A Monograph of Egyptian Dipt 'era. 21 



SYRPHINjE 



1. PAKAGUS LATR. 



Latr., Hist. Nat. d. Crust, et d. Ins., XIV. 359. DXXII, 

 (1804) et Diet. d'Hist. Nat. Deterville, XXIV. 194. (1804). 



Small thick-set, short flies of more or less dark colour, except 

 parts of the face, scutellum, abdomen and legs. 



Head rather flattened, broader than the thorax, face not 

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

 mostly or entirely yellow or ii>ale yellow. Eyes pilose with the 

 hairs often running into stripes, always touching in the male and 

 well separated in the female. Antennas slightly porrected, with 

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

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

 the joint. 



Thorax rather quadrate 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 depression 

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

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

 Ml + 2 and the median cross-vein are not parallel to the wine: 

 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 cell M2, consequently 

 Verrall states that the peculiar undulation of the turned up portion 

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

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

 tera; but the position of the radio-median cross-vein which is 



