O. G. Dely szerk.: Vertebrata Hungarica 6/1-2. (Budapest, 1964)

Szabó, I.: Data on Hungarian Siphanoptera until 1945 121-130. o.

Citellus citellus Ctenopthalmus orientális (WAGNER) 13.VI.1907. Kup CSÍKI CSÍKI, 1907.p.177. ro cri Ctenopthalmus caucasicus (TASCHENBERű) Spalax leucodon KOHAUT, 1903-p.56. ISCHNOPSYLLIDAE Nycteridopsylla pentactena (KOLENATI) Plecotua auritus 15.

III.1908. com.Peet Hazai Zool.Labor. KOHAUT, 1903.p.65. H. & R. 1956.p.224, Nycteridopsylla dictena (KOLENATI) Nyctalus noctula KOHAUT, 1903.p.65. Plecotu

s, auritus auritus L., and Plecotus austriacus austrjaçus (FISCHER) are systematically closely adjacent and easily confusable species.TOPAL'

3 investigations have shown that, in Hungary, Plecotus austriacus is rather frequent, whereas pi. au ritus is extremely rare. It is quite probable that the hosts shown earlier have also been PI. austriacus instead of PI. auritus

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