. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 136 Orthonhapha brachycera. reniform with an arista going out from the upper part. Eyes bare, the facets in the male slightly unequal. With regard to the mouth parts I have not been able to examine these in any other way than with a lense and in situ, I therefore chiefly am obliged to refer to the description given by Becher, (Denkschr. d, Kais. Akad. d, Wissensch. Wien, Math. nat. Glasse, XLV, 1882, 143, Taf. II, Fig. 20). The clypeus is not separated; the proboscis is rather short (longer in marginata than in i
. Diptera Danica: genera and species of flies hitherto found in Denmark. Diptera. 136 Orthonhapha brachycera. reniform with an arista going out from the upper part. Eyes bare, the facets in the male slightly unequal. With regard to the mouth parts I have not been able to examine these in any other way than with a lense and in situ, I therefore chiefly am obliged to refer to the description given by Becher, (Denkschr. d, Kais. Akad. d, Wissensch. Wien, Math. nat. Glasse, XLV, 1882, 143, Taf. II, Fig. 20). The clypeus is not separated; the proboscis is rather short (longer in marginata than in ibis), the labella are long oval, not broad, longer than the basal part of the labium. There is a difference in the mouth between the sexes. The females have, as in the Taba- nids, both mandibles and maxillae, these are Fig. 41. Antenna of formed about as in the Tabanids; the labrum Atherix ibis. ^^ ^^ ^.j^^ ^^^^^^ ^^ ^^^ proboscis, pointed, the hypopharynx is shorter. In the males the mandibles are wanting, and Becher says: „Diesen (the males of Atherix and Symphoromyia) scheint aber noch ausserdem auch die Stechborste (hypopharynx) zu fehlen", this statement is, 1 thinck, not correct, (see about the question under Stjmphoromyia). There are two-jointed maxillary palpi, the second joint is long, somewhat curved. Thorax is nearly quadratic. Abdomen is somewhat elongated, consisting of seven segments. The male genitalia are somewhat knob-like with a pair of styles. The front tibiae without apical spurs, the posterior tibiae with two apical spurs; the front tarsi long with some curious, delicate, longish hairs on the under side. Wings with the anal cell closed. The larva is described and figured by Dufour (Ann. de la Soc. BY Ser. 4, 11, 1862, 131, PI. II, fig. 2) and Brauer (Denkschr. d. Kais. Akad. d. Wissensch. Wien. xMath Nat. Glasse, XLVII, 1883, Tab. Ill, Fig. 48—51). It is elongated, the body consists of twelve segments; on the ventral surface of each abdomina
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Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
