74 PROCEEDINGS OF THE NATIONAL MUSEUM tol. 75 



above and below basally ; tibiae, except spot below on anterior pair 

 and basally above on all ; and tarsi ; pale loith a tinge of yellow on the 

 labrum and on the lateral portions of the tergal fasciae. The anterior 

 part of the apical lines connecting the lateral sternal spots is tinged 

 with ferruginous. 



The flagellum is dark above, lighter below, and at the apex takes 

 on a ferruginous appearance. Segments 9, 10, and 11 are slightly 

 excavated below, and 7 and 8 are spinose. The ultimate segment is 

 slightly curved, somewhat flattened and pointed at the apex. The 

 middle femur below is beset Avith several sharp-pointed teeth that are 

 longest near the apex of the femur, Avhich on its posterior surface 

 bears a distinct longitudinal depression or gi'oove. The second 

 sternite bears a long, low, thin carinalike process that ends in a blunt 

 point. The sixth sternite is peculiar in that it bears a median tri- 

 angular swelling that can not be termed a process, since its apical 

 part slopes smoothly to the apical margin of the sternite, which 

 shows a slight median apical emargination. The seventh sternite 

 shows a prominent median carina and is distinctly notched at the 

 apex. The seventh tergite on either side bears a distinct lateral ridge 

 with an emargination producing a lateral angle and bears within this 

 angle several short spinelike hairs. The apex of the tergite is rela- 

 tively broad and roundly truncate. 



Allotype (female). — Black: labrum; mandibles, except tips; apical 

 border of clypeus; spots on frons; scape and flagellum below; anterior 

 and posterior orbits; apex of sixth tergite; sixth sternite; fasciae 

 joining lateral spots on sternites; legs except basal segments and more 

 or less of the basal part of all femora ; ferruginous. Narrow line on 

 posterior border of pronotum ; posterior part of tubercle ; narrow 

 fascia on posterior border of scutellum ; narrow fascia on metanotum ; 

 narrow abbreviated fascia on propodeum ; small spot on lateral angles 

 of propodeum; continuous fasciae on tergites 1-5: first narrowed 

 medially; second inclosing pair of dorcal blacl>*spots ; third, fourth, 

 and fifth biemarginate on anterior dorsal border and acutely sinuate 

 at mid line on posterior border; and lateral spots on sternites; jmle. 

 Traces of yellow are seen on the labrum, on the extreme lateral por- 

 tions of the tergal fasciae and on the tibiae. The sixth sternite is 

 carinate on the mid line and the sixth tergite, which is narrow and 

 rounded at the apex, is covered with si^inelike haire A'ery prominent 

 laterally at the base. 



Length 14-lG mm. Described from three specimens. The type and 

 allotype bear the label, " Deutsch Ost Af rika, Kanoga, Fr. MuUer S." 

 A second female, which I have referred to this species, bears the label, 

 " Victoria-Nyansa, I. Ukerewe, Conrads S. G." This differs from the 

 allotype in having the labrum light yellow, the abdominal fasciae 

 brighter with a creamy yellowish tinge. The ferruginous fasciae 



