334 Annals of the Soutli African Museum. 



Antennae robust, third joint shorter than the first ; head rounded, 

 eyes very large, no genae to speak of, surface rugose, briefly 

 pubescent ; thorax nearly twice as long as broad, deeply and 

 regularly emarginate laterally, border of pronotutn straight with 

 the angles sharply acuminate, base also straight, slightly wider than 

 the apex, the angles still sharper than at the apex, in the centre 

 of the declivity is a small, bluntly triangular tubercle, the surface is 

 linely punctate and clothed with a decumbent flavescent pubescence; 

 the second abdominal segment is moderately finely punctate and 

 the sides are clothed from apex to base with a whitish pubescence 

 not dense enough, however, to form a patch ; the fourth segment 

 is more densely fimbriate than the third ; the pygidial area is 

 punctate at base. Legs very briefly pubescent white, spurs, 

 extremely short, whitish ; hind tibiae plurispinose. 



Length 3J mm. 



Hab. Southern Rhodesia (Bulawayo). 



A species very distinct from the other South African species of 

 Myrmilla known to me. 



MYBMILLA SHIKUELLA, sp. n. 



? . Black, with the thorax red, first abdominal segment with a 

 band of flavescent hairs on the hind border, second with two 

 parallel, slightly elongate, small patches situated a little past the 

 median part and at about an equal distance from the centre and 

 from the sides, third segment clothed with an entire band of the 

 same colour. Head wider than the piothorax, with the eyes large 

 and about equi-distant from the insertion of the antennae and from; 

 the plainly rounded posterior angles, antennal tubercles conspicuous- 

 and very sharp, surface roughly elongate punctate, briefly greyish 

 pubescent ; antennae somewhat robust, third joint three times as- 

 long as the fourth ; thorax one-fourth longer than broad, anterior 

 border slightly sloping on each side with the angles sharp, sub- 

 parallel but slightly emarginate laterally, posterior edge not wider 

 than the anterior but the hind angles somewhat rounded, and bearing 

 on the top of the declivity seven long, horizontal spines of nearly 

 the same length ; the surface is visibly striate longitudinally and 

 it is clothed with a very brief flavescent pubescence ; abdomen beset 

 with greyish and black hairs, the second, third, and fourth segments 

 plainly fimbriate with yellowish hairs, the dorsal part of all segments 

 finely and regularly punctate, but very finely strigillate on the second 

 but on the sides only, pygidial area closely striolate from the base 



