Szekessy Vilmos (szerk.): A Magyar Természettudományi Múzeum évkönyve 59. (Budapest 1967)

Vojnits, A.: The distribution and forms of the Gnophos-group (Lepidoptera, Geometridae) in Hungary. I.

populations, with, the possible exception of the one in Gerla, belong to the nominate form. Accordingly, the variety saturata JTUCHS becomes its junior synonym. The Gerla specimen was collected by a light trap. Gerla beyond the Tisza is the sole locality of the species, far removed from either those between the Danube and the Tisza or those situated in the mountains. The specimen is strikingly dark, and the date of its capture, as related to that of the other Hungarian specimens, very late (2 October). Any further study would need complementing exemplars. Gnophos dumetata vindobonica ssp. n. Dimensions. Alar expanse: 37.5 mm + 1.5 mm. On the basis of the available specimens, the fluctuation in size of the individuals belonging to the Lower Austrian population is smaller than that of the Hungarian exemplars. Colour and pattern. Basic colour of upperside of fore wing sand grey, outer marginal area brown. Entire wing surface with an olive suffusion, especially conspicuous on brown marginal area. Basic colour with a sparse irroration of black dots : rather sporadic in some exemplars, and slightly denser in others. Apex concolorous with basic colour. Submarginal line narrow, sharply delimited, contiguous between costa and dorsum. Brown terminal field sharply distinct from basic colour on both fore and hind wings ; transition negligible. Punctate line constituting antemedian and postmedian lines sharply distinct on fore wing ; stripe dividing median field considerably more indistinct. Postmedian line without any darker stripe or "shadow". Postmedian present also on hind wing, "shadow" absent also here. Basally of punctate line constituting postmedian line only some few spots present. Discal spots rather weak on hind wings, hardly or not discernible on fore wings. In their totality, the Austrian specimens are more strikingly marked, owing to the uniformly pale basic colour and the sharply delimited dark terminal field and punctate lines, than those belonging to the nominate form. Basic colour of underside a pale dirty yellowish. Brown irroration sparser and paler than in nominate form. Discal spots and postmedian line more or less well discernible; more distinct on fore than on hind wings. Head and thorax concolorous with basic colour (sand grey), abdomen slightly lighter than outer marginal field of wings, with a yellowish sheen. On the basis of the above differences, the Lower Austrian population is to be regarded as a geographical race distinct of the Dalmatian and Hungarian populations ; I introduce it, with respect to its typical locality, under the name Gnophos dumetata vindobonica ssp. n. (Plate, figs. 5, 6). Holotype male: "çf Wien, Dörnbach, VIII. 18. e.l. HIRSCHKE". Paratypes: "Wien, VIII. e.l. BAHR; çf, Wien, Schafberg, 1911. IX. 2; 2 çf, Austr. inf., Dornbach, 29.8.6, Dr. ScHAWERDA, Wien". The Holotype and the Paratypes are deposited in the Zoological Department of the Hungarian Natural History Museum. Gnophos pullata SCHIFF. A European — Central European, montane, subalpine — alpine species (VARGA, 1964). In Central Europe, it occurs everywhere in the chain of the Alps, and it was collected in numerous localities also in Slovakia and Poland (HRUBY, 1964; BLESZYNSKJ, 1966).