Cylindera (Eugrapha) biprolongata (W. Horn, 1924)

Matalin, A. V., 2018, New records of tiger beetles (Coleoptera, Carabidae: Cicindelinae) from Cambodia, Far Eastern Entomologist 356, pp. 9-16 : 13-14

publication ID	https://doi.org/ 10.25221/fee.356.2
publication LSID	lsid:zoobank.org:pub:E8D074B6-4371-41BF-B000-D8695E19C4ED
persistent identifier	https://treatment.plazi.org/id/0623284A-FF8E-FFD8-74D8-9F34FE4FFBD0
treatment provided by	Felipe
scientific name	Cylindera (Eugrapha) biprolongata (W. Horn, 1924)
status

Treatment

Cylindera (Eugrapha) biprolongata (W. Horn, 1924) View in CoL

Figs 11, 13, 15 View Figs 11–16

MATERIAL EXAMINED. Cambodia: Stung Treng Province, near Anlung Chheuteal,

island on Mekong River , sandy bank, 2.XII 2017, 1♂, 1♀, leg. A. Kompantsev ( MPU) .

NOTES. This species is definitely known from northeastern Thailand: Loei and Nakhon

Phanom provinces ( Naviaux, 1991; Naviaux & Pinratana, 2004), northern, northwestern and central Laos: Borikhamxay, Phongsaly and Vientiane provinces (Wiesner, 1999; Wiesner &

Geiser, 2016), and southern China: Yunnan Province (Matalin, 2002; Shook & Wu, 2007).

According to Naviaux ( Naviaux, 1991; Naviaux & Pinratana, 2004), C. (E.) biprolongata is very abundant in Thailand in riparian habitats of the Mekong river valley. Thus, the first discovery of this species on the opposite, Cambodian bank of Mekong River is hardly sur-

prising. Interestingly, Rivalier (1961) recorded Cylindera (Eugrapha) venosa (Kollar, 1836)

from Cambodia, a species distributed in Pakistan, Nepal, India, Bangladesh and Myanmar

(Acciavatti & Pearson, 1989; Wiesner, 1992). However, this species has been found in neither Thailand ( Naviaux, 1991; Naviaux & Pinratana, 2004) nor Laos (Wiesner & Geiser,

2016). Therefore, it is C. (E.) biprolongata , not C. (E.) venosa , that seems to occur in Cambodia. Both C. (E.) venosa and C. (E.) biprolongata show a similar white elytral pattern, both differ well from each other ( Figs 13–14 View Figs 11–16 ; see also Horn, 1938: Taf. 51, figs 13–14 and

Matalin, 2002: figs 9–10). Moreover, these species are easy to recognize by the shape of the labrum (see Matalin, 2002: figs 7–8), the number of setae in the penicillus on male anten-

nomere 4 ( Figs 11–12 View Figs 11–16 ), as well as the size and shape of the aedeagus ( Figs 15–16 View Figs 11–16 ). The new record greatly expands the known distribution area of C. (E.) biprolongata to the south.

14, 16 – C. (E.) venosa ; 11, 12 – antennomeres 2–4; 13, 14 – right elytron; 15, 16 – aedeagus,

left lateral view.