Genus Selenonycha Kethley, 1970

Type species: S. baltoda Kethley, 1970

This genus includes only S. baltoda Kethley, 1970 . This species was described from Charadrius wilsonia Ord (Charadriidae) from the USA (Kethley 1970). Later on it was recollected from Charadrius placidus Gray from Russia (Bochkov & Mironov 1998). Below we give five new host species for S. baltoda .

Material examined

Nine females and 4 males (Syr.95) from Pluvialis dominica (Müller) (Charadriidae); Paraguay, Departamento Alto Paraguay, West Bank of Rio Paraguay, Colonia Carmelo Peralta, 21 September 1988, coll. S. M. Goodman; 25 females, 3 males and 1 nymph (Syr.96) from Larus atricilla L. ( Laridae); USA, Florida, Taylor Co., 28 mil SE Perry, 0 1 September 1970, coll. W. T. Atyeo; 7 females and 2 nymphs (Syr.97) from Larus genei Breme ( Laridae); Egypt, Lake Manzala area, 0 4 January 1984, coll. S. M. Goodman, UMMZ 206583; 8 females and 1 male (Syr.98) from Larus californicus Lawrence (Laridae); USA, California, Mono Co., Mono Lake, 16 July 1983, coll. J. R. Jehl, UMMZ 206315; 2 females (Syr.99) from secondaries of Larus ridibundus L. ( Laridae); Germany, Regis (in Saxony), 31 October 2002, coll. Synnatzschke; 2 females from the same host; Germany, Leipzig, 0 7 September 2002, coll. Synnatzschke.

Material deposition. From Pluvialis dominica: 5 females and 3 males at UAM, 2 females and 1 male at ZIN, 2 females at UMMZ; from Larus atricilla: 16 females, 2 males and 1 nymph at UAM, 4 females at ZIN, 2 females at ZSM, 3 females and 1 male at UMMZ; from Larus genei: 5 females and 2 nymphs at UAM, 2 females at UMMZ; from Larus californicus: 6 females and 1 male at UAM, 2 females at UMMZ; from Larus ridibundus: all specimens at UAM.