Dasylabrinae Invrea, 1964

Subfamily Dasylabrinae Invrea, 1964

This subfamily was classified into two tribes ( Brothers & Lelej 2017), namely Apteromutillini Brothers & Lelej, 2017 and Dasylabrini Invrea, 1964. The former is restricted to South Africa, while the latter is widespread in the Old World ( Pagliano et al. 2020). Waldren et al. (2023) examined seven out of ten dasylabrine genera and found that Apteromutillini was nested in Dasylabrini, making the latter a paraphyletic group. There is presently no tribal distinction in this subfamily. Dasylabrines are predominantly found in arid regions ( Pagliano et al. 2020). In the Oriental Region, this subfamily is represented by the genera Dasylabris Radoszkowski, 1885 , Orientilla Lelej, 1979 , and Tricholabiodes Radoszkowski, 1885 . The genus Orientilla is the only Southeast Asian taxon; Dasylabris is known from South Asia and China and Tricholabiodes is found in Sri Lanka and western India only (Lelej 2005; Okayasu 2023b).

Genus Orientilla Lelej, 1979

urn:lsid:zoobank.org:act:479EFED7-DAAD-4157-871C-F799FC7BFF4B

Orientilla Lelej, 1979: 1066 , ♀; Lelej 1996a: 103, ♂ ♀; Lelej 2002: 101; Lelej 2005: 111; Lelej & Brothers 2008: 42; Pagliano et al. 2020: 131. Type species: Orientilla vietnamica Lelej, 1979 (♀), by original designation.

Diversity and distribution. This genus includes 14 species widely distributed in the Oriental and eastern Palaearctic Regions ( Lelej 1996a, 2005; Okayasu 2023b). There is only one species from the Australasian Region ( Brothers 2022).

Remarks. This genus was reviewed by Lelej (1996a). An updated key to the females was provided by Okayasu (2023b). This genus is closely related to the Afrotropical and western Palaearctic genus Stenomutilla André, 1896 ( Lelej 1996a; Brothers & Lelej 2017; Waldren et al. 2023). Stenomutilla species are known as parasitoids of bees and wasps constructing their nests with mud or in pre-existing cavities or limacodid moth cocoons ( Lepidoptera ) in the soil or on twigs ( Okayasu 2023b and references therein).