Maritime Forestfly
http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org:TaxonName:6113
(Figs. 4, 55‒60)
Nemoura macdunnoughi Ricker 1947:403. Holotype male (Canadian National Collection), Baddeck, Cape Breton Island, Nova Scotia, Canada
Nemoura (Podmosta) macdunnoughi: Ricker, 1952:42
Podmosta macdunnoughi: Illies, 1966:219
Nemoura (Podmosta) macdunnoughi: Harper & Hynes, 1971:1137
Nemoura (Podmosta) macdunnoughi: Hitchcock, 1974:100
Distribution. Canada: LB, NB, NF, NS, PE, PQ. USA: ME, MN, NY (DeWalt et al. 2022)
Male. Macropterous. Body length 4.0– 4.8 mm, forewing length 4.7–4.9 mm (n = 3). Gills absent. Cerci simple and unmodified (Figs. 55‒56). Paraprocts undivided as a lightly sclerotized triangular lobe. Epiproct short and complex, anteriorly-recurved fully over abdomen (Figs. 55‒57); dorsal sclerite broadly rounded basally (Figs. 56‒ 58), extending anteriorly as paired lobes sparsely covered by small spinules (Figs. 56‒58) and dorsally as short bifurcated lateral arms (Figs. 57‒58); ventral sclerite narrow basally, laterally expanded in apical ½, overall t-shaped anteriorly, medially concave (Figs. 56‒57).
Female. Macropterous. Body length 5.4–6.5 mm, forewing length 4.8–5.9 mm (n = 6). Gills absent. Cerci simple and unmodified (Figs. 59‒60). Subgenital plate of 8 th tergum scarcely extending over anterior margin of 9 th tergum, with a dark sclerotized medial band that is apically concave (Figs. 59‒60). The 7 th sternum is membranous and barely produced over the anterior margin of the 8 th tergum (Figs. 59‒60).
Larva. Described by Harper & Hynes (1971). Ricker (1947) also provided a partial illustration.
Comments. Podmosta macdunnoughi is the only species of this Holarctic genus distributed in eastern North America (DeWalt et al. 2022).