Tribe Smicromyrmini Bischoff, 1920

(Figs 1–47)

Smicromyrmini Bischoff, 1920: 23 .

Smicromyrminae: Invrea 1964: 151.

Diagnosis. MALE. Eye without setae; inner margin deeply notched. F1 length ~0.8 × that of F2. Scutellum simple, without median carina or postero-lateral denticle. Wing venations not reaching its apex; distance between origin of RS on vein Sc and base of stigmatic cell nearly 2 × stigmatic cell length; hind wing without anal lobe. Claws without inner denticles. Metasomal segment 1 narrow; segment 2 with lateral felt line on T and sometimes on S; S8 not reduced, plate-like; genitalia with symmetrical penis valves. FEMALE. Head not enlarged; eye oval, slightly protruding from head capsule, without setae; Maxillary palpus six segmented; labial palpus four segmented. Mesosoma widest at pronotum or propodeum; mesopleuron concave; meso-metapleural suture ending at pronotal spiracle; dorsum of propodeum without row of denticles. Claws without inner denticles. T1 much narrower than T2, not petiolate; T2 with one median, two transverse (some Mickelomyrme Lelej, 1995) or three transverse basal spots of pale setae, rarely with one basal, two lateral and one apical spot (some Physetopoda Schuster, 1949) or without any spots; T2 rarely with basal band of pale setae (some Dentilla Lelej, 1980).

Genera included. 26 genera and four subgenera. See Brothers & Lelej (2017). The genera Smicromyrme Thomson, 1870, Nemka Lelej, 1985, Mickelomyrme Lelej, 1995, Andreimyrme Lelej, 1995, Ephucilla Lelej, 1995 and Sinotilla Lelej, 1995 are recognized from Japan.

Distribution. Afrotropical, Palaearctic and Oriental regions (Lelej 2007).