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Cat. no.
Title
CZK
EUR
ZCS 22065
Rupeš I., 1986: Dytiscidae (Coleoptera) rašeliniště Oceán v západní části Krušných hor. 8 pp. [M38] Zprávy Čs. spol. entomol. při ČSAV 22: 65-72.
50
2
PPE 75359
Ruta R., Stachowiak M., Aleksandrowicz O., 2006: The first record of Paracymus aeneus (Germar, 1824) (Coleoptera: Hydrophilidae) in Poland with notes on halophilous and halobiontic Hydrophilidae and Hydraenidae in Polish fauna. 10 pp. Polskie Pismo Entomologiczne 75(3): 359-368.
50
2
CBU 48207
Ryker L. C., 1994: Male avoidance of female rejection: learning in Tropisternus Solier water beetles (Coleoptera: Hydrophilidae). 6 pp. The Coleopterists Bulletin 48(3): 207-212.