Taeniopterygidae, Klapalek, 1905

Verdone, Chris J., Williams, Bronwyn W., Beaty, Steven R., Holland, Victor B., Grubbs, Scott A. & Dewalt, Edward, 2025, The adults, larvae, and systematics of the Nearctic Oemopteryx Klapálek, 1902 (Plecoptera: Taeniopterygidae), Zootaxa 5595 (1), pp. 1-94 : 12

Taeniopterygidae genera adult female key

1 Each coxa with gill scars (GS in Fig. 1C ); ninth sternum only extending to base of paraprocts ( AS 9 in Fig. 1B )............................................................................................ Taeniopteryx Pictet, 1841

1’ Each coxa without gill scars; ninth sternum extending well beyond base of paraprocts ( AS 9 in Figs 2E , 3E , 4E , 5E , 8E , 15E , 21E , 28E , 34E , 40E , 45E )............................................................................... 2

2 Forewing without costal crossveins between humeral crossvein and the apical posterior subcostal crossvein ( Figs 2D , 8D , 15D , 21D , 28D , 34D , 40D , 45D )............................................................................. 3

2’ Forewing with 1–5 costal crossveins between humeral crossvein and the apical posterior subcostal crossvein (ccv in Figs 3D , 4D , 5D )............................................................................................. 4

3 Sternum-9 triangular, evenly tapering from base; free portion of sternum-9 usually pale ( AS 9 in Fig. 2E )...................................................................................... Bolotoperla rossi Ricker & Ross, 1975

3’ Sternum-9 parabolic; free portion of sternum-9 usually brown ( AS 9 in Figs 8E , 10A , 15E , 17A , 21E , 23A , 28E , 30A , 34E , 36A , 40E , 42A , 45E , 47A )............................................................. Oemopteryx Klapálek, 1902

4 Posterior Radius vein of forewing with 3–4 branches (RP in Fig. 3D ) and anterior Cubitus vein with 4–5 branches (CuA in Fig. 3D )......................................................... Doddsia occidentalis Needham & Claassen, 1925

4’ Posterior Radius vein of forewing wing with 2–4 branches (RP in Figs 4D , 5D ) and anterior Cubitus vein with 2–3 branches (CuP in Figs 4D , 5D ).................................................................................. 5

5 Length of free portion of sternum-9 at least as long as middle width of free portion ( AS 9 in Fig. 4E ).................................................................................................. Strophopteryx Frison, 1929

5’ Length of free portion of sternum-9 less than middle width of free portion ( AS 9 in Fig. 5E )....... Taenionema Banks, 1905

Figures

FIGURE 1. Taeniopteryx spp. A–C. Taeniopteryx burksi Ricker & Ross, 1968, Swain Co., North Carolina. A. Adult male terminalia, dorsal. B. Adult female terminalia, ventral. C. Adult thoracic sterna, ventral. D. Taeniopteryx ugola Ricker & Ross, 1968, Morgan Co., Tennessee, larval thoracic sterna. [morphological abbreviations: see Table 1].

FIGURE 2. Bolotoperla rossi. A–C. Adult male terminalia, Essex Co., New York. A. Lateral. B. Dorsal. C. Caudal. D–E. Adult female, Greenbrier Co., West Virginia. D. Forewing. E. Terminalia, ventral. F–G. Larva, Yancey Co., North Carolina. F. Right cercus, lateral. G. Right antenna, lateral. H. Watauga Co., North Carolina. Larva, male sterna, ventral. I. Yancey Co., North Carolina. Larva, female sterna, ventral. [morphological abbreviations: see Table 1].

FIGURE 3. Doddsia occidentalis, Garfield Co., Colorado. A–C. Adult male terminalia. A. Lateral. B. Dorsal. C. Caudal. D–E. Adult Female. D. Forewing. E. Terminalia, ventral. F–I. Larva. F. Right cercus, lateral. G. Right antenna, lateral. H. Male sterna, ventral. I. Female sterna, ventral. [morphological abbreviations: see Table 1].

FIGURE 4. Strophopteryx spp. A–E, G, I–J. Strophopteryx fasciata (Burmeister, 1839), Madison Co., North Carolina. A–C. Adult male terminalia. A. Lateral. B. Dorsal. C. Caudal. D–E. Adult female. D. Forewing. E. Terminalia, ventral. F. Strophopteryx arkansae Ricker & Ross, 1975, Durham Co., North Carolina, larva, right cercus, lateral. G. Larva, pro- and mesothoracic legs, anterior. H. Strophopteryx arkansae, larva, right antenna, lateral. I. Male sterna, ventral. J. Female sterna, ventral. [morphological abbreviations: see Table 1].

