144 P. Cameron. 



scutellum, its keels, the sides of the apical slope of the 

 median segment, the yellow going on to the pleurae, tubercles, 

 a large mark ou the base of the mesopleurae ou the lower 

 half, au irregulär mark under the hind wiugs and iuterrupted 

 bauds ou the apices of the abdominal segments, pale yellow. 

 Legs fulvous-red ; the coxae and trochanters and the 2^ 

 3i"d and 4th joints of the hinder tarsi, white 5 the hinder 

 kuees, apex of hinder tibiae and the basai and apical joints 

 of the hinder tarsi, black. Wiugs hyaline, the uervures and 

 stigma black. Q. — Length 11 mm; terebra 2 (?) mm. 



Anteunae longer thau the body, the scape beueath and 

 the llth to 16th joints white. Front and vertex smooth and 

 shining: the face closely and strongly, the clypeus less 

 strongly and more sparsely punctured. Froutal spine broad 

 at the base, the apical half much thiuuer. Mandibles pale 

 yellow, the apex black. Mesouotum closely, rugosely punctured. 

 »Scutellum sparsely punctured, the post-scutellum smooth. 

 Metanotum behind the keel obscurely puuctured; the depressed 

 middle smooth bordered laterally and obliqueiy; the rest of 

 the metanotum is closely rugosely, longitudiually striated, 

 almost reticulated, the basai keel is distinct aud rouudly 

 curved backwards, the apical is interrupted iu the centre. 

 Mesopleurae closely longitudinally striated, except at the base 

 below ; the meta- closely, rugosely punctured. Post-petiole 

 distinctly, but not closely, punctured, except in the centre ; 

 the 2 n( A and 3i'd segments closely puuctured; the gastrocoeli 

 and the space between them smooth. 



The areolet is small aud almost square ; the 2 n( l trans- 

 verse cubital uervure is not much faiuter than the l st ; the 

 transverse basai nervure is received shortly behind the trans- 

 verse basai. 



Cornes uear to S. annulipes Cam. which may by kuown 

 from it by the hinder femora having the apical half black, 

 as hâve also the tibiae, their basal half and the tarsi being 

 yellowish. 



