I 



nerc Species of African Diploptera. 453 



as wide at ajjcx as the head. Front and clypeus covered 

 witli dense silvery |)nbescence, especially conspicuous on base 

 of clypeus and in the sinus of t!;e eyes. 



Punctured; head, thorax, and abdominal segments 1,2 

 rather coarsely, the median segment and abdominal seg- 

 ments 3-G more finely. 



Length 8| mm. 



Htib. Lower Luangwa River, N.E. Rhodesia, Sept. 1910, 

 1600-1800 ft. (S. A. Ntuve), and Bulawavo, Aug. 1909 

 {E. a Chubb) ; 1 c? . 



Api)ears to come nearest to L."^ macrostylas, Kohl, but 

 differs in the neuration and colour of the legs. 



The male has the clypeus entirely yellow. 



This species was presented by the Entomological Research 

 Committee (Tropical Africa). 



Lahus cafra, sp. n. 



Niger ; abdominis segmentorum 1, 2 margine postico flavis ; pcdi- 

 hus ferrugineis, tlavo variegatis ; alis fusco-hyalinis, costa ccllu- 

 laque radiali infuscatis. 



? . Black ; scape beneath, clypeus at the base and two 

 minute spots at apex, a small spot in the sinus of each eye, 

 a spot between the base of the antennseand behind the eyes, 

 a short interrupted line on the anterior margin of the pro- 

 notum, a line on the post^cutellum, narrow apical fascise on 

 abdominal tergite 1, and abdominal tergite and steruite 1 

 and 2, pale yellow. Tibiae above pale yellow. 



Mandibles except the base, tegulae, and legs ferruginous 

 red. 



Wings hyaline, darker along the costa and in radial cell. 



Head broad, as broad as thorax at tegulse, clypeus as 

 broad as long, narrowly produced towards apex; thorax 

 massive ; pi'ouotum truncate anteriorly, widening towards 

 tegulae, the lateral angles of the truncation acute, median 

 segment rounded dorsally, gradually sloping j)osteriorly. 



Petiole robust, equal in length to the mesonotum, nar- 

 rowest and subtruncate at base, gradually widening to apex, 

 the base armed atjove with an acute spine ; second abdominal 

 segment cup-shaped, somewhat elongate. 



Head, thorax, and abdominal segments 1-3 covered with 

 deep granular punctures, median segment and terminal 

 abdominal segments very finely punctured. 



The whole insect covered with short grey pubescence, 

 most conspicuous on clypeus, pleurae, and abdomen. 



Length 8^ mm. 



Hab. Zulii ; 1 ? . 



