_^ .4 Monograph o/ ËgypUan Dîpicrn. lll 



rell are hyaline; 2nd C. cell with 2 large hyaline spots, one in the 

 basai half and one oeenpying the apical half of the eell; the stigma 

 is blnrkish with a yellowish spot which varies in size, usually it is 

 in the apieal half l)ut does not extend to the apex and sometimes it 

 occupies ail the apical half; RI eell with 4 hyaline spots, the two in 

 the basai half being by far the smallest; R3 cell with 6 to 8 hyaline 

 spots of varying size and shape ; R cell with 7 spots ; R5 eell with 5 to 

 7 spots; Ist M2 cell with 5 to 7 spots, the apex of this cell being 

 blackish with one or at most two hyaline spots close to the médian 

 cross-vein; 2nd M2 cell with 4 to 5 hyaline spots; Cul cell with 

 4 to 5 spots which usually run together, except the apical one, below 

 the médian cross-vein and touching the lower margin; M. and Cu 

 cell are alrnost entirely hyaline except for a small brownish-grey spot 

 usually covering the inferior angle of Cu cell and extending over the 

 apex of Cu2 + A2; the axillary lobe is entirely hyaline; ail the veins 

 are identical with those of T. matricariae. 

 Squamulae pale yellow, haltères yellow. 



In comparing the descriptions of T. matntina and T. spreta 

 I hâve found no essential différence between them and I came to the 

 conclusion that they referred to the same species. Prof. Bezzi has 

 confirmed this conclusion by an examination of the type of matu- 

 tina which he agrées to be a spécimen of spreta. 



I hâve captnred a large séries of 60 spécimens of this species 

 at Mazghouna 30.III.1923. It is rather variable and some of the 

 forms are quite indistinguishable from matricariae. "WïÛwntu&evies 

 of the latter it is impossible to give any constant distinguishing 

 character and it is quite possible that sjyreta may prove to be only 

 a variety of matricariae and become a mère synonym. Owing to the 

 rareness, up to the présent time, of spreta\ = mattitina) previous 

 authors hâve not had facilities for settling the relation of matrica- 

 riae to spreta, even if thev had suspected them to be the same. 



TEPHRITI8 MATRICARIAE, Loew, 

 (PI. IV fig. 4) 



Lv,?., Germ. Zeitschr., V. 389. t. II. f. 43 (Tri/peta) (1844) et 

 Trypetid., 102. 7. t. XX. f. 3. (1862) ; Frfld., Sitzuiigsber. d. Kais. 

 Akad. d. Wiss., XXII. 556. (1856) et Verh. zool.-bot. Ges. Wien 

 XI. 167. (1861); ScHiN., Verh. zool.-bot. Ges. Wien, VIII. 674. 82. 

 (1858); Kaltenb., Pflanzenf., 343. 16. (Trypeta) (1872); Beck., 

 Zeitschr. f. Hymen, u. Dipt., 387. 7. (1907). 



= spreta Lw ? 



