Deltoxenos bidentatus Pasteels, 1950

Deltoxenos bidentatus Pasteels, 1950

Material examined.

• ♀ ( NMPC), Central African Republic: Mbaiki 55 km NW, 510 m, 23.xii.2008, host: Afreumenes sp. , J. Halada lgt., voucher code: PsAf 1 • ♀ ( NMPC), Central African Republic: Mbaiki 150 km NW, 14.vi.2009, host: Afreumenes cf. aethiopicus (Saussure, 1852) , J. Halada lgt., voucher code: PsDe 3 • 4 ♀ ( KUNHM), Malawi: Mlanje env. , 06.iv.1967, host: Afreumenes aethiopicus (Saussure, 1852) , Ch. Michener lgt., voucher code: PsAe 1 .

Diagnosis of female cephalothorax.

Size of cephalothorax: length 1.24–1.48 mm, width 1.16–1.48 mm. Cephalothorax triangular, meso- and metathorax not elongated; apical maxillary region projecting beyond mandibular apex ( Benda et al. 2022 b: fig. 47 C). Mandibles relatively small compared to head capsule ( Benda et al. 2022 b: fig. 49 A).

Hosts.

Afreumenes melanosoma (Saussure 1852) ( Eumenes melanosomus decipiens Kirby ), type host; Afreumenes aethiopicus (Saussure, 1852) ( Pasteels 1950; Luna de Carvalho 1978); Afreumenes cf. aethiopicus (Saussure, 1852) ( Benda et al. 2022 b) ; Afreumenes sp. (this study).

DNA barcode sequences (GenBank).

MN 914583.1 (voucher code: PsAf 1), MK 431201.1 (voucher code: PsDe 3) ( Benda et al. 2021).

Phylogenetic relationships.

The earliest diverging species in lineage of Deltoxenos parasitising Eumenini ( Vespidae ) ( Benda et al. 2021).

Distribution.

Democratic Republic of Congo (type locality); Liberia ( Pasteels 1950, Luna de Carvalho 1978); Central African Republic ( Benda et al. 2021); Malawi ( Benda et al. 2022 b).

Comments.

Benda et al. (2021) lists Delta tropicale (Saussure, 1852) as the host of this species, but it was identified as Afreumenes sp.