llÔ II. C. EFFLATOUN. 



TEPHRITIS SPRETA, Loew. 

 (PI. IV fig. 1) 



Lw., Berlin, eiitom. Zeitsehr.. V. 297. t. II. f. 26. (1861). 



matutijia Rond., Dipterol. Ital. Prodr., VIL Ortalid. 22.20. 

 (1781); Beck., Zeitsehr. f. Hymen, u. Dipt.. V. 387. 418. (1907) 



DIAGNOSIS: — Allied to T. matricariae but distinguished 

 from it by the gênerai colour of the wings which is from brownish- 

 grey to dark grey and by the apex of Ist M2 cell which is dark with 

 one or at most two hyalme spots close to the médian cross-vein. 



Maie and Female. Length of body : 4.9—5.2 mm. ; ovipositor : 

 0.9 mm. ; wing : 4.3—4.6 mm. 



DESCRIPTION: — Head yellow to orange yellow except along 

 the eye margins; face and cheeks pale yellowish owing to a, very 

 délicate shining white lomentum which frequently extends over ail 

 the occiput ; antennae reddish-yellow with a blackish microscopical- 

 ly pubescent arista; ocellar triangle blackish; epistoma not at ail 

 prominent; proboscis short, reddish-brown with yellow to pale yel- 

 low paipi ; s. or. 2, i.or. 2 ; genal bristle well developed ; ail the bristles 

 are blackish except the upper s. or., the prt., the outer rt. and the 

 ocp. very pale yellowish. 



Thorax black except on the humerai and prealar calli usually 

 yellow (this is seen in rubbed spécimens) and covered with a dense 

 tomentum which, on the dise and scutellum is greyish-brown and on 

 the pleurae and mesophragma cinereous; the latéral margins of the 

 scutellum and extrême tip are usually reddish-yellow (as in matri- 

 cnriue) ; scutellum with 4 bristles; ail the bristles are blackish except 

 the m2:)l. and pt. brownish-grey ; the pubescence is unif ormly pale yel- 

 lowish. 



Abdomen black except the lower margins of the segments usual- 

 ly dark reddish-brown and entirely covered with a délicate cinereous 

 tomentum ; ovipositor as long as the two apical segments of the ab- 

 domen together and usually entirely shining black; sometimes how- 

 ever the two latéral margins of the apical half or more are broadly 

 reddish-yellow; the ])ubescence on the alxlomen and on the l)asal half 

 of the ovipositor is uniformly pale yellow but it is brownish and much 

 finer on the apical half of the latter; the apical bristles are black. 



Legs entirely pale yellow to reddish-yellow with a uniform 

 blackish pubescence. 



Wings of a dark grey to brownish-grey colour and rather large, 

 rounded, hyaline spots which are very similar to T. matricariae; in 

 fact I hâve been unablc to find .so far a single distinguishing cha- 

 racter between the two species; the extrême wing base and Ist C. 



