-1 Monograph of Egyptian Dipfcra. 105 



TEPHEITIS CONYZAE, Frauenfeld. 

 (PI. V fif;-. 4 and n. I fi-, 14) 



Frfld., Sitziingsber. d. Kais. Akad. d. Wiss., XXII. 555. 

 f. 11 (1856); Lw., Berlin, entom. Zeitschr.. V 2S5. t. II f 18 

 (1861). 



DIAGNOSIS: — A small brownish-grey .species with reticulato 

 ■ wings and a fairly long proboscis, the terminal portion of which is 

 a. s long as the basai portion. 



Maie and Female. Length of l»ody : 2.5—2.8 mm. ; ovipositor : 

 0.7 — 0.8 mm : wing : 2 — 2.4 mm. 



DESCRIPTION.— Head fairly rounded and entirelv yellow, 

 except along the eye margins and face whitisli owing to a very 

 délicate tomentum of that colour; prvoboscis reddish-yellow with the 

 apical portion as long as the basai, the latter being usually darker 

 in colour, almo.st dark reddi.sh-lirown : antennae and palpi reddish- 

 yellow; ocellar triangle blackish; epistoma fairly prominent; i.or 2, 

 s.oi\ 2; ail the bristles are black except the u})per .f.oi'., the outer rt., 

 the pvt. and the genal bristle whitish. 



Thorax entirely covered with a dense brownish to brownish- 

 grey tomentum with the three darker longitudinal lines on the dise 

 usually quite distinct; ail the bristles are black excej)t the pt. white; 

 scutellum with four l)ristles but the a. se. are very weak, being not 

 more than one fourth the length of the b.se. ; the pubescence on the 

 thorax is uniformly pale yellowish and on the pleurae however it is 

 much finer. 



Abdomen entirely covered with a very délicate cinereous pul- 

 verulence ; the pubescence is uniformly pale yellowish and longer and 

 bristlv on the lower margins of the segments and the apical bristles 

 ai-e black. Ovipositor entirelv shining black, about as long as the 

 abdomen and possessing a very délicate grevish pubescence. 



Legs with ail the femora usually dark brown or blackish excei^t 

 their exti^eme tips which are yellow to reddish-yellow; ail the tibiae 

 and tarsi are reddish-yeîlow. 



Wings with a reticulate pattern which is verv characteristic 

 of the o-enus and greatly resemhling those of the European Oxvna 

 nhf:inthii F. (the two species however are immediately distinguished 

 bv the relative lengths of the portions of the proboscis, the terminal 

 portion beinsr always shorter than the basai portion in absintlm. and 

 by the gênerai colour of the bodv) ; thev are brownish and the hyaline 

 spots are rather small, rounded and almost equal in size; thèse 

 hyaline spots are as follows : 2 in 2nd C. cell, one covering the apex 

 and the other close to the base; 5 in Ri cell; 6 or 7 in US cell; 3 in 



