Dr. Kassai Tibor - Dr. Murai Éva szerk.: Parasitologia Hungarica 9. (Budapest, 1976)
b) Hooks 19-22 u long, 30 in number balsaci Joyeux and Baer, 1934 c) Hooks 23-26 u long, 44-46 in number decipiens Diesing, 1850 3 (2) Testes arranged in triangular pattern in young proglottids, and in a row in older hermaphroditic proglottids; hooks 26-30 u long, 40 in number aelleni Mahon, 1954 4 (1) Guard of hooks shorter than blade, which extends -beyond the former (Figs. 22b and c) 5 (6) Testes all in a row a) Hooks 21 u long, 26-30 in number macrotesticulatus Sawada, 1970 b) Hooks 21 u long, 30 in number ogaensis Sawada, 1974 c) Hooks 24. 5 ji long, 23 in number iwatensis Sawada, 1975 d) Hooks 26-29 u long, 35-41 in number gertschi Macy, 1931 e) Hooks 32 u long, 22-26 in number isensis Sawada, 1966 6 (5) Testes in triangle a) Hooks 20 u long, 20-23 in number syrdariensis Skarbilovitsch, 1946 b) Hooks 20-23 u long, 20-22 in number kerivoulae Hübscher, 1937 c) Hooks 24 ju long, 16-18 in number sangroundi Baer, 1933 d) Hooks 26-27 u long, base 24 u long, hook number 45-49 baeri sp. n. e) Hooks 28-31 u long, 35-37 in number spasskii Andreiko, Skvortzov et Konovalov, 1969 The species included in the above key have wide host ranges, and their habitats lie in different areas of Europe, Asia, Africa and America. Scrutiny of the most prominent morphological features suggests that some of them are probably synonymous; e. g. V. macrotesticulatus Sawada, 1970 and V. ogaensis Sawada, 1974 show not only identical size and number of hooks, but also their host spectrum seems to be identical. Nevertheless, it would be difficult to state their identity on the basis of literary data only. Vampirolepis acuta (Rudolphi, 1819) nov. comb. Hosts: Myotis myotis, M. nattereri, Nyctalus noctula, Eptesicus serotinus, Plecotus austriacus. - Localization: small intestine. - Habitats: 18 collection sites (for details see Table 2) in comitats Győr-Sopron, Vas, Veszprém, Baranya, Bács-Kiskun, Pest, Nógrád and Szabolcs-Szatmár. - Extensity and intensity in various hosts: 3 specimens on a single occasion in M. myotis, 1 specimen on one occasion in M. nattereri, 1-35 specimens on 40 occasions (48.2%) in N. noctula, 1-112 specimens on 25 occasions (69.4%) in E. serotinus, 1 specimen in 1 P. austriacus. The single V. acuta available in the JOYEUX collection at the University of Neuchâtel (host: E. serotinus; habitat: France, Búré d'Orval, March 1930) was a destrobilated "winter" specimen, so only its crown was of value for morphological evaluation by the present writer (Fig. 9). Description of Vampirolepis acuta nov. comb, on the basis of our material Hymenolepidid of medium size. Mature (egg-producing) strobilae are 45-60 mm in length and 1. 1-1.6 mm in maximal width. The specimens collected during the inactive period of the bat hosts, in winter, consisted only of the scolex and a few young proglottids. 4 8