ADAMS: DIPTERA APRICANA. 171 



SAPROMYZID^. 

 Physogenua. 



( Macquart, Dipt. Exot., Suppl. iii, 60; 1851.) 



Physogenua bimaculata, n. sp. 



Male: Head and members yellow, shining; front broader 

 than one eye, sides parallel, two fronto-orbitals on each side, 

 two verticals, and a pair of small bristles behind the ocelli, 

 ocellar bristles absent; face broad, in profile very similar to 

 P. nigra Will., but a little more rounded, and the clypeus not 

 so prominent, three small hairs on each side ; third antennal 

 joint elongate-oval, arista nearly equally pubescent on both 

 sides ; cheeks broad, bearing several black, bristly hairs. 

 Mesonotum reddish yellow, shining, one humeral bristle, two 

 posthumeral, one presutural, two supraalar, one postalar, three 

 in each outer row of dorsocentrals, two in the two central 

 rows, and a pair of prescutellar bristles ; scutellum with four 

 bristles, and two black spots on under side ; pleurse yellow, 

 one mesopleural and two sternopleural bristles present ; hal- 

 teres and legs uniformly yellow, preapical bristles of- tibise 

 rather strong. Abdomen obscure yellow. Wings hyaline, a 

 small spot at tip of first vein, costa terminates at tip of fourth 

 vein, its third section one-third as long as the second, and 

 nearly as long as the penultimate section of the fourth vein. 

 Length, 3.7 mm. 



One specimen ; April. 



Sapromyza. 



(Fallen, Ortalida; ; 1820.) 



Sapromyza africana, n. sp. 



Male : Front as broad as one eye, sides parallel, yellow, with 

 a U-shaped mark whose base is at the ocelli and its arms to- 

 ward the antenna^, two fronto-orbitals, two verticals, the 

 ocellar and a pair of small postocellar bristles present ; face 

 nearly straight in profile, the median carina indistinct, just 

 below the antennae, on sides opposite them, and the oral mar- 

 gin black, with three small bristly hairs on each side ; antennae 

 two-thirds as long as the face, brownish yellow, third joint 

 dark brown on outer side, elongate-oval, nearly twice as long 

 as broad, arista nearly equally plumose on upper and lower 

 sides ; proboscis yellow, tinged with brown ; cheeks and occi- 

 put yellow. Thorax opaque brown ; mesonotum laterally, and 



