Amemboa (Amemboa) cristata Polhemus and Andersen

Nakthong, La-Au, Vitheepradit, Akekawat & Sites, Robert W., 2014, Key to the species of Eotrechinae (Hemiptera: Heteroptera: Gerridae) of Thailand and review of the fauna of the Phetchabun Mountain Range, Zootaxa 3860 (1), pp. 47-63 : 54

publication ID	https://doi.org/ 10.11646/zootaxa.3860.1.2
publication LSID	lsid:zoobank.org:pub:B9713C6D-BC3B-4EF2-8495-8BDCD535A80D
DOI	https://doi.org/10.5281/zenodo.6137515
persistent identifier	https://treatment.plazi.org/id/03DF879B-FFCD-FFD7-09C9-98674ADE34C4
treatment provided by	Plazi
scientific name	Amemboa (Amemboa) cristata Polhemus and Andersen
status

Treatment

Amemboa (Amemboa) cristata Polhemus and Andersen View in CoL

Figs. 11 View FIGURES 8 – 21 , 25 View FIGURES 22 – 35

Amemboa (Amemboa) cristata Polhemus and Andersen 1984 View in CoL : Steenstrupia 95−97.

Diagnosis. Males of A. cristata have the pygophore with a pair of large posterolateral lobes and a bifid tip ( Fig. 25 View FIGURES 22 – 35 ). Further, the male profemur has two elongate hair patches ( Fig. 11 View FIGURES 8 – 21 ), whereas A. javanica has a single hair patch and A. aquafrigida and A. speciosa each have three hair patches. Males of A. cristata have a proximally incrassate profemur, whereas A. brevifasciata has an unmodified proximal half of the profemur. Males of A. cristata lack a mid-ventral profemoral tumescence beyond the proximal hair patch, whereas A. riparia has a well-developed tumescence.

Discussion. Amemboa cristata has been recorded from China, Malaysia, Thailand, and Vietnam ( Polhemus & Andersen 1984, Zettel et al. 2007). In Thailand, this species has been collected previously from Chaiyaphum, Chiang Mai, Kanchanaburi, Krabi, Lampang, Mae Hong Son, Phetchabun, Phrae, Sara Buri, and Satun provinces ( Polhemus & Andersen 1984, Zettel & Chen 1997, Vitheepradit 2000). In this study, this species was collected at the margin of streams throughout the mountain range.

Material examined. THAILAND: Loei Province: Amphur Phu Rua, Plan Ba Waterfall, 17°23'N 101°22'E, 649 m, 10-V-2004, A. Vitheepradit and T. Prommi, L-675 (2 winged males, 4 winged females); Phetchabun Province: Nam Nao NP, Sum Ma Cow, 16°41'N 101°40'E, 562 m, 2-II-2011, KU team, C-24 (2 winged males, 53 winged females, 63 wingless females); same locality, XII-2012, KU team, C-238 (2 winged males, 16 wingless females); Nam Nao NP, Stream behind visitor center, 16°41’N 101°40'E, 562 m, 2-II-2011, KU team, C-26, (1 wingless male); same locality, 20-XII-2012, KU team, C-236 (4 winged males, 14 wingless males, 1 winged female, 20 wingless females).

Kingdom	Animalia
Phylum	Arthropoda
Class	Insecta
Order	Hemiptera
Family	Gerridae
SubFamily	Eotrechinae
Genus	Amemboa
SubGenus	Amemboa