Revision of Alloxysta from the north-western Balkan Peninsula with description of two new species (Hymenoptera: Figitidae: Charipinae).

The aphid-associated Charipinae of Serbia, Montenegro and Slovenia have been studied. Nine species are recorded for the first time from these regions: Alloxysta arcuata (Kieffer, 1902), A. brevis (Thomson, 1862), A. castanea (Hartig, 1841), A. fracticornis (Thomson, 1862), A. fuscicornis (Hartig, 1841), A. macrophadna (Hartig, 1841), A. mullensis (Cameron, 1883), A. pleuralis (Cameron, 1879), and A. salicicola Belizin, 1973. Only Alloxysta victrix (Westwood, 1833) was previously recorded from this region. The important morphological characters of these species are briefly described and compared. Two new species, Alloxysta kovilovica Ferrer-Suay & Pujade-Villar sp. nov. and A. slovenica Ferrer-Suay & Pujade-Villar sp. nov., are described and their morphological characters are illustrated. A key for identification of the Charipinae already known from the north-western Balkan Peninsula is provided. [ABSTRACT FROM AUTHOR]