Scolomus Townes & Townes, 1950

Scolomus Townes & Townes, 1950: 420. Type species: Scolomus viridis Townes and Townes, by original designation. Apolophus Townes, 1971: 111. Type species: Apolophus borealis Townes, by original designation.

Diagnosis. Head elongate, malar space exceptionally long, 1.20–1.80× basal mandibular width; clypeus large, subquadrate, supra-clypeal suture weakly impressed to absent, thus in most species with face and clypeus forming approximately uniform smooth plane; occipital carina ventrally incomplete; mandible slender, lower tooth 0.50– 1.00× as long as upper tooth. Fore wing with areolet rhomboid to pentagonal; pterostigma broad and triangular, maximum length 2.30–3.00× its maximum width; hind wing with basal abscissa of vein M + Cu 1 strongly arched; distal abscissa of vein Cu 1 joining vein cu-a far closer to vein 1 A than vein M. First metasomal tergite with anterior median depression bordered laterally by raised sides, glymma deep, almost meeting at midline and often separated only by translucent partition; female hypopygium large, arched, but not folded medioventrally; ovipositor slender, slightly upcurved and lacking dorsal subapical notch.

Distribution. Widely distributed in the Holarctic and Neotropical regions, including the Andean biogeographic zone (sensu Morrone, 2015) but Townes stated he had examined undescribed species of Apolophus from Argentina, Chile, Colombia and Ecuador.

Included species. S. borealis Townes (Nearctic, West Palearctic); S. magellanicus Walkley (Andean); S. talamanca Gauld & Sithole (Neotropical); S. viridis Townes (Andean).