94 



R. E. TURNER. 



second joint of the flagellum short, equal in length to the third, less than twice as long 

 as the first. Thorax punctured-rugose, distinctly longer than the greatest breadth, 

 a little broader at the apex than at the base ; the sides straight, not rounded ; 

 pleurae finely punctured ; the posterior slope of the thorax abrupt, the surface- 

 coarsely longitudinally rugose ; scutellar tubercle distinct. Abdomen sessile ; 

 the first segment very small and sunk below the level of the second ; the second 

 dorsal segment very closely and not finely punctured, longer than the greatest breadth, 

 the sides slightly convex, a large patch of whitish pubescence slightly tinged with 

 fulvous at the base, and a narrow band of the same at the apex of both the second and 

 third dorsal segments. Sixth dorsal segment convex, without a pygidial area. 



Fig. 1. Mutilla benefactrix, sp. n., ?. 



Carina of the first ventral segment very low ; second ventral segment rather coarsely 

 punctured, and sparsely clothed with long whitish hairs. Hind tibiae with four very 

 slender spines on the outer margin. The sides of the posterior slope of the median 

 segment very finely serrate. 



(^. Head as broad as the thorax, finely and very closely punctured, covered with 

 long greyish pubescence, a distinct sulcus running from the anterior ocellus to the base 

 of the antennae. Posterior ocelli near together, very little further from each other 

 than from the anterior ocellus ; eyes deeply emarginate. Antennal tubercles well 

 developed ; third joint of the flagellum as long as the first and second combined. 



