282 HYMENOPTERA. 



terminates in a deep fossulet above ; wings hyaline, faintly clouded 

 at their apical margins, the nervures testaceous ; the two apical 

 joints of the tarsi ferruginous. Abdomen thinly covered with a 

 line thin sericeous pubescence, the three basal segments slightly 

 depressed. 



Hab. Cape of Good Hope. 



27. Larrada aterrima. 



Female. Length 4^ lines. — Deep ojjake black : the face with 

 bright silvery jjubescence ; the mesothorax with a central longi- 

 tudinal depression in front, on each side of which is an elongated 

 slightly impressed line, and also a short scratch opposite the 

 front, of the tegula;, the latter rufo-i)iceous behind ; the wings 

 smoky, the nervures black ; the metathorax very delicately trans- 

 versely striated, the sides obUquely so, and the truncation with 

 coarse transverse ridges and a central longitudinal deeply im- 

 pressed line. Abdomen : the basal segment and the apical mar- 

 gins of the segments with bright silvery fasciae, observable in 

 certain lights. 



Hab. Cape of Good Hope. (Coll. F. Smith.) 



28. Larrada pallipes. B.M. 



Male. Length 4 lines. — Black, and covered with a grey silky 

 pile ; the face densely covered with bright silvery pubescence ; 

 the palpi, mandibles and scape ferruginous. The mesothorax 

 and scutellum closely punctured; the metathorax transversely 

 rugose ; a central longitudinal carina extends to the verge of the 

 ti-uncation ; the sides of the metathorax obliquely strigose ; the 

 wings subhyaline and iridescent, the nervures and tegulae pale 

 rufo-testaceous ; the legs pale ferruginous, the coxae and tro- 

 chanters fuscous ; the apical margins of the segments of the ab- 

 domen slightly depressed. 



Hab. Africa. 



This may possibly be the male of L. ferrugineipes, but the 

 metathorax is longer and much more coarsely sculptured. 



29. Larrada punctata. 



Female. Length 3i lines. — Black : the head, the mesothorax 

 above and beneath, the scutellum and metathorax, closely and 

 finely punctured ; the sides of the latter obliquely striated, the 

 truncation transversely so; the face with fine sericeous pubes- 

 ceuce ; the mandibles ferruginous ; wings fuscous and iridescent ; 



