Dielis tolteca Saussure, 1857
Female. Body length 18.7 mm (range 13.9 mm – 27.7 mm); forewing length 14 mm; Structure. Clypeus dull with scattered punctures on upper margin, lower margin striated, middle striae tend to be stronger; interantennal area densely punctured; frons with sparse punctures; vertex and gena smooth with few punctures; pronotum densely punctured; dorsal surface or mesosoma with sparse and coarse punctures; coarse and close punctures on dorsal face of propodeum, posterior face of propodeum impunctate, with scattered punctures on the lateral and upper; hind tibial spurs spatulate. Color. Setae white; body black; ferruginous maculation on T2–T4 and sometimes T1; apical and subapical setae on T2–T6 ferruginous; wings dark with slight violaceous reflections (Fig. 11).
Male. Body length 15.4 mm (8.7 mm 19.9 mm); forewing length 11.6 mm; Structure. Clypeus margins, interantennal area and frons sparsely punctate; vertex and gena with some punctures; dorsal surface of mesosoma shiny, with shallow and scattered punctures; meso and metapleura covered with dense short appressed hairs; fore wings hairy along the anterior margin and the area without cells. Genitalia (Fig. 42E). Parameres robust gently curved inward, apex rounded, ventral face polished with long thick setae in the mid area; volsellae with long sparse setae. Color. Setae white, those on apical terga (T5–T7) and sterna (S5–S7) black; vertical yellow bands on lateral margins of clypeus; yellow transversal line on frontal face of pronotum; yellow maculations on scutellum, metanotum and apical part of tegulae; femurs with yellow bands; irregular yellow stripes on dorsal face of fore and mid tibiae, ventral face of femora; yellow bands on apical margins of T1–T4, and apical margin of S2–S4; wings hyaline (Fig. 12).
Distribution. NA and NT. Mexico: Baja California, Baja California Sur, Campeche, Chiapas, Coahuila, Guanajuato, Guerrero, Jalisco, Michoacán, Morelos, Oaxaca, Quintana Roo, Sinaloa, Sonora, Tabasco, Veracruz. El Salvador: San Salvador. Guatemala: Huehuetenango. Honduras: Comayagua. Nicaragua: Rivas (Map 3). Haiti and United States of America (Bradley 1828b; Hurd 1952; Porter 1981; MacKay 1987)