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)
at higher altitudes (600-700 m) the larvae were observed still feeding in the beginning of September. Among the Heterarthrus species associated with maple, leucomelus (KLUG, 1814) displays the longest feeding time (up to more than six weeks, even in lower regions). The rearings produced a total of 499 females and 847 males. Material examined. — Austria: St. Christophen, 2. II. 1976, larva ex A. campestre 12. VII. 1975, leg. Altenhofer (1 specimen); Riederberg, 10. III. 1976, larva ex A. pseudoplatanus 19. VII. 1975, leg. Altenhofer (1 specimen) ; Riederberg, 24. V. 1976, larva ex A . campestre 8. VIII. 1975, leg. Altenhofer (1 specimen); Linz, 4. V. 1977, larva ex A. campestre 13. IX. 1976, leg. Altenhofer (4 specimens); Linz, 7. V. 1977, larva ex A. campestre 13. IX. 1976, leg. Altenhofer (31 specimens); Gr. Pertholz, 8. V. 1977, larva ex A.pseudoplatanus September, 1976, leg. Altenhofer (2 specimens); Linz, 13. V. 1977, larva ex A.pseudoplatanus August, 1976, leg. Altenhofer (48 specimens); Strasswalchen, 3. V. 1978, larva ex A. campestre 25. VIII. 1977, leg. Altenhofer (9 specimens). — Hungary : Bükk-h., Nagyvisnyó, Elza-lak, 1956. V. 28-VI. 4, leg. Mihályi and Zsirkó (1 specimen) — A total of 98 specimens. Heterarthrus aceris (KALTENBACH, 1856) Phyllotoma Aceris KALTENBACH: Verh. naturh. Ver. preuß. Rheinl. 13: 257-258. Female. — Shining black and dirty white. Head black with the following parts dirty white or yellowish brown : labrum, clypeus (though in the middle at hind margin with a brown smudge), malar space partly, a broad band along inner orbit about half way up the eye, a U-shaped fleck on inter antennái area, joints 2 and 3 of the labial palp and 3 and 4 of maxillary palp, base of mandible. Head covered by sparse, silvery pubescence. Labrum on front margin broadly rounded, clypeus divided in Fig. 5. Heterarthrus aceris (KALTENBACH), the saw of the female (the section between the broken lines indicates the enlarged portion of the saw shown in Figs 6-9). — Figs 6-9. The portion of the saw of 6 = H. aceris (KALTENBACH), 7 = //. cuneifrons sp. n., 8 = H. healyi nom. n., 9 — H. leucomelus (KLUG)
