Scolomus Townes & Townes, 1950

Scolomus Townes & Townes, 1950 View in CoL View at ENA

Scolomus Townes and Townes 1950: 420 View in CoL . Type species: Scolomus viridis Townes & Townes, 1950 View in CoL , by original designation.

Apolophus Townes 1971: 111. Type species: Apolophus borealis Townes, 1971, by original designation.

Diagnosis.

The head is elongate, with an exceptionally long malar space measuring 1.20–1.80 × the basal mandibular width. The clypeus is large, subquadrate, and with the clypeal sulcus weakly impressed or absent, which results in the face and clypeus forming a nearly uniform, smooth plane in most species. The occipital carina is ventrally incomplete. The mandible is slender, with the lower tooth 0.50–1.00 × the length of the upper tooth. The fore wing features a rhomboid to pentagonal areolet (areolet lightly petiolate in S. valenzuelai sp. nov.), and the pterostigma is broad and triangular, with a maximum length 2.30–3.00 × its maximum width. In the hind wing, the basal abscissa of vein M + Cu 1 is strongly arched, and the distal abscissa of vein Cu 1 connects to vein cu-a much closer to vein 1 A than to vein M. The first metasomal tergite exhibits an anterior median depression bordered laterally by raised edges. The glymma is deep, converging at the midline, and often separated only by a translucent partition. In females, the hypopygium is large and arched but not folded medioventrally. The ovipositor is slender, slightly upcurved, and lacks a dorsal subapical notch.

Distribution.

The genus is distributed in the Holarctic region ( Austria, England, Germany, Poland, Russia, Ukraine, and the United States of America) and Neotropical region ( Argentina, Chile, and Costa Rica), which includes the Andean biogeographic zone (sensu Morrone 2015).

Included species.

S. borealis ( Townes, 1971) (Nearctic, West Palearctic); S. clypeatus Araujo & Santos, 2018 (Andean); S. maculatus Araujo & Vivallo, 2018 (Andean); S. magellanicus Walkley, 1962 (Andean); S. talamanca (Gauld & Sithole, 2002) (Neotropical) ; S. viridis Townes & Townes, 1950 (Andean).