AET. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 135 



apex of the seventh tergite is peculiar, as is shown in Figure 95. The 

 seventh sternite is narrowed and rounded at the apex and is carinate 

 on the midline. 



Length about 15 mm. This species is closely related to B. littoralis 

 Turner, with which it agrees in the character of the genitalia, the 

 antennae, the processes on the sternites, and the wings. It differs 

 in the form of the seventh tergite and particularly in the extent of its 

 maculations. It is also somewhat larger than littoralis. If it were 

 not for the great difference in the extent and in the color of the macu- 

 lations, I should be inclined to consider this individual only a variety 

 of littoralis, which, according to Turner, is a variable species. De- 

 scribed from a single male bearing the label, " S. Australien, Her- 

 mannsburg, Finke River v. Leonhardt G." 



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



BEMBIX AGRESTIS, new species 



Figures 80-82 



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

 short, broad anterior orbits; spot on either side anterior ocellus; 

 space between antennae; scape below; posterior orbits not reaching 

 vertex ; narrow line on posterior border of pronotum ; apical half of 

 tubercle; minute lateral spots on posterior border of nietanotum 

 interrupted fascia on propodeum, broadest on posterior surface ; con- 

 tinuous fasciae on tergites 1-6, the first narrow and somewhat sinu- 

 ate, second inclosing a pair of dorsal black spots, third, fourth, and 

 fifth broadly biemarginate on anterior dorsal border; median spot 

 on seventh tergite extending to apex ; lateral spots on sternites 2-6 ; 

 median spot on second sternite; femora in varying degree; tibiae, 

 except large spot below on ail ; and tarsi ; yelloicish white. 



The flagellum is pale beneath and shows no special modifications, 

 being neither spinose nor excavated. The middle femora are neither 

 serrate nor dentate. The second sternite bears a median, laterally 

 compressed tubercle whose sides are provided with numerous hairs 

 as is the surface of the sternite generally. The sixth sternite bears a 

 bluntly pointed, triangular median process and the seventh, whose 

 apical border is emarginate at midline, bears a conspicuous median 

 carina. The seventh tergite is truncate at the apex. 



The allotype (female) resembles the type very closely in its macu- 

 lations. The color is more yellowish than on the type. There is a 

 spot on side of prothorax connected with spot on tubercle; a con- 

 spicuous spot on mesopleura; spot on side of propodeum. The sixth 

 sternite is black. The sixth tergite is narrowed and rounded at the 

 apex and the sides are only slightly sinuate. On its sides are found 



