Fig. 9. Porrorhynchus marginatus, dorsal habitus showing populational variation. A in Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini)

Fig. 9. Porrorhynchus marginatus, dorsal habitus showing populational variation. A) Mandalay District, Myanmar, B) Loei Province, Thailand, C) Khammouane Province, Laos, D) Đắk Lắk Province, Vietnam, E) Saraburi Province, Thailand, F) Chumphon Province, Thailand, G) Songkhla Province, Thailand, H) Pahang, Malaysia, I) Gunung Leuser, Sumatra, J) West Sumatra, Sumatra, K) Siberut Island, Sumatra, L) Manna, Sumatra, M) Java, N) Kapit District, Sarawak, Malaysia, O) East Kalimantan, Indonesia. Scale bars = 5 mm.