Larval Psephenidae (Coleoptera: Byrrhoidea) of Thailand: Annotated List and Illustrated Key to Genera Author Shepard, William D. Author Sites, Robert W. text The Coleopterists Bulletin 2019 2019-06-21 73 2 259 282 http://dx.doi.org/10.1649/0010-065x-73.2.259 journal article 10.1649/0010-065X-73.2.259 1938-4394 5454617 Jaechanax Lee, Satô, and Yang, 2000 Figs. 3 , 26 , Map A Discussion. Jaechanax is a relatively small genus, with six species distributed from Thailand east to Laos and south through Malaysia , Indonesia , and the Philippine Islands . In Thailand , Jaechanax major (Pic, 1913) is reported from Bana, Yala Province : Betong, and Satun Province : Thale Ban ( Lee et al. 2000b ; Lee 2016 ). Figs. 4–6. Setal fringes. 4) Schinostethus ; 5) Undescribed Eubrianacinae ; 6) Psephenoidinae : pharate larva. Material Examined. Kalasin Province : Phu Pan N. P., 4 June 1998 , Huay Pla Duk , stream w/ boulders & veg., L-148, Sites , Simpson , Vitheepradit (1L) . Kanchanaburi Province : Thong Pha Phum Reforestation Station , Nam Tok Pong Kra Dang Nga , 203 m , 14°31’N 98°37’E , 12 April 2002 , L-334, UMC and CMU teams (1L) . Lampang Province : 7 km SW Sop Prop , 23 III 1994 , Mae Nam Wang (WDS-A-1041 on reverse), William D. Shepard , leg. (3L) . Loei Province : 2 km W Phu Kradung , 4 IV 1994 , Lam Phong Ko (WDS-A-1052 on reverse), William D. Shepard , leg. (3L) . Nakon Ratchasima Province : Khao Yai National Park , Heaw Narok Waterfall , 400 m , 14°17’N 101°23’E , 5 April 2004 , L-601, Sites & Vitheepradit (1L) . Phitsanulok Province : Phu Hin Rongkla National Park , Nam Tok Romglao , rock face, 1190 m , 16°59’N 101°00’E , 6 May 2003 , L-507, Vitheepradit , Prommi , Ferro (1L) . Phrae Province : Wieng Ko Sai N. P. , Nam Tok Mae Koeng Luang , 350 m , 17°58’N 99°35’E , 14 III 2002 , L-295, Sites , Vitheepradit , Kirawanich (1L) . Ratchaburi Province : Amphur Pak Tho , TumbonYang Hak , creek w/ no name, 200 m , 13°19’N 99°33’E , 18 April 2002 , L-353, Vitheepradit , Kirawanich (1L) . Sakhon Nakhon Province : 11 km NE Kham Poem , 5 III 1994 , Huai Ya (WDS-A-1027 on reverse), William D. Shepard , leg. (5L) . Songkhla Province : Amphur Hat Yai , stream from Ton Nga Chang Waterfall at Buddhist temple, 78 m , 06°56’N 100°15’E , 3 May2002 , L-388 AV, Kirawanich, Suwonno (1L).