Diolcogaster Ashmead, 1900

Moghaddam, Mostafa Ghafouri, Rakhshani, Ehsan, Achterberg, Cornelis Van & Mokhtari, Azizollah, 2019, A taxonomic review of the genus Diolcogaster Ashmead (Hymenoptera, Braconidae, Microgastrinae) in Iran, distribution and morphological variability, Zootaxa 4590 (1), pp. 95-124 : 97-98

publication ID	https://doi.org/ 10.11646/zootaxa.4590.1.4
publication LSID	lsid:zoobank.org:pub:A830F9D5-EB71-4834-AEAD-B9E2DAC1E9D7
persistent identifier	https://treatment.plazi.org/id/5824DB5E-F86E-FFAD-F4F5-4DB0FBBB50D3
treatment provided by	Plazi
scientific name	Diolcogaster Ashmead, 1900
status

Treatment

Genus Diolcogaster Ashmead, 1900 View in CoL View at ENA

Diolcogaster Ashmead, 1900: 132 View in CoL (description). Mason, 1981: 113 (redescription). Type species: Microgaster brevicaudus Provancher, 1886: 140 , by monotypy, Lectotype ♀ — Québec, Canada [ECLU, Provancher’s collection, no. 1167, Figs 16 View FIGURE 16 F–16G].

Zadiolcogaster Viereck, 1913: 366 (description). Type species: Zadiolcogaster anomus Viereck, 1913: 366 . Holotype ♀ — Asuncion, Paraguay [ZMHB, Figs 2 View FIGURE 2 A–2F].

Diagnosis. Pronotum rarely with dorsal sulcus ( Figs 2C View FIGURE 2 , 4A View FIGURE 4 , 6A View FIGURE 6 , 8A View FIGURE 8 , 10A View FIGURE 10 , 12A View FIGURE 12 , 14A View FIGURE 14 ); when an areola is absent, propodeum with medio-longitudinal carina strong and complete, usually rugose but occasionally smooth ( Figs 2 View FIGURE 2 E–2F, 4B, 6B, 8B, 10B, 12B, 14B); fore wing with areolet in variable sizes, sometimes areolet small or poorly delimited posteriorly, veins 3RSa and/or r-m might be unpigmented but still visible ( Figs 2B View FIGURE 2 , 4F View FIGURE 4 , 6 View FIGURE 6 F–6G, 8F, 10F, 12F, 14F); metacoxa large, extending to or beyond end of T3 ( Figs 2A View FIGURE 2 , 3A, 3C View FIGURE 3 , 4E View FIGURE 4 , 5A View FIGURE 5 , 7A View FIGURE 7 , 8E View FIGURE 8 , 9A View FIGURE 9 , 10E View FIGURE 10 , 11A View FIGURE 11 , 12E View FIGURE 12 , 13A View FIGURE 13 , 14E View FIGURE 14 ); inner metatibial spur always longer than outer spur, its length varying from half-length of basitarsus to longer than hind basitarsi ( Figs 2 View FIGURE 2 A–2B, 3C, 5C, 7C, 9C, 11C, 13C); T1 anteriorly with a sharp medio- longitudinal sulcus through most of its length, varying from absent, shallow and small, short and expanded apically to strongly narrowed, strap-shaped ( Figs 2 View FIGURE 2 E–2F, 4C, 6C, 7C, 10C, 12C, 14C); T2 usually with a triangular median field, which can be varies on different asymmetric shapes, sometimes without median field ( Figs 4 View FIGURE 4 C–4D), T3 smooth, but strongly rugose when the second one is similarly sculptured ( Figs 2 View FIGURE 2 E–2F, 4C–4D, 6C–6D, 8C, 10C–10D, 12C–12D, 14C–14D); ovipositor and ovipositor sheaths short and barely exerted, ovipositor sheaths usually with dense setae near apex and in most species with a few modified strong setae ( Figs 2A View FIGURE 2 , 4E View FIGURE 4 , 6E View FIGURE 6 , 8E View FIGURE 8 , 112E, 14E).

Global distribution. Cosmopolitan, but more diverse in tropics.

The number of species. Diolcogaster is with 101 described valid species currently the seventh largest genus of Microgastrinae ( Yu et al. 2016; Fernandez-Triana 2018; Salgado-Neto et al. 2018).

Hosts. Solitary or gregarious koinobiont endoparasitoids of various macrolepidoptera.

* The included ratios for D. alvearia obtained from examined specimens from Israel.