Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 80. (Budapest 1988)

Vásárhelyi, T.: New Palaearctic Aradus species in the betulae-group (Heteroptera, Aradidae)

aticn in the geographically distinct materials of obtectus, some basic features of outer morphology as well as the male genitalia show little variation and the differences are not consequent, therefore further division of the species is unjustified. The relative length of the antennái joints varies greatly (e.g. on the largest specimen of obtectus, from Görgény, Fig. 16., joint 2 is relatively longer than on pictus, but the ratio of joints 3 and 4 is characteristic of obtectus). Colouration varies from orange and reddish-brown to grey. There is considerable variation in the shape of sclerites on the ventral side of the female abdomen and in the shape of last segment too. Specimens from Melnik have poorly developed eighth laterotergites (Fig. 34.), possibly of genetic failure, since 2 specimens out of 5 have similarly deformed and atrophied laterotergite on the left side. DIFFERENCES IN THE SPECIES pictus Antennái formula 10 : 49 : 22 : 19 (male) and 10 : 49 : 22 : 19 (female) Antennái joint 2 longer, more narrowing in the middle (Figs 12, 14) Laterotergite of segment 8 of male and female produced more posteriorly beyond spiracles (Figs 17, 29, 31-32) Colouration of last segment of female brownishblack in the middle and especially on the lateral edge of laterotergites (Fig. 19) Paramer without basal protrusion (Figs 21-22) Parandrium apically less narrowing, margin with long hairs in the whole length (Fig. 25) Medial lobe of tergite 9 curling laterally, lateral lobe long, curled, pointed, produced posteriorly (Fig. 27) Posterior margin of genital chamber with long, fine hairs (Fig. 27) obtectus Antennái formula 11 : 47 : 21 : 21 (male) and 10 : 48 : 21 : 21 (female) Antennái joint 2 thicker, shorter (Figs 13-14) Laterotergite of segment 8 of male and female produced less posteriorly bevond spiracles (Figs 18, 30, 33-34) Coloration of last segment of female reddish (Fig. 20) Paramer with basal protrusion and with long hairs (Figs 23-24) Parandrium apically almost pointed, with a sole long hair (Figs 23-24) Medial lobe of tergite 9 curling laterally, lateral lobe short, produced laterally (Fig. 28) Posterior margin of genital chamber bare, only basally with some hairs (Fig. 28) Material — Considering the large number of specimens and localities, in the case of paratypes only the text of the first label is given. Holotype (male) and allotype (female) (both on the same pin) : "Karpates, Cruce-Moldav., col. Montandon". — Paratypes in the Hungarian Natural History Museum (Budapest): "Karpates, Cruce-Moldav. col. Montandon" 2rf, 5 9 ; "Morea, Cumani, Brenske" 2/, 20 ; "Romania, Piatra Craiului, Curmatura 1000m" Irf, 3 larvae; "Lucski,

4. 8. 85." 39, 2larvae; "Mehádia, Pável" irf; "Bártfa, Mihalovics" 19 ; "Verestorony, Csiki" Irf, 1 larva; "Ferencfa, Horv. 1908" Irf ; Görgény, 28.5.92." 19 ; "Pietrosz, 10. 7. 87." Irf, 29, 2 larvae; "Körösmező, Csiki 1911" Irf ; "Radnai-hegys. Csiki" Irf; "Moravia, Paskau 79, Reitter" 19; "Spalato 79" Irf; "Latif Pulaj" 1 9 ; "Kephallenia, Paganetti" Irf ; "Caucasus, Thana-Tal, F. König" irf; "Vinogradovka, Ussuri kr. Kiritshenko, 7. VI. 929." Irf, 1 9 ; "Ushkania nad lu. z. ber. oz. Baikal, Kiritshenko 27. VII. 950." \rf, 19 ; "259" \rf

. — In the private collection of Mr. E. Heiss (Innsbruck): "Gramaisertal, Ti leg, Knabl" 1rf ; "Zagradenja Drama (Gr.), 15. 9. 1986." Irf, 1 Ç ; "Südfrankr., Umg. Digne, Prads, VI. 79. Heiss" 2rf, 19; "Südfrankr., Umg. Digne, Prads-Tertiers" Irf; "Tölgyes, Siebenbürgen" Irf. — In the Zoological Institute of the Academy of Sciences of the USSR (Leningrad): "Vinogradovka, Ussuri kr. Kiritshenko, 2. VI. 929" Irf, 1 9 ; "Promisel Ozherpach, liman Amura, Tshernavin, 29-31. VII. 915" Irf, 19 ; "st. Mshinskaya. Luzhsk. r. Leningr. V. Stark 12. VI. 931." 1 9 ; "Guzeripl Gos. Kavkaz. Zapovedn. 931. Slashevskiy, 11. X." 19 ; [almost illegible handwriting, lcear is "Guzeripl., 9-IV-35"] 2rf, 1 9 ; "Alma Ata, Kazakhst., Parphentiev, 20. VIII. 945." Irf. 1 9 ; "Listvenitshnoe, lu.-z. Baikal, Kiritshenko, 22. VIII. 950." 1 9 ; "Pestshanka, Troitskosavsk. u' Zabáik. Michno 14. VIII. 926." Irf. — In the Zoological Museum of the University of Helsinki (Helsinki): "Morea, Cumani, Brenske" 1 9 ; "G: a Sandön, Mjöberg" [G : a written in three different ways on different labels] Irf

, 29 ; "Djurdjura" 10 ; [handwriting, "Djurdjura" readable] 19 - — In the Zoological Museum of the Humboldt University (Berlin): "Bialowies." 1 9 ; "No. 500, Mon-