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 : 7

Taeniopterygidae genera adult male key

1 Each coxa with a gill scars (GS in Fig. 1C ), cercus composed of one segment (Ce in Fig. 1A )...... Taeniopteryx Pictet, 1841

1’ Each coxa without gill scars, cercus composed of more than one segment (Ce in Figs 2A–C , 3A–C , 4A–C , 5A–C , 9A , 16A , 22A , 29A , 35A , 41A , 46A )............................................................................. 2

2 Epiproct composed of an anterior and posterior prong (AEp and PEp in Figs 9E , 16E , 22E , 29E , 35E , 41E , 46E )......................................................................................... Oemopteryx Klapálek, 1902

2’ Epiproct composed of a single prong (Ep in Figs 2A–B , 3A–B , 4A–B , 5A–B )..................................... 3

3 Apex of 9 th sternal plate twisted, asymmetrical ( AS 9 in Fig. 2C ).................. Bolotoperla rossi Ricker & Ross, 1975

3’ Apex of 9 th sternal plate symmetrical ( AS 9 in Figs 3C , 4C , 5C )................................................. 4

4 Tergum-10 with paired, flattened, posteriorly directed anterior processes that are more than twice as long as their middle width (AP in Fig. 3B )................................................ Doddsia occidentalis Needham & Claassen, 1925

4’ Tergum-10 with paired anterior processes less than twice as long as their middle width (AP in Fig. 5B ), or without paired anterior processes on tergum-10 and with (PP in Fig. 4A–C ) or without paired posterior processes on tergum-9........... 5

5 Apex of 9 th sternal plate sharply upturned medially in lateral and caudal aspects ( AS 9 in Figs, 4A, C), always lacking paired processes on tergum-10; with (PP in Figs 4A–C ) or without paired posterior processes on tergum-9................................................................................................... Strophopteryx Frison, 1929

5’ Apex of 9 th sternal plate broadly upturned, scoop shaped ( AS 9 in Figs 5A–C ), usually with paired anterior processes on tergum- 10 (AP in Figs 5A–B ) (absent in T. grinnelli ( Banks, 1918)) ................................. 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 9. Oemopteryx bimaculata sp. nov., Green Branch, Morgan Co., Tennessee, adult male. A. Terminalia, dorsal. B. Terminalia, close, dorsal. C. Abdominal terga, dorsal. D. Terminalia, lateral. E. Epiproct, lateral. [morphological abbreviations: see Table 1].

FIGURE 16. Oemopteryx contorta, Pool Creek, Rutherford Co., North Carolina, adult male.A. Terminalia, dorsal.B. Terminalia, close, dorsal. C. Abdominal terga, dorsal. D. Terminalia, lateral. E. Epiproct, lateral. [morphological abbreviations: see Table 1].

FIGURE 22. Oemopteryx tuscarora sp. nov., Haystack Creek, Moore Co., North Carolina, adult male. A. Terminalia, dorsal. B. Terminalia, close, dorsal. C. Abdominal terga, dorsal. D. Terminalia, lateral. E. Epiproct, lateral. [morphological abbreviations: see Table 1].

FIGURE 29. Oemopteryx fosketti, Delores River, Mesa Co., Colorado, adult male. A. Terminalia, dorsal. B. Terminalia, close, dorsal. C. Abdominal terga, dorsal. D. Terminalia, lateral. E. Epiproct, lateral. [morphological abbreviations: see Table 1].

FIGURE 35. Oemopteryx glacialis, Lamoille River, Chittenden Co., Vermont, adult male. A. Terminalia, dorsal. B. Terminalia, close, dorsal. C. Abdominal terga, dorsal. D. Terminalia, lateral. E. Epiproct, lateral. [morphological abbreviations: see Table 1].

FIGURE 41. Oemopteryx leei, UT Butte Creek, Humboldt Co., California, adult male. A. Terminalia, dorsal. B. Terminalia, close, dorsal. C. Abdominal terga, dorsal. D. Terminalia, lateral. E. Epiproct, lateral. [morphological abbreviations: see Table 1].

FIGURE 46. Oemopteryx vanduzeea, adult male. A–B, D–E. UT Tuolumne River., Tuolumne Co., California. A. Terminalia, dorsal. B. Terminalia, close, dorsal. C. UT Mill Creek, Tehama Co., California, abdominal terga, dorsal. D. Terminalia, lateral. E. Epiproct, lateral. [morphological abbreviations: see Table 1].