Hydraena (s.str.) bosnica Apfelbeck, 1909

Type locality: Pazariċ, 43°47'19"N 18°09'39"E, Krupa Valley, SW of Sarajevo, Bosnia and Herzegovina.

Lectotype male (NMW), by present designation: “Pazariċ Krupa-Th[al (= Valley)] \ male \ bosnica Typ. Apf. ”. Paralectotypes: 1 female (NMW), same label data as lectotype, except “female”; 1 male (NMW): “Pazariċ Krupa- Th \ male \ bosnica Apf. det. Apfelb.”; 1 female (NMW): “Pazariċ Krupa-Th \ female \ bosnica det. Apflb.[= Apfelbeck]”; 1 male (NMW): “Herzegov. Jablanica \ male \ bosnica Apf. det. Apfelb. \ det.E.Pretner hungarica Rey ”; 1 female (NMW): “Herzegov. Jablanica \ bosnica Typ. Apf. \ hungarica Rey det.E.Pretner”; 1 female (NMW): “Herzegov. Jablanica \ female \ bosnica Apf det. Apflb. \ hungarica Rey det.E.Pretner”.

Additional paralectotypes are housed in the Pretner collection (Biološki inštitut ZRC SAZU, Slovenian Academy of Sciences and Arts, Ljubljana, Slovenia), the Magyar Természettudományi Múzeum, Budapest, Hungary and probably (if not destroyed during the war in BIH, 1991–1995) in the Zemaljski Muzej BIH Sarajevo, Bosnia and Herzegovina.

The total number of syntypes was not specified in the original description, where the following distribution was cited: “ Bosnia merid., prope Sarajevo et Hercegovina, prope Jablanica in rivis alpestribus. Rarissime”.

The paralectotypes deposited in the Pretner collection and the Magyar Természettudományi Múzeum are unwarrantedly provided with “ holotype ”, “allotype” and “ paratype ” labels.

Two syntypes (1 male, 1 female) deposited in the Zemaljski Muzej BIH Sarajevo, Bosnia and Herzegovina, were examined by Orchymont (1930: 377), who did not designate a lectotype.

Distribution: So far, this species is known only from the south-eastern part of Bosnia and Herzegovina.

The record from the plain in northern Croatia (Ludbreg) by Apfelbeck (1912) under the name H. ganglbaueri Apfelbeck, 1912 is certainly due to an error.