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 Mutilla bitriangulifera Bischoff. 

 Tanganyika Territory : Kigoma, 2 females (R. Mayné). 



Mutilla diselena var. obscurior Bischoff. 



Tanganyika Territory : between Tabora and Kigoma (Stamper). 



Odontomutilla maynei, new species. 



Maie. — Coal black; covered with a mixture of erect, black and 

 white hairs; the fourth tergite with a noticeable admixture of the 

 two, whereas on the ultimate tergites they are ail black; the hairs 

 are strong and conspicuous on the posterior part of the scutellum; 

 the third tergite with a broad, dense, apical band of closely appressed, 

 buff pubescence which extends decidedly on the sides of the sternite. 

 Wings deeply infuscated with violaceous reflection, somewhat hya- 

 line at the extrême base. Calcaria black. 



Length : about 13 mm. 



Head seen from above but slightly produced behind the eyes; the 

 eyes being removed from the occipital margin by less than the width 

 of their posterior lobe. Latéral margin of the occiput scarcely con- 

 verging and abruptly meeting the posterior margin; the latter convex, 

 slightly prominent medially. Ocelli in an equilateral triangle, the 

 base of which is on the postocular line. Entire upper surface of head 

 coarsely and closely punctate. Antennal grooves deep, the carinae 

 margining them above less conspicuous than in O. quadrilobata 

 Bradley and Bequaert, with a prominent lobe overhanging the inser- 

 tion of the antennae. Médian portion of the clypeus elevated, forming 

 between the antennae a flat-topped prominence, which is acute 

 above, widened below; its surface roughened and hairy, but not 

 margined by cannas; below this the clypeus is transversely depressed, 

 smooth; anterior margin simple. Mandibles without external tooth, 

 bent, acute, and toothed within. Second flagellar segment approxi- 

 mately two-thirds the length of the third. Eyes large, deeply emar- 



