Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 79. (Budapest 1987)

Altenhofer, E. ; Zombori, L.: The species of Heterarthrus Stephens, 1835 feeding on maple (Hymenoptera, Tenthredinidae)

and MCLACHLAN themselves, mixed up the two species. This, of course, can be explained partly by the obvious homonymy, partly by the synonymy suggested by MCLACHLAN himself, and also by the rather inadequately known species of KALTENBACH. The species Phyllotoma aceris MCLACHLAN was originally described in the 4th volume of the Entomologist's in 1867 (October, p. 104). The not too detailed description of the imago is followed on the next page (p. 105) by a very important bionomic description of the larva prepared by CH. HEALY. He informs us that some eleven years before (June, 1856) one of his friends, CH. MILLER published notes on this species in the first volume of the Entomological Weekly Intelligencer (p. 110), giving details about a peculiar larva which when fully fed "constructs a circular case out of the upper cuticle". MILLER'S first suggestion was that the larva must be allied to some microlepidopteran : "Elachista (Antispila) Treitschkiella". This observation clearly demonstrates that MILLER was quite unaware of KALTENBACH'S species described in Germany in the very same year, in 1856. HEALY states that the "larvae are very conspicuous on the leaves of Acer campestre during the months of June and July; occasionally I have met with them on Acer pseudo-plat anus". Still in 1867 MCLACHLAN wrote on page 123 of the Entomologist's that he found the original reference of KALTENBACH'S species in the Verhandlungen, and concluded there, that his own "is undoubtedly the same species, described by Herr Kaltenbach under the same name

... ". However, the problem was further aggravated by RITZEMA Bos (1892) and DALLA TORRE'S Hymenoptera catalogue (1894) which did not have any reference to the original description of KALTENBACH'S species and cited only the reference figured in the Pflanzen-Feinde. So at the turning of the century only leucomelus (KLUG, 1814) was a clear-cut species, while the value of aceris was rather doubtful, and peculiarly enough the specific name was assigned to MCLACHLAN; this practice was kept up in the subsequent publications too (F. KONOW: Genera Insectorum, 1905; E. ENSLIN: Die Tenthredinoidea Mitteleuropas, 1914). While preparing his doctoral thesis the first author collected for several years larvae of leaf-mining sawflies of different genera in various localities of Austria. A part of his material forms the basis of the present contribution, though there are a few specimens which originate from other sources (France, Hungary). Consequently, our findings and conclusions principally rely, in most of the cases, on long series of reared, authentic material. Owing to the fact that the early descriptions are rather short, in the subsequent part the species are described in detai. The most recent descriptions, those prepared by GUSSAKOVSKIJ and SCHEDL, are given in full in the original language. DESCRIPTION OF SPECIES Heterarthrus leucomelus (KLUG, 1814) Tenthredo (Emphytus) leucomela KLUG: Mag. Ges. naturf. Fr. Berlin 8: 274. Female. — Shining black and dirty white. Head black with the following parts dirty white: labrum, clypeus, malar space, a broad band half way up the inner orbit, a more or less roundish spot above the middle of the clypeus, apical three joints of the maxillary palp and all the joints of the labial palp. Surface of head covered by densely set long, silvery pubescence. Labrum in front evenly rounded, •clypeus divided transversally by a furrow, its front margin truncate. Anterior tentorial pits infundibuliform, very deep and black. Interantennal area somewhat bulging with a black fleck in the middle. Superior tentorial pits also very deep. Frontal area clearly elevated, though not limited by keels. Frons divided in the middle by a longitudinal furrow-like depression running from median ocellus down to about imaginary tangential line connecting the upper margins of the antennái sockets. Postocellar area short, scarcely longer than diameter of an ocellus, delimited on either side by a deep, round pit. Head behind eyes more or less parallel, at most a little contracted. Antenna black, but apical 5-6 joints reddish below. The number of antennái joints 11-13. Thorax black with the following parts whitish : the lateral side of pronotum, extreme hind margin of tegula. Cenchri brownish. The acrotergite of mesonotum clearly separated by a wide transverse