Aculeate Hymenoptcra in Oxford Musetini. 547 



identical so far as can be seen (the specimen is much 

 rubbed) witli % 0. angulata. However, it is quite possibly 

 distinct or perliaps it is the % of the next form, 0. allenata. 



41. Odontomutilla alienata, form n. 

 Natal or 0. R. Colony $ 1894-99 (F. N. Broion). 



^ . Black, the pro- and mesouotum, the upper half of the pro- and 

 mesopleurae, the scutellum and postscuteUum red ; the head, thorax 

 legs and base and sides of the abdomen covered with short erect 

 black hairs ; the abdomen with a transverse broadly interrupted 

 narrow pubescent white band on the apical margins of the 1st and 

 3rd segments ; wings fuscous, tegulae yellowish red. Head not so 

 broad as the thorax in front, transverse ; mandibles acuminate at apex 

 with a preapical blunt tooth on the inner margin, antennae stout, 

 1st and 2ud joints of the flagellum short subequal, 3rd joint mucli 

 longer than the 2nd ; eyes oval, deeply emarginate, head behind 

 the eyes not much developed, rounded. Thorax short and broad, 

 truncate anteriorly ; scutellum broad flat, the lateral edges recurved, 

 pointed, almost dentate posteriorly ; median segment short and 

 sloping with very large conical lateral projections, one on each side 

 posteriorly ; tegulae large, their apical edges recurved ; forewings 

 with two cubital cells and one recurrent nervure ; legs stout with a 

 double row of long spines on the intermediate and posterior tibiae. 

 Abdomen sessile, about as long as the head and thorax united, basal 

 segment short, its ventral carina deep, bi-indented. Head and 

 thorax coarsely cribrately punctured, the punctures deeper and 

 coarser on the mesonotum posteriorly and on the scutellum, median 

 segment coarsely reticulate, the reticulations very wide ; abdomen 

 shining, coarsely punctured except on the middle and apical 

 margins of the segments which are smooth and highly polished. 



Length ^ 13. Exp. 21 mm. 



This form very closely resembles the $ of 0. angulata, 

 Smith, from which, however, it can be distinguished by the 

 form of the median segment, which is much shorter than 

 in 0. angulata, the posteriorly produced lateral angles 

 more massive and situated lower down ; in 0. angulata 

 the pronotum is red only along the upper edge, in the 

 present form it is red throughout ; the wings in angulata 

 are fusco-hyaline, in alienata very much darker with a 

 purple effulgence. 



Described from a single specimen of which the South 

 African locality is unfortunately doubtful. 



