Holomenopon clypeilargum Eichler, 1943a

Host: Mergellus albellus (Linnaeus, 1758) .

Ref.: Balát (1953, 1956) as Holomenopon sp; this paper.

Locations: Čilistov, 23 Mar. 1950 (Balát Coll., MMBC slide number 481); Senné, Spring of 1955 (Balát 1956) .

Note: This is the first record of Holomenopon clypeilargum from Slovakia. Also, it is a new host-louse association worldwide (Price et al. 2003: 112).