Parahiraciini planthoppers with elongate head from Vietnam: a new genus and species Pumatiracia venosa gen. et sp. nov. and first record of Laohiracia acuta Constant, 2021 (Hemiptera, Fulgoromorpha, Issidae) Author Constant, Jerome https://orcid.org/0000-0003-0254-0863 Royal Belgian Institute of Natural Sciences, O. D. Taxonomy & Phylogeny - Entomology, Vautier street 29, B- 1000 Brussels, Belgium jconstant@naturalsciences.be Author Pham, Thai Hong https://orcid.org/0000-0002-4763-3679 Mientrung Institute for Scientific Research, Vietnam National Museum of Nature, VAST, 321 Huynh Thuc Khang, Hue, Vietnam & Graduate School of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam phamthai1976@yahoo.com text ZooKeys 2023 2023-06-08 1166 103 119 http://dx.doi.org/10.3897/zookeys.1166.101444 journal article http://dx.doi.org/10.3897/zookeys.1166.101444 1313-2970-1166-103 362C54108ABA48A4880C056BF68B23F6 1BB6324D5B4B5443A6C1B84EC2844A11 Laohiracia acuta Constant, 2021 Figs 5A , 6 Laohiracia acuta Constant, 2021: 8, figs 1-4. Note. The species was described from Laos, Hua Phan province, Mt Phu Pane, 900-1600 m. It is here recorded from Vietnam for the first time. Material examined. Vietnam • 2♂♂ , 3♀♀ ; Thanh Hoa Province , Pu Luong National Park ; 20°27'48"N , 105°07'38"E ; 5-10 Aug. 2022 ; 1700 m ; [sweeping]; GTI project; leg. J. Constant, J . Bresseel & L. Semeraro ; I.G.: 34.518; RBINS • 2♂♂ , 2♀♀ ; same collection data as preceding; VNMN . Biology. The species was found in mountain forest (Fig. 6D ) belonging to the northern Indochina subtropical forests ecoregion, at the summit of Mount Pu Luong (1700 m). The specimens were collected by sweeping and visual screening of the lower vegetation and bushes up to 2 m high; they were sitting on the leaves (Fig. 6A-C ). The trees growing on the summit are considerably shorter (usually <10 m in height) in size than those growing in the well-preserved forests on the slopes and down the mountain (trees> 30 m). This also provides a habitat with more light than in the rest of the forest. The species seemed to be restricted to the summit as extensive sampling along the slopes of Mount Pu Luong and at lower altitude in Pu Luong National Park, did not provide any additional specimen, although other Issidae species were collected (pers. obs.). The host plant is unknown. Figure 6. Laohiracia acuta Constant, 2021 in Vietnam, Pu Luong National Park, summit of Mount Pu Luong, 1700 m, 8 August 2022 A-C live specimen D habitat. Distribution. (Fig. 5A ) Laos: Hua Phan Province; Vietnam: Thanh Hoa Province (new country record).