Nematode-induced demasculinization of Nearctic Dolichopodidae (Diptera) with five new synonyms Author Runyon, Justin B. text Zootaxa 2022 2022-01-24 5092 5 545 558 journal article 2447 10.11646/zootaxa.5092.5.3 851d995a-7acd-410b-9ab8-c38a81a2fc4f 1175-5326 5896385 5E84BAA2-9CD2-4471-93A2-56A468E69DF3 Dolichopus abbreviatus Van Duzee, 1921: 144 Potential infected species: unknown. Dolichopus abbreviatus was described from two male specimens, one from Labrador, Canada and one from Maine , USA . The face is wide and the hypopygium is “remarkably short” with small cerci. Van Duzee remarked that D. abbreviatus is similar to D. cuniculus Van Duzee and D. ramifer Loew (Van Duzee 1921: 145) . Dolichopus cuniculus is also potentially demasculinized (see below) and might prove synonymous with D. abbreviatus . Dolichopus ramifer is not likely to be the host species since both sexes have a stump vein (lacking in D. abbreviatus ) and shiny bluish frons (green in D. abbreviatus ), characters that are not expected to be altered by nematode infection.