter of the sides of the head ; there is a black spot 

 behind each of the three ocelli. Mesonotum rounded in front, flat 

 behind, the pro-mesonotal suture arcuate. The sides of the meso- 

 notum and scutellum sparsely striate. Dorsum of epinotum wider 

 than long, the declivity nearly vertical. The petiole is similar to that 

 of the $ , but the nodes are shorter (thinner) . Wings slightly 

 yellowish, the nervures dirty yellow. 



The smaller sized £ ^, 2 '2 mm., and the 9 were taken in an 

 independent nest under a stone ; except in size, they do not appear 

 to differ from the larger form. The latter was taken in nests made 

 in the walls of the galleries of Platythyrea lamellosa-rhodesiana., and 

 also of Opthalmopone Berthoudi 



Shiloh and Bulawayo, S. Rhodesia. (S.A.M., R.M., Gr.A. colls.) 



T. Constanciae, ii. sp. (Plate VII, figs. 94, 94a.) 



^ . 3"3-3"6 mm. Black ; mandibles, antennae, and tarsi reddish- 

 yellow, femora and tibiae yellowish-brown in the middle, reddish- 

 yellow at their base and apex. Densely clothed all over, except on 

 the tarsi and flagellum, with fairly long, erect, and whitish hairs, 

 which are distinctly trifid, not hiding the sculpture. Abdomen and 

 legs shining, the rest of the body moderately shining between the 

 reticulations. Head strongly and longitudinally rugose, also some- 

 what reticulate, owing to the presence of feebler transverse anas- 

 tomoses. Thorax and 1st node of petiole strongly reticulate, the 

 meshes rather wide, especially on the epinotum ; 2nd node less strongly 

 and less distinctly reticulate. Abdomen smooth. 



Head a little longer than wide, a little narrower in front than 

 behind, the posterior margin straight, the posterior angles strongly 

 rounded. Mandibles slightly shining, feebly striate and sparsely 

 punctured, armed with distinct teeth in front, indistinctly dentate 

 behind. Clypeus with a median carinula and 3 or 4 longitudinal 

 raised lines on each side of it, the anterior margin straight. Frontal 

 area obsolete, frontal sulcus replaced by a raised line. The frontal 



