inquirenda, Forster, 1869

Reshchikov, Alexey, Santos, Bernardo F., Liu, Jing-Xian & Barthélémy, Christophe, 2019, Review of Palpostilpnus Aubert (Hymenoptera, Ichneumonidae, Phygadeuontinae), with the description of ten new species, European Journal of Taxonomy 582, pp. 1-63 : 57-58

Species inquirenda

Material examined

BRUNEI • 5 ♂♂; Labi; 200 m a.s.l.; mixed dipterocarp forest; Aug.–Sep. 1979; I. Gauld leg.; NHMUK • 1 ♂; Sep. 1982; N. Stork leg.; NHMUK.

PHILIPPINES • 2 ♂♂; Leyte Island, Bay Bay, Visca Forest; 5–13 Sep. 1980; L. Tuangga leg.; NHMUK .

Remarks

For eight male specimens, any morphological association with known females was not evident. Some of them could correspond to the males of P. angkor sp. nov., and at least some of these specimens seem to belong to a distinct taxon. Males of Palpostilpnus , however, show a complex dynamic of morphological variability, making its interpretation too risky with few specimens and without the corresponding female. Hence, the specimens in question are better interpreted, at least for now, as species inquirenda. Further studies with a refined population sampling of the genus should shed light on the interpretation of these specimens and of additional, undescribed taxa.