I 



Mr. R. E. Turner on Fossorial Ilymenoptera. 437 



joints 9 and 10 subdenticulate beneath, penultimate joint 

 concave beneath, longer than the tenth, apical joint about 

 half as long again as the penultimate, concave beneatii, blunt 

 and rather strongly curved at the apex. Fore tarsi rather 

 stout, with a strong tarsal comb, the apical joint flattened, 

 nearly as broad and less than half as long again as the 

 penultimate, with a small spine on the middle of tlie outer 

 margin ; anterior and intermediate femora not serrate ; inter- 

 mediate tibipe produced into a distinct spine at the apex. 

 Seventh dorsal segment very broad, with parallel sides on 

 the basal portion to beyond the middle, the apex obtuse; the 

 surface of the segment finely punctured, w'ith coarse punc- 

 tures intermixed near the apex. Second ventral segment 

 with a very large tubercle, which is broadly truncate at the 

 apex ; sixth ventral segment with a slightly raised, broadly 

 triangular area near the apex ; seventh broad, with a longi- 

 tudinal carina on each side ; eighth produced into a stout 

 blunt tooth. IMedian cell of the hind wing emitting only one 

 vein from the apex. 



Hah. Nyasaland, Mlanje, 2300 ft. {S. A.Neave), October. 



The apical dorsal segment is shaped somewhat as in the 

 variety of B. imgillatrix figured by Handlirsch (Sitzungsb. 

 Akad. Wiss. AVien, cii. t. v. fig. 15), but the parallel sides 

 are continued much nearer to the apex than in that figure. 

 In the antennte it aj)proache3 aJbofasciata^ Sm. { = karschii, 

 Handl.), also in the short wings, but differs in the legs and 

 ajjical abdominal segments. The three intermediate joints of 

 the fore tarsi are moderately dilated, about as broad as long, 

 nearly as much dilated as in latiiarais, Handl. 



Bemhex johnstoni^ Turn. 



Bemhex johnstoni, Turn. Ann. & Mag. Nat. Hist. (8) x. p. 372 (1912). 



J. 



This belongs to the group of B. diversipennis, not of molii, 

 to which I conipared it in the description ; it is, indeed, 

 probably only an extreme colour-variation of diversipeunis. 

 In a considerable series of that species from E. Africa tlie 

 thorax is always without yellow markings in both sexes, 

 except in one female from Harar. The yellow markings on 

 the abdomen vary much, but do not form continuous fasciae 

 as in most West-African specimens. The wings are hyaline 

 in the male, more or less strongly iuscous at the base in the 

 female in all specimens which 1 have seen. 



