A Monocjiaph uf Egyplian Diplera. 35 



Female : length of body : 4.3 mm. ; ovipositor : 0.3 mm. ; wing : 

 3 mm. 



Maie : Unknown. 



DESCRIP'J ION. FroiLs diill reddish-ye.How; fate pale yel- 

 low, sbiniiig aud possessing the two usual dark rounded spot.s in 

 the antennal grooves just above the epistoma; cheeks yellow; occiput 

 and vertex reddish-yellow, witli the ocellar triangle brownish; palpi 

 and antennae somewliat dull reddish-yellow, but the latter with the 

 extrême tip of Uie tliird joint dark brown; ail the bristles are black- 

 ish. 



Thorax entirely reddish-yellow except the humerai and prealar 

 calli pale yellow, as well as the posterior half of the mesopleurae and 

 a small spot on the upper margin of the sternopleurae; the pubes- 

 cence is very short, white and rather dense; ail the bristles are black; 

 scutellum yellow, somewhat shining, with two black a. se. 



Abdomen of a characteristie shape re.seml)ling somewhat a hoUow 

 hémisphère, especially when ,seen sideways; it is of the same reddish- 

 yellow colour as the thorax but on the three basai segments there are 

 some irregular blackish spots ; the pubescence is uniformly short and 

 white; ovipositor very short, eylindrical and reddish-yellow. 



Legs entirely reddish-yellow; middle tibiae with a single spur. 



Wings hyaline with the usual brown spot at the apex, not iso- 

 lated but joined narrowly with the brown stigma by a thin brown 

 line running along the upper margin; the Cu cell is entirely brownish 

 and the radio-median cross-vein is blackish owing to its being finely 

 bordered with brown. 



I hâve before me Dr. Becker's type, being the only spécimen 

 known so far of this curions species. It belongs to the Berlin Muséum 

 and like the preceding has been captured by Ehrenberg and bears 

 the vague label 'Egypt.' 



DACUS OLEAE, Gmemn 

 (PI. II fig. 4) 



Gmel., Syst. Naturae, 1.5.2844 (Micsca) (1788) ; Sieuve, (1769); 

 Penchien.^ti, 595. (1788); Rossi, 317.1538 (Mitsca) (1790); Giovene, 

 !(1792); Olivier, 386.(1792); Fabr., 349.152. (Musca) (1794) et 

 215.3. (O.-cinis) (1805); Coquebert, 110. pi. XXXIV. f. 16. (Musca) 

 (1804); B.4YLE-BARELLE, 101. (Miisca) (lvS09); Pollini, (1817); Bri- 

 GANTi, 97.pl. (]822); Tripaldi, 139. (1822); Meig., 264.6. (Bra- 

 rhyopa) (1822) et 22.1. pi. VI.L.f .11— 13. (1830) : Risso, 230.(1S27); 

 A. Costa, 202. (1828); Grimaldi, 1. (1828); Passerini, 10. pi. 

 {Musca) (1829); Wied., 515 nota, (1830); Laure, 17, (1834); Gène, 



