08 SYHPHTD.E. 



second vvitli a broad black band, which does not reach the hind 

 border, is dilated fowards, and ba's on each side a yellowish spot ; 

 third entirely red, with a small black basal spot ; fourth red ; 

 genitalia and venter shining dark red ; the hair is long, yellowish 

 or reddish. In the female the colouring of the abdomen seems to 

 be variable ; in the type it is very like that of the male, the black 

 stripe of the second segment being dilated on the hind border ; 

 most of the other specimens have the band of the second segment 

 extended to the sides towards the hind border, the third and fourth 

 similarly marked, and the fifth entirely black. Legs black, with the 

 base of the tibiae and tarsi more or less yellow, the middle tibiae of 

 the female often entirely yellow. Hind femora equally thickened 

 in both sexes, those of the male simple, without the basal brush ; 

 hind tibiae simple, without a tubercle ; middle tibiae of the male 

 with a posterior apical tuft composed of 5-7 strong erect hairs. 

 Wings more or less darkened, with very characteristic strong 

 bluish reflexions ; veins black to the base ; kink in the third dee]) 

 and narrow ; lower corner of the discal cell with a short but strong 

 stump. 



Type c? from Entebbe, Uganda, 1-21. ix. 1911 (S. A. Neave\ 

 and an additional specimen of smaller size from Obuasi, Ashanti, 

 20. v. 1907 (Dr. W. M. Graham) ; 1ype. $ and an additional 

 specimen, viii. 1906, same locality and collector ; four other speci- 

 mens of the variety with the apex of the abdomen black, April to 

 August, same locality and collector. 



104. H. (Mesembrius) morio, sp. n. 



$ . Length of the body 12-13 mm. 



Possibly only a dark variety of the preceding ; distinguish by 

 its entirely black scutellum and abdomen. 



Head and antennae as in M. cyaniprnnis, but the basal joints 

 and the lunula are somewhat yellowish. The thorax is very like, 

 but the pleurae are darker and with darker pubescence. Abdomen 

 entirely black, shining, even on the belly ; second segment with a 

 dull black pattern of the usual shape. Legs as in the preceding 

 species ; also the wings, which are even more infuscated towards 

 the middle and more blue. 



Type 5 and an additional specimen from Nguelo, Usamhara, 

 German East Africa. 



Genus 18. MALLOTA, Meigen (1822). 



I here employ this genus in its widest sense, placing in it 

 Helopliilus extremus, Loew, and my species, M. (enigma. It 

 differs from Mesembrius in having the eyes densely pilose and the 

 face concave below the antennae, with a distinct tubercle ; and from 

 Protylocera by the hairy eyes and the open marginal cell. The 

 single kuown male has the eyes separated. 



