ART. 5 GP:NERIC revision of the FOSSORIAL wasps PARKER 79 



on fifth tergite is interrupted at midline; the spots on the sides of 

 the thorax and propodeuni are better developed; and the color in 

 general is slightly more yellowish. 



The wings on both sexes are hyaline and relatively long. The 

 pubescence is short, white and sparse. The disk of the second sternite 

 of the female is shining and bears numerous coarse punctures. On 

 three of the female paratypes the fascia on the fifth tergite is con- 

 tinuous, and on two the scutum bears only the transverse posterior 

 discalmark. On some the fascia on the third tergite incloses a pair 

 of black discal marks. 



Length 15 mm. Described from two males and five females from 

 Africa. These specimens bear labels as follows : Type and allotype, 

 '• Neu-Kamerun, No. 15o-G7, Tessmann S. G." ; male paratype, " Belg. 

 Kongo, Duma, Ubanga-Dist., Dr. H. Schubotz leg., 20, X. 1910."; 

 two females paratypes, the label, "Bosun, 545, 22.4.14, Tessmann."; 

 another, the label, '' Kamerun, Tsad-See, Garua, 21. VIII. 1909. 

 Riggenbach S. G."; and the fourth, the label, " Kamerun, Schafer 

 S. G." 



Tyfe. — In the Zoologisches Museum der Universitat, Berlin. 



BEMBIX OPIKABILIS. new species 

 Figures 14&-152 



Type (male). — Black: labrum; mandibles, except tips; clypeus, 

 except small pair of black spots; space between antennae extending 

 upward; pair of spots near anterior ocellus; scape below; anterior 

 orbits shortened above; narrow posterior orbits; narrow posterioi- 

 border of pronotum and side of prothorax, except large irregular black 

 spot extending into tubercle ; narrow lateral line on scutum above base 

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

 fascia on metanotum; large posterior spot and narrow anterior verti- 

 cal line on side of propodeuni; spot on metapleura; long vertical 

 spot on mesopleura; broad continuous fasciae on tergites 1-6, first 

 narrowed medially, second inclosing pair of black spots, third almost 

 completel}^ inclosing pair of black spots, the others biemarginate on 

 anterior border and all fasciae to a greater or less degree sinuate on 

 posterior median border ; lateral spots on sternites 2-6 ; femora, except 

 spot at base below and line above on all ; tibiae, save line above and 

 below on all; and tarsi; pale or light yellow. The labrum, the lateral 

 spots of thorax and propodeuni, the lateral sternal spots, and the legs 

 show a preponderance of yellow. 



The flagellum is black above, light below, the ultimate segment 

 becoming ferruginous at the apex. Segments 6, 7, and 8 are spinose 

 below, but the spines are not conspicuous; segment 5 is prominent 

 below but not spinose. Segments 9-11 are slightly excavated below 



