title: Description of the final-instar larva of Heliogomphus selysi Fraser (Odonata: Gomphidae).
abstract: The final instar larva of Heliogomphus selysi Fraser, 1925, is described and illustrated for the first time based on specimens collected in Ratchaburi province, Thailand. Antennae, legs and paraprocts are similar morphologically to H. kelantanensis and H. scorpio but with a unique combination of dorsal hooks and lateral spines.
authors.affiliation: Animal Systematics and Ecology Speciality Research Unit (ASESRU), Department of Zoology, Faculty of Science, Kasetsart University, Bangkok, Thailand 10900; Email: fscibtb@ku.ac.th.
authors.forename: Boonsatien
authors.initials: B
authors.lastname: Boonsoong
authors.affiliation: Animal Systematics and Ecology Speciality Research Unit (ASESRU), Department of Zoology, Faculty of Science, Kasetsart University, Bangkok, Thailand 10900; Email: unknown.
authors.forename: Damrong
authors.initials: D
authors.lastname: Chainthong
mesh_terms: D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D005260:Female; D007814:Larva / Q000033:anatomy & histology / Q000145:classification / Q000254:growth & development; D008297:Male; D063191:Odonata / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D013785:Thailand