NOTES ON AFRICAN CHALCIDOIDEA — III. 



239 



not irregularly deeply honeycombed as in maiiri'pennis ; all round the spiracle, 

 between the pleural and the upper keels, the surface is roughened and raised. The 

 fused keels composing the central keel, which is continued through the metanotum, 

 are more plainly distinguishable in this species than in either of the others. 



Wings. — Fore wings (fig. 5) over 2 J times as long as broad ; length, nearly 1 -6 mm., 

 and breadth, 0"6 mm. Submarginal : marginal : radius, as 7 : 8 : 2. One bristle on 

 the submarginal ; 10 or 11 on the narrow cell below ; 9 to 10 stout bristles appearing 



Fig. 4. Tetrastichus sculpturatus, sp. n. ; a, antenna of (^ (outside) ; 



6, antenna of $ (inside). 



T. halteatus, sp. n. ; c, antenna of c^ (outside) ; d, antenna of $ (outside). 



over the edge below the marginal vein ; 8 to 9 bristles on the radius above. Alar 

 pubescence dense, coming close up to the veins and extending nearly to the origin 

 of the marginal. Hind wings 3| times as long as broad ; length, 1 -3 mm. ; breadth, 

 0*4 mm. Submarginal five-sixths of the marginal. 



Legs.— Fore legs : the anterior surface of the femora bears more bristles, only the 

 ventral two-fifths being bare ; the row of bristles at that level numbers 13-14 ; the 

 apical tibial comb is peculiar, consisting of three pustulated spines with a bristle at 

 (C2Q5) C2 



