A Monograph of Egyftian Diptera. 



SYRPHINiE 



I. PAHAGUS LATU. 



Latr.. llist. Nat, (I. Cnist. et d. Ins., XIV. 359. DXXII, 

 (1804) et Diet. d'Hist. Nat. Detérville, XXIV. 194. (1S04). 



Sniall thick-set, short Aies of more or less dark coloiir, except 

 parts of the face, scutellum, abdomen and legs. 



Head rather flattened, broader than the thorax^ face not 

 liollowed below the antennae, but produced into a knob and always 

 mostly or entirely yellow or pale yellow. Eyes pilose with the 

 liairs often running into stripes, always touching in the maie and 

 well separated in the female. Àntenn?e slightly porrected, with 

 the third joint longer than the basai two together, and dorsally 

 bearing a short, bare arista, which is inserted before the middle of 

 the joint. 



Thorax ratheT qnadrate in shape and with very simple incons- 

 picuous pubescence. Scutellum with a vestiture similar to that of 

 the thorax, sometimes entirely seneous-black and often pale at the 

 tip, or with the lower half entirely yellow. Abdomen with a 

 simple, very short pubescence, about as wide at the thorax and of 

 about equal width throughout, with a shallow transverse dépression 

 on each segment. Legs simple and rather slender. Wings very 

 nuich like that of the genus Syrphus but the turned up portion of 

 Ml + 2 and the médian cross-vein are not parallel to the wing 

 margin, and keep well away from it, and the turned up portion of 

 Ml + 2 possesses a peculiar undulation ; the radio-median cross- 

 vein is placed well before the middle of ccll M2, consequently 

 Verrall states that the i>eculiar undulation of the turned up portion 

 oî M 1 + 2 may suggest a relationship to the genus Eumerus, which 

 is also in some way connected with the small Aculeate Hymenop- 

 tera; l)ut the position of the radio-median cross-vein which is 



