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Notes on the Ethiopian Fruit-flies of the Family Trypaneidae, other than Dacus (s.l.) (Dipt.).—II*

Published online by Cambridge University Press:  10 July 2009

M. Bezzi
M. Bezzi
Affiliation:
Turin, Italy.
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Extract

This genus was recently described by Dr. Speiser and is a very characteristic one, on account of its elongate and slender body and bare 3rd longitudinal vein. The species belonging here, as long ago pointed out by Loew, have a great resemblance to those of the genus Elaphromyia, but they are at once distinguished by the thin and black occipital row, by the pointed lower angle of the anal cell and by the non-reticulate wing pattern. The genus is evidently allied to Ocneros, but has nothing to do with Rioxa. I will give here some additional details to the short description of Dr. Speiser

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 9 , Issue 1 , October 1918 , pp. 13 - 46
Copyright
Copyright © Cambridge University Press 1918

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References

* Urophora basilaris, Macquart (1835) seems to be an Ortalid.

* [In E. adatha it is not the basal half of the wing that is hyaline, but the basal half of the posterior border only; E. ulula is undoubtedly synonymous with this species.—Ed.].

* These bristles seem to be homologous with the crossed frontal pair (Kreuzborsten) of the Anthomyiidae; their presence here may be accidental, as such bristles are not known to occur in the Trypaneidae; but the present case is very important theoretically.

* [The specimen figured is from Nyasaland, Mt. Mlanje, 23. iv. 1913 (S. A. Neave).—Ed.]

* [An examination of the type specimen shows that this species is not a Campiglossa but an Euribia, and it runs down next to E. dissoluta, Lw., and E. tristrigata, Bezzi, in the author's key to that genus. It may be distinguished from these two species, inter alia, by the markings in the 2nd posterior cell; th s has along its margin three widely separated small round spots, the innermost being larger than the other two, and in the centre there is a small spot of the same size as the outer marginal ones and a minute dot. In the other species the markings are larger, irregular and for the most part confluent.—Ed.].

* [The characters given in the key do not apply to Walker's type, which has a wing pattern very similar to that of T. amoena, Frf., and T. stellata, Fues. The apex of the wing is hyaline; there are two spots in the base of the 1st posterior cell; the ground-colour of the thorax and abdomen is black dorsally, not fulvous; no oblique stripe from the stigma to the small cross-vein; and the lower angle of the anal cell is a wide acute angle.—Ed.].