86 Annals of the South African Museum. 



Pachycondyla Krilgeri. From the very small size of the eyes in 

 the $ sex, I am inclined to think that this ant leads an almost 

 entirely subterranean existence. The presence of the dead £ £ 

 on the rubbish-heaps of other ants is doubtless due to accidental 

 intrusions into the galleries of the latter. 



Bulawayo, 1 £ , 1 ? . Shiloh, S. Ehodesia, 1 £ . 



(S.A.M., E.M., G.A. colls.) 



P. MANDIBULARS, Smith. 



Cat. Hymen. Brit. Mus., vol. 6, p. 101, $ <? , 1858. 



Var. major, Forel (= ergatoid 5 ). 

 Mittl. Schweiz. Ent. Ges., vol. 9, p. 11, 1894. 

 $ . 14'5-16"5 mm. Black; flagellum, mandibles, outer angles of 

 frontal carinae and tarsi piceous ; apices of all the femora and tibiae 

 castaneous ; 2nd-5th abdominal segments at their extreme apical 

 margins pale brown. Legs with a sparse and coarse golden pubes- 

 cence, antennae with a close and finer pubescence. Anterior margin 

 of clypeus and masticatory margin of mandibles with a few long 

 golden-brown hairs. The margins of the abdominal segments, except 

 the 1st, with a few short golden hairs. The rest of the body 

 without pilosity or pubescence. Head, mandibles, scape and 

 abdomen very shining. Head evenly and sharply punctured, the 

 punctures being larger at the sides. Abdomen sparsely, evenly and 

 finely punctured. Thorax duller than the head or abdomen, more 

 closely and strongly punctured, the space between the punctures 

 very finely striate. Node shining and as coarsely punctured as the 

 thorax. Head, excluding mandibles, almost square, posterior angles 

 rounded, posterior margin arcuately emarginate. The antennae 

 reach back as far as the middle of the epinotum. Pronotum as long 

 as the mesonotum, slightly flattened above, rounded at the sides and 

 in front, with a central longitudinal impression broken in the 

 middle. The scutellar region is slightly indicated by a shallow 

 impression at the sides and behind. Dorsum of epinotum nearly 

 as long as the mesonotum and with a feeble median longitudinal 

 groove ; declivity shining and microscopically punctured, the lateral 

 margins raised into somewhat tumid ridges. Node of petiole convex 

 from side to side in front, and above, the sides moderately convex, 

 vertically truncate behind and nearly so in front, posterior angles 

 fairly sharp but slightly rounded. Ventral lamella produced anteriorly 

 into a wide angle. 



