Aculeate Hymen optera in Oxfoi^d Museum. 539 



white. Abdomen subsessile as long as the head and thorax united 

 closely punctured above ; ventral carina of basal segment fl-ell 

 marked, truncate posteriorly ; 6th segment convex without a 

 pygidial area. 

 Length 5 7 mm. 



Described from a single example. 



23. MUTILLA LOANGWANA, form n. 



Rhodesia : Loangwa District, Petauke 2400 ft. : April 

 1, 1905 {S. A. Ncavc). 



^ . Black ; the third and succeeding segments of the abdomen 

 very dark ferruginous red ; wings dark shining purple. Head not 

 so wide as the thorax, not much developed behind the eyes ; with 

 somewhat sparse long black hairs on the vertex, front and underside ; 

 mandibles large and powerful, smooth and shining, armed with a 

 small tooth medially on their edges, apex acute ; clypeus slightly 

 convex, smooth and shining, anteriorly widely emarginate ; antennae 

 comparatively short and stout, scape punctured and clothed with 

 short hairs, flagellum with the 2iid, 3rd and 4th joints subequal ; 

 front above the antennae, vertex and sides of the head coarsely 

 punctured, the sculpturing obscured by long hairs ; ocelli not pro- 

 minent ; eyes rather small neatly triangularly emai'ginate on their 

 inner orbits. Thorax broad and massive, very coarsely punctured 

 and somewhat thickly covered with long black hairs ; pronotum 

 very short, posteriorly widely arched ; mesonotum sliglitly convex, 

 with six longitudinal carinae, none of which reach the anterior 

 margin, the medial four in pairs with a deep groove Ijetween each 

 pair ; scutellum highly conical, divided by a deep smooth excavation 

 from the mesonotuui, median segment remarkably massive and 

 broad, broader than long, very coarsely cribrate, apically truncate, 

 two short longitudinal carinae from base down the middle ending 

 in a loop before attaining the edge of the truncation ; sides of the 

 median segment sharply defined and carinate. Wings broad ; fore- 

 wing with three cubital cells ; tegulae black, rounded, convex, covered 

 with more or less arcuate or curved fine striae. Legs black ; inter- 

 mediate and posterior tibiae thickly clothed with long black hair. 

 Abdomen : sessile, massive ; basal segment more or less cupuliform, 

 closely punctured, and distinctly subapically constricted by a broad 

 but shallow sulcation, entirely clotlied with long black hairs, 

 beneath with a short straight highly raised wedge-shaped carina ; 

 second segment smooth shining, remotely and finely punctured 

 above, beneath witli large scattered punctures, iringed along upper 



