Aphanogmus feltiellophagus, Mollaei & Sadeghi-Namaghi & Lotfalizadeh & Minab, 2025

Mollaei, Maedeh, Sadeghi-Namaghi, Hussein, Lotfalizadeh, Hossein & Minab, Farzad, 2025, Aphanogmus feltiellophagus sp. nov. (Hymenoptera: Ceraphronidae), a parasitoid of the acarivorous gall midge, Feltiella acarisuga Vallot (Diptera: Cecidomyiidae) in Iran, Journal of Insect Biodiversity and Systematics 11 (3), pp. 693-702 : 696

Key to species groups and species of Aphanogmus associated with acarivorous Cecidomyiidae ( Diptera )

1 Median mesoscutal sulcus present. ....................................................................................... fumipennis group

Note. in this group A. flavigastris Matsuo, 2016 was originally described from Japan as a parasitoid of Feltiella acarisuga (Vallot) and F. acarivora (Zehntner) it is characterised by scape about 0.6 times as long as height of head, pedicel 2.0–2.5 times as long as fu 1, fu 7 about 2.0 times as wide as fu1; POL about 3.5 times OD, OOL about 2 times OD; metasoma with basal carina present; fore wing with a darkly pigmented band, stigmal vein 1.4–1.5 times as long as marginal vein.

— Median mesoscutal sulcus absent. ........................................................................................................................ 2

2 Metasomal basal transverse carina absent. .......................................................................... clavicornis group

Note. in this group A. fulmeki Szelényi was reported as a parasitoid of F. acarisuga , F. acarivora , Aphidoletes aphidimyza (Rondani) , and Mycodiplosis sp. and its diagnostic characters are as follow: scape about 0.6 times as long as height of head, pedicel 2.1 times as long as fu 1, fu 7 about 1.8 times as wide as fu1; POL about 2.1 times OD, OOL about 2.3 times OD; metasoma without basal carina; fore wing hyaline, stigmal vein 1.5 times as long as marginal vein.

— Metasomal basal transverse carina present. ..................................................................... 3 [ tenuicornis group]

3 Fore wing hyaline, without dark band. .................................................................. A. feltiellophagus sp. nov. — Fore wing with a darkly pigmented band. .......................................................................................................... 4

4 Transverse band on the fore wing extends from subbasal to the basal half of the stigmal vein; stigmal vein distinctly curved, 1.8 times as long as the marginal vein; metasoma 1.4 times as long as mesosoma. .. .................................................................................................................................. A. cecidovorus Ranjith, 2023

— Transverse band present before marginal vein; stigmal vein straight, 1.5 times as long as the marginal vein; metasoma not longer than mesosoma. ...................................................... A. floridanus Ashmead, 1893