FIGURE 5. Taenionema atlanticum Ricker & Ross, 1975, Swain Co., North Carolina A–C. Adult male terminalia. A. Lateral. B. Dorsal. C. Caudal. D–E. Adult Female. D. Forewing. E. Terminalia, ventral. F–J. Larva. F. Right antenna, lateral. G. Left mandible, ventral. H. Right antenna, lateral. I. Male sterna, ventral. J. Female sterna, ventral. [morphological abbreviations: see Table 1].

FIGURE 8. Oemopteryx bimaculata sp. nov. adults., A–C. Hall Creek, Morgan Co., Tennessee. A. Male habitus, dorsal. B. Female habitus, dorsal. C. Male sterna, ventral. D. Daniel Creek, Dade Co., Georgia, female wings. E–F. Hall Creek, Morgan Co., Tennessee. E. Female sterna, ventral. F. Female forewing, lateral. [morphological abbreviations: see Table 1].

FIGURE 10. Oemopteryx bimaculata sp. nov., Daniel Creek, Dade Co., Georgia, adult female. A. Abdominal sterna, ventral. B. Subgenital plate. [morphological abbreviations: see Table 1].

FIGURE 15. Oemopteryx contorta, Cove Creek, Tazewell Co., Virginia, adults. A. Male habitus, dorsal. B. Female habitus, dorsal. C. Male sterna, ventral. D. Female wings. E. Female sterna, ventral. F. Female forewing, lateral. [morphological abbreviations: see Table 1].

FIGURE 17. Oemopteryx contorta, Hall Creek, Burke Co., North Carolina, adult female. A. Abdominal sterna, ventral. B. Subgenital plate. [morphological abbreviations: see Table 1].

FIGURE 21. Oemopteryx tuscarora sp. nov., Haystack Creek, Moore Co., North Carolina, adults. A. Male habitus, dorsal. B. Female habitus, dorsal. C. Male sterna, ventral. D. Female wings. E. Female sterna, ventral. F. Female forewing, lateral. [morphological abbreviations: see Table 1].

FIGURE 23. Oemopteryx tuscarora sp. nov., Haystack Creek, Moore Co., North Carolina, adult female. A. Abdominal sterna, ventral. B. Subgenital plate. [morphological abbreviations: see Table 1].

FIGURE 28. Oemopteryx fosketti, adults. A. Athabasca River, Athabasca Co., Alberta, Canada, male habitus, dorsal; forewing, lateral (circle inset). B. Colorado River, Grand Co., Utah, female habitus, dorsal. C. Athabasca River, Athabasca Co., Alberta, Canada, Male sterna, ventral. D–E. Colorado River, Grand Co., Utah. D. Female wings. E. Female sterna, ventral. F. Colorado River, Grand Co., Utah, Female forewing, lateral. [morphological abbreviations: see Table 1].

FIGURE 30. Oemopteryx fosketti, Delores River, Mesa Co., Colorado, adult female.A. Abdominal sterna, ventral. B. Subgenital plate. [morphological abbreviations: see Table 1].

FIGURE 34. Oemopteryx glacialis. A. Salmon River, Clinton Co., New York, male habitus, dorsal; forewing, lateral (circle inset). B. Saranac River, Clinton Co., New York, female habitus, dorsal. C. Salmon River, Clinton Co., New York, Male sterna, ventral. D–E. Saranac River, Clinton Co., New York. D. Female wings. E. Female sterna, ventral. F. Deer River, St. Lawrence Co., New York, Female forewing, lateral. [morphological abbreviations: see Table 1].

FIGURE 36. Oemopteryx glacialis, Lamoille River, Chittenden Co., Vermont, adult female. A. Abdominal sterna, ventral. B. Subgenital plate. [morphological abbreviations: see Table 1].

FIGURE 40. Oemopteryx leei, UT Butte Creek, Humboldt Co., California, adults. A. Male habitus, dorsal. B. Female habitus, dorsal. C. Male sterna, ventral. D. Female wings. E. Female sterna, ventral. F. Female forewing, lateral. [morphological abbreviations: see Table 1].

FIGURE 42. Oemopteryx leei, UT Butte Creek, Humboldt Co., California, adult female. A. Abdominal sterna, ventral. B. Subgenital plate. [morphological abbreviations: see Table 1].

FIGURE 45. Oemopteryx vanduzeea, UT Long Canyon, El Dorado Co., California, adults. A. Male habitus, dorsal. B. Female habitus, dorsal. C. Male sterna, ventral. D. Female wings. E. Female sterna, ventral. F. Female forewing, lateral. [morphological abbreviations: see Table 1].

FIGURE 47. Oemopteryx vanduzeea, UT Long Canyon, El Dorado Co., California, adult female. A. Abdominal sterna, ventral. B. Subgenital plate. [morphological abbreviations: see Table 1].