L. Forró - É. Murai szerk.: Miscellanea Zoologica Hungarica 5. 1989 (Budapest, 1989)
Murai, É.: Ceratozetes gracilis (Michael, 1884) (Acari: Oribatida), an intermediate host of Vampirolepis asymmetrica (Janicki, 1904) (Cestoda: Hymenolepididae)
Comparative material: Adult specimens of V. asymmetri ca from the Bükk National Park Definitive hosts: Pitymys subterraneus De Selys-Longchamps, 1836 and Microtus ar- valis Pallas, 1779* Localities: Bélapátfalva, 21 June, 1982; Bükkszentkereszt-Rejtek, 7 May, 1985; Nagyvisny4, 24 June, 1984; Szilvásvárad, 21 June, 1984, collected by F. MÉSZÁROS and É. MURAL Localization: in the small intestine. Prevalence: Two specimens of the 41 M. arvalis examined (5%) and twenty-two of the 67 P. subterraneus (33%) were infested with V. asymmetrica. Intensity: 1-10 specimens (more than 50 specimens were available). Material fixed and preserved in 5% formaline, worms stained with alum-carmine, hooks studied in Berlese medium. To verify the identity of cysticercoid, found in oribatid mite, the morphological and metrical data of V. asymmetrica (adult worms) in the Bükk National Park are presented. Description: Length 36-95 mm, maximal width 23 mm, diameter of scolex 0.21-0.27 mm. The four suckers measure 0. 063-0. 093 mm in diameter. Rostellar sack 0. 075x0. 10 mm, rostellum 0. 034-0. 060 mm in diameter; number of rostellar hooks varies between 19-24; length of the hooks 0. 021-0. 023 mm, at the base 0. 018-0. 022 mm. The form of the rostellar hooks is shown in Figs 3, 9. The most important characters of strobila: three testes in one line or in triangle, cirrus spinose, eggs spherical 0. 045-0. 065 mm in diameter, embryonal hooklets 0. 009 mm in length (Fig. 4 ). The morphology of V. asymmetrica population is the same as in our previous investigations in the Carpathian Basin (MÉSZÁROS and MURAI, 1979; MURAI, 1974; TENORA. and MURAI, 1972; TENORA and MURAI, 1976). Adult specimens of Vampirolepis straminea (Goeze, 1782) syn. V. microstoma (Dujardin, 1845) Because PROKOPIC (1962) described an oribatid mite as intermediate host of V. stra minea, we give the measurements and some morphological data of V. straminea in Hungary. A) V. straminea in hamster - Cricetus cricetus Linné, 1758 Localities : The Great Hungarian Plain; Békéscsaba, Balmazújváros, Csárdaszállás, Debrecen, Hajdúszoboszló, Kaba, Katymár, Madaras, Mezőkövesd, Murony, Tiszavasvári; collected by G. CSORBA, B. EDELÉNYI, Zs. KALOTÁS, A. LEGÁNY, I. MATSKÁSI, F. MÉSZÁROS, É. MURAI, J. RÉKÁSI and I. SZABÓ, in the years 1966- 1985. Localization: Small intestine. Prevalence: 30% (from 307 C. cricetus examined 63 were infested with V. straminea in Békés and Hajdú-Bihar counties). Intensity: 2-30 specimens in one host. 58 specimens of the third potential host of V. asymmetrica, Clethrionomys glareolus (Schreber, 1780) were investigated, but none of them was infested with V. asymmetrica in this territory. Fig. 1. Cysticercoid of Vampirolepis asymmetrica in an oribatid mite Ceratozetes gracilis (Bükk National Park) Figs 2-4. V. asymmetrica (2= scolex; 3= rostellar hooks; 4= egg) from Pitymys subterraneus (Bükk National Park) Figs 5-7. V. straminea (5= scolex; 6= rostellar hooks; 7= egg) from Cricetus cricetus (Tiszavasvári) (Figs 1, 2, 5 author's photo; Figs 3,4,6,7 photo B. LOVAS).
