Teloganella umbrata Ulmer 1939

(Figs 7–12, 17–21, 25, 26)

Teloganella umbrata Ulmer 1939: 517 (♀ imago);

Teloganella umbrata: Wang et al. 1995: 325 (larva, ♂ and ♀ imagoes, egg).

Material examined. MALAYSIA, Pahang, Taman Negera National Park: river Tahan, 500 m lower Lata Berkon Falls (6 km from mouth), 10.II.2005, coll. M. Chertoprud, 1 larva, 1 ♀ subimago with eggs extracted from larva [ZIN]; western entrance of Taman Negera National Park, 7 km ESE Merapoh, river Relau, 4°40.736'N, 102° 3.395E, 12–13.II.2006, coll. S. Melnitsky, 4 ♂ subimagoes [ZIN]. Sabah, trib. Moyog R., 11 mi E Panampung, Mile 17, 29.IX.1978, coll. GF & CH Edmunds, 5 ♂ imagoes, 3 ♀ imagoes [PERC]; Moyog R., 3 mi E Panampung, 28.IX.1978, coll. GF & CH Edmunds, 1 ♂ imago [PERC]. Mansuncun R., NE Kota Kinabalu, 18.VIII.1972, coll. WM Beck, Jr., 1 larva [PERC]. West Malaysia, trib. Selangor R., Mile 42, 13.IX.1978, coll. GF & CH Edmunds, 1 larva [PERC].

Diagnosis. Larva. Second segment of labial palp relatively narrow and long (Fig. 21). Abdominal segment III with relatively well-expressed paired submedian tubercles (Fig. 20); and with posterolateral projections variably, but very weakly expressed on lateral margins (Figs 7, 8), or apparently absent. Ventral lobe of tergalius II with one wide side process on costal branch (Fig. 9); ventral lobe of tergalius III with 2 side processes on costal branch and 3 side processes on anal branch (Fig 10); ventral lobe of tergalius IV with 2 side processes on costal branch and 2 side processes on anal branch (Fig. 11).

Alate stages. Hind wing with costal projection directed anteriorly (Fig. 26). Black hypodermal maculae occupy lesser part of abdomen: terga I–V with few black maculae, with narrow black line medially; median area of terga VI–IX with few black maculae, tinged with rose; median area of sterna without black maculae; process of styliger medially light, with black lateral margins (Fig. 19). Process of styliger narrower than penis (Fig. 25; Wang et al. 1995: Fig. 8).

Distribution. Malay Peninsula (western Malaysia: Pahang) (this study); Borneo Island (eastern Malaysia: Sabah; Indonesia: East Kalimantan) (Wang et al. 1995, Sartori et al. 2003); Sumatra Island (Ulmer 1939).