DUKHAM DIPTEKA. 26 1 



XXXIII. 454. 

 37 (38). Arista distinctly plumed. 



S. communis, Dsv. [caesia, Mcq.] (1992) 



38(37 

 39(40 

 40(39 



41 (36 



42(43 



43 (42 

 44(45 



45(44 



46(25 

 47(48 



48(47 

 49(50 

 50(49 

 51 (52 



52(51 

 53(56 



54 (55 



55 (54 

 56(53 

 57(58 

 58(57 

 59(62 

 60(61 



61 (60 



62(59 



Arista pubescent. 



Four post-sutural bristles. (2003. S. pertnsa, Mg.) 

 Three post-sutural bristles. 



(1995. S. fratercnla, Ztt.), or (2002. S. consimilis, Fin.) 

 Abdomen without paired spots, usually with a central 



line, but never wholly unicolorous. 

 Scutellum, at least at the point, translucent yellow. 



M. tin eta, Ztt. (1980) 

 Scutellum nowhere translucent yellow. 

 Three post-sutural bristles ; X-veins distinctly brown 



clouded. (2004. ,5. fiiscata, Fin.) 



Four post-sutural bristles ; X-veins at most slightly 



tinged with yellow. (1979- M. angelica, Scop.) 



Legs wholly yellow. 

 Frontal crossed bristles present. 



(1972. Allceostyhis simplex, W.) 

 Frontal bristles absent. 



Scutellum translucent yellow. M. pagana, F. (1981) 



Scutellum not translucent yellow. 



Scutellum with a black spot on each side at the base. 



(2000. S. uliginosa, Fin.) 

 Scutellum unicolorous. 



Three post-sutural bristles. 



Arista very long haired. (M. demigrans, Ztt.) 



Arista pubescent. (i995- S. fratercnla, Ztt.) 



Four post-sutural bristles. 



Palpi yellow. M. impuncta, Fin. (1984) 



Palpi black. 



Arista distinctly plumose. 



Dorsum distinctly striped ; fore tibiae without bristles 



on the middle. -5". urbana, Mg. (1978) 



Dorsum indistinctly striped ; fore tibia? with distinct 



bristles on the middle. (S. pubescens, Stein) 



Arista pubescent. M. separata, Ztt. (1985) 



