40 H. C. EFFLATOUN. 



downwards; then follow two corrugations without spines, and 

 hereafter the same arrangement is repeated; these segments are 

 each devided into four corrugations and the spines are placed on 

 the two middle ones; on 'the first abdominal segment and on the 

 meso'and metathoracal segments these are six spines on each on 

 one corrugation, and on the first abdominal segment also three 

 at the side. At the posterior end the body terminates below with a 

 somewhat cushion-shaped part, and above it is a cavity in which 

 the brown posterior spiracles Lie close together, but not on any 

 process; each spiracle shows three slits; the anterior spiracles are 

 small, placed above the prothoracal segment on each side. The larva 

 is green with a yellow or whitish-yellow line along the dorsum and 

 a narrower and sometimes less distinct line along each side. The 

 pupa is elongated ovate, broad and rounded in front, not much 

 tapering behind ; it has the same spines or hairs as the larva; the 

 posterior end is bent a little downwards and above it are the pos- 

 terior spiracles in the same cavity as in the larva. The pupa is at 

 first green, later on it becomes more brown and more pellucid, 

 and the enclosed fly is then distinctly seen through the puparium. 

 The length of the pupa is about 9 mm. The pupa rests attached 

 with the posterior end to some leaf or stalk, but Martelli records 

 that at time of pupation the larva leaves the plant and goes 2 3 

 cm. into the earth and pupates there. According to Martelli the 

 eggs are elliptical in shape, 1.13-1.26 mm. long, of milk-white 

 colour, with the shell ornamented; they are deposited singly on 

 laws with Aphids; the same author gives interesting notes about 

 the copulation and tells that the female flies with the male on the 

 dorsum to a secure place; he gives the duration of the copulation 

 as about three hours." 



TABLE OF EGYPTIAN SPECIES. 



2 (1) Yellow bands on sides of thorax present ; 

 abdominal lunules wider and those on the 

 third and fourth segments very little 

 arched with their inner ends always touch- 

 ing the upper margin, (PI. IV, fig. 5). . . . 1 pyrastri L. 



1 (2) Yellow band absent on sides of thorax ; 

 abdominal lunules more or less narrow, 

 those on the third and fourth segments 

 much ar bed, their inner ends very rare- 

 ly touching the hind margins, (PI. IV, 

 fig. 4 and PI. I, fig. 11) 2 albomaculatus Macq, 



