Teloganopsis jinghongensis ( Xu, You & Hsu, 1984 )

Martynov, Alexander V., Selvakumar, C., Subramanian, K. A., Sivaramakrishnan, K. G., Vasanth, M., Sinha, Bikramjit & Jacobus, Luke M., 2021, Overview of Indian Hyrtanellini (Ephemeroptera: Ephemerellidae), with new species and records from related regions, Zootaxa 4975 (3), pp. 451-482 : 453-454

Teloganopsis jinghongensis ( Xu, You & Hsu, 1984)

( Fig. 1 )

Ephemerella jinghongensis Xu, You & Hsu 1984

Serratella hainanensis She, Gui & You, 1995 (junior synonym, Zhou et al. 2006)

Serratella albostriata Tong & Dudgeon, 2000 (junior synonym, Zhou et al. 2006) Material examined. INDIA: 10 larvae, Arunachal Pradesh, Lower Subansiri District, Tale Valley, 27.537201°N, 93.959883°E, h ~ 2370 m a.s.l., 14.iv.2015, Coll. K.A. Subramanian (Reg. No. 5604/H13); 1 larva, Arunachal Pradesh, Papum Pare District, Dibru river, 27.147655°N, 93.74908°E, h ~ 128 m a.s.l., 22.iv.2015, Colls. K.A. Subramanian & Bikramjit Sinha—Reg. No. 5605/H13 [ZSI]; 1 larva, Nagaland, Intanki National Park, Intanki River, 25.39048°N, 93.31913°E, h ~ 206 m a.s.l., 24.iii.2016, Coll. C. Selvakumar—Reg. No. 5543/H13 [ZSI]. THAILAND: 1 larva (in slide number 618) Chiang Mai Province, Chom Thong District, Doi Inthanon National Park, Klang River, 19.xi.2009, Palatov D.M. leg.—IN Thai2Teljin [NMNH NASU]; 4 larvae, Chiang Mai Province, Mae Chem district, valley of Mae Chem River, Yot River, 1 km upstream from mouth, h ~ 600 m a.s.l., 23.xi.2009, Palatov D.M. leg.—IN Thai4Teljin [NMNH NASU]; Chiang Mai Province, Chom Thong District, stream—left tributary of the Klang Phat River, 1 km above highway of Doi Inthanon National Park), 18.558022°N, 98.557031°E, h ~ 1130 m a.s.l., 17.xi.2009, Palatov D.M. & Chertoprud M.V. leg.—IN Thai5Teljin [NMNH NASU].

Diagnosis. This species can be distinguished from other Teloganopsis species by the following combination of characters: larva: (i) dorsal surface of body often with light, longitudinal, yellowish band formed by spots on head, pronotum, mesonotum and on abdominal terga V and VIII, but sometimes with only small spots on thorax and abdomen being presented, and therefore no obvious longitudinal band ( Fig. 1A, B ; fig. 1 in Tong & Dudgeon 2000); (ii) labrum, mandibles and labium without long hair-like setae (figs 5, 6, 9–11 in Tong & Dudgeon 2000); (iii) mandible canine not elongated (figs 9, 10 in Tong & Dudgeon 2000); (iv) inner margin of maxilla with a continuous row of setae ( Fig. 1C ; fig. 11 in Tong & Dudgeon 2000); (v) maxillary palp absent ( Fig. 1C ; fig. 11 in Tong & Dudgeon 2000); (vi) thorax without tubercles (fig. 1 in Tong & Dudgeon 2000); (vii) inner margins of fore tibia and fore tarsus without long hair-like setae; (viii) paired tergal projections absent; (ix) posterolateral projections of abdominal segments IV–IX strongly marked ( Fig. 1A ); (x) dorsal surface of forefemur with transversal row of long spatulate setae and with the same kind setae along outer margin of the femur ( Fig. 1D ; fig. 8 in Tong & Dudgeon 2000); (xi) caudal filaments light yellowish-brown with dark brown medial and apical bands ( Fig. 1B ; fig. 12 in Tong & Dudgeon 2000). Male imago: (xii) penis short, projection of penis small, not visible in ventral view (fig. 2 in Tong & Dudgeon 2000; fig. 8D in Zhang et al. 2017).

Distribution. China ( Xu et al. 1984; Tong & Dudgeon 2000; Zhou et al. 2006), India and India-China border region (new data), and Thailand ( Jacobus & McCafferty 2008, new data).

Remarks. This species originally was described based on adults from China ( Xu et al. 1984). Zhou et al. (2006) provided revisions to this species, including the recognition of new junior synonyms. The larva of this species (as Serratella albostriata Tong & Dudgeon, 2000 , junior synonym) was described and illustrated sufficiently by Tong & Dudgeon (2000); the male imago was illustrated by Xu et al. (1984) and Zhang et al. (2017: figs 8b, d). Our new data represent the first report of this species from India and the India-China border region, in particular. Ubero-Pascal & Sartori (2009) revised the genus, and additional contributions have been made by Jacobus (2009), Sartori (2014), Zhang et al. (2017) and Gorovaya (2019). Other Indomalayan species include Teloganopsis brocha ( Kang & Yang, 1995) , T. gracilis (Tshernova, 1952) , T. media Ulmer, 1939 , T. oriens Jacobus & McCafferty, 2006 , T. puigae Ubero-Pascal & Sartori, 2009 , and T. setosa Zhou (in Zhang et al.), 2017. Several potential new species remain undescribed.

Figures

FIGURE 1. Larva of Teloganopsis jinghongensis (Xu, You & Hsu, 1984). A, B.—total view of larva; C.—maxilla; D.—stout setae of fore femur; E.—tarsal claw; F.—gill III. Scale bars 1 mm.