Synonyms and other taxonomic changes
Species were revised and keyed by Bradley (1928).
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Bradley (1928, 1957, 1964) treated Dielis as a subgenus of Campsomeris. Betrem (1962) investigated the type species of the genus. Argaman (1996) assigned generic status to Dielis, which was implicitly supported by Osten (2005).
The validity of generic status remains supported by Khouri, Gillung, & Kimsey (2022), though
D. pilipes consistently fell within
Xanthocampsomeris and well outside other
Dielis.
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Explanation of Names
Dielis Saussure & Sichel, 1864
Identification
Forewing with 2 submarginal cells and 2 recurrent veins (venation shared with Pygodasis and Xanthocampsomeris). Most species of Dielis have pale setae on the body.
Overview of Females
Dielis dorsata: Abdomen with extensive orange on T2-3 and with pale fringe; wings dark. Range: Florida
Dielis pilipes: Abdomen with bright yellow bands on T1-T4; pronotum often with two small, yellow spots; collar of pronotum with pale, never brownish setae. Range: western US, east to just barely beyond the western and panhandle borders of Texas
Dielis plumipes confluenta: Abdomen with pale yellow on T1-T4 forming broad bands (esp. T2); collar of pronotum with deeply to faintly brownish setae. Range: central US south to the Texas panhandle, east to Ohio
Dielis plumipes fossulana: Abdomen with pale yellow on T1-T4 forming very narrow bands; collar of pronotum with deeply brownish setae. Range: southeastern US, west to east Texas, north to about North Carolina or Virginia
Dielis plumipes plumipes: Abdomen with pale yellow on T1-T4 forming broad bands (esp. T2); collar of pronotum with deeply to faintly brownish setae. Range: eastern US from North Carolina, west slightly into Tennessee and Kentucky, north to about Massachusetts
-no photo-
Dielis tejensis: Female unknown. Range: Texas
Dielis tolteca: Abdomen with extensive orange on more than T2-T4 and with distinct orange fringe from T2 and beyond; wings darkened. Range: western US, east to south-central Texas
Dielis trifasciata nassauensis : Abdomen with very narrow bright yellow bands on T1-T3 or -T4. Range: Florida
Dielis trifasciata trifasciata : Abdomen with extensive bright yellow on T1-3. Range: Florida
Overview of Males
Dielis dorsata: Abdomen with pale yellow bands on T1-T4; legs sometimes marked with pale yellow; pronotum with narrow yellow band; scutellum and poscscutellum with very narrow bands; clypeus black medially with pale yellow at the margins forming a Ʌ shape. Range: Florida
Dielis pilipes: Abdomen with yellow bands on T1-T5. Range: western US, east to just barely beyond the western and panhandle borders of Texas.
Dielis plumipes confluenta: Abdomen with broad, pale yellow bands on T1-T4 (esp. T3); pronotum, clypeus, and legs entirely black; black regions of abdomen with slight blueish reflections. Range: central US south to the Texas panhandle, east to Ohio
Dielis plumipes fossulana: Abdomen with narrow, pale yellow bands on T1-T4; pronotum, clypeus, and legs entirely black. Range: southeastern US, west to east Texas, north to about North Carolina or Virginia
Dielis plumipes plumipes: Abdomen with broad, pale yellow bands on T1-T4 (esp. T3); pronotum, clypeus, and legs entirely black; black regions of abdomen with slight greenish reflections. Range: eastern US, from North Carolina and western Tennessee and Kentucky north to about Massachusetts
Dielis tejensis: Abdomen with yellow bands on T1-T5. Range: Texas
Dielis tolteca: Abdomen with yellow bands on T1-T4; pronotum usually with distinct yellow band (may be absent in western specimens); legs sometimes yellow-marked. Range: western US, east to south-central Texas
Dielis trifasciata nassauensis : Abdomen with very narrow bright yellow bands on T1-T4; legs conspicuously marked with bright yellow; pronotum with distinct yellow band; scutellum and postscutellum with broad yellow bands; clypeus yellow with large median black region. Range: Florida
Dielis trifasciata: Abdomen with bright yellow on T1-T4; legs conspicuously marked with bright yellow; pronotum with distinct yellow band; scutellum and postscutellum with broad yellow bands; clypeus entirely yellow apart from a small median spot. Range: Florida
Print References
Argaman Q. (1996) Generic synopsis of Scoliidae (Hymenoptera, Scolioidea). Annales Historico-Naturales Musei Nationalis Hungarici, 88: 171–222.
Betrem J.G. (1962) The taxon
Dielis (Hymenoptera: Scoliidae) and its type.
Entomological News, 73: 205–207.
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Bradley J.C. (1957) The taxa of
Campsomeris (Hymenoptera: Scoliidae) occurring in the New World.
Transactions of the American Entomological Society, 83: 65–77.
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Bradley J.C. (1964) Further notes on the American taxa of
Campsomeris (Hymenoptera: Scoliidae).
Entomological News, 75: 101–108.
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Osten T. (2005) Checkliste der Dolchwespen der Welt (Insecta: Hymenoptera, Scoliidae).
Bericht der Naturforschenden Gesellschaft Augsburg, 62: 1–62.
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