Diptera danica : genera and species of flies hitherto found in Denmark . segment, and the connection 1 The antennae in Leptogaster are generally ascribed a two-jointed style, but asshown by figs. 3 and 5 this is erroneous. Meigen who founded the genusin Illig. Mag. II, 1803 says in this place about the antennae only: „dreigliederig das letzte kegelformig, spitzig. In Klass. d. europ. Zweifl. 1804 he says: „dreigliedrig das dritte ist kegelformig, zusammengedrukt, an der Spizze mit einer Endborste. In Syst. Beschr. europ. zweifl. Ins. II, 1820 he says:,das dritte Glied .... an der Spizze mit ei
Diptera danica : genera and species of flies hitherto found in Denmark . segment, and the connection 1 The antennae in Leptogaster are generally ascribed a two-jointed style, but asshown by figs. 3 and 5 this is erroneous. Meigen who founded the genusin Illig. Mag. II, 1803 says in this place about the antennae only: „dreigliederig das letzte kegelformig, spitzig. In Klass. d. europ. Zweifl. 1804 he says: „dreigliedrig das dritte ist kegelformig, zusammengedrukt, an der Spizze mit einer Endborste. In Syst. Beschr. europ. zweifl. Ins. II, 1820 he says:,das dritte Glied .... an der Spizze mit einem zweigliederigen Griff el: daserste Glied sehr kurz, das zweite walzenformig, haarig, spizzig„ and his figure(Tab. 21. 11) also shows such a style; but this is a mistake, the style is undi-vided and has no second joint, neither at the base nor at the apex. Asilidae. 9 between the first and second ventral plate lies just under the rowof muscular impressions on the second dorsal segment; the secondventral plate reaches to the end of the second dorsal; the other. Fig. 1. L. cylindrica. Metathorax and abdomen. 1—8 the eight dorsal segments,l—ff the eight ventral segments. metanotum, metastermum, M. mem-brane, U. f. upper forceps, L. f. lower forceps, V. L. ventral lamella, D. L. dorsal median lamella. ventral plates are of the same length as the dorsal plates to whichthey belong. The last segment is short, especially in the male. Themale genitalia are somewhat swollen; they consist of a large hook-formed upper forceps the arms of which are curved towards eachother at the apex, so that they leave a space between them; in thislies the median dorsal lamella directed more or less upwards betweenthe arms of the forceps; below the upper forceps lie the lower for-ceps; the arms of the latter are somewhat bulbous at the base withhook-formed, somewhat complicated apex which is hidden between thearms of the upper forceps; below the lower forceps at the base liesthe som
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