Indocnemis orang ( Foerster in Laidlaw, 1907) forma orang

Phan, Quoc Toan, 2018, Notes on the genus Indocnemis Laidlaw, 1917 in Vietnam with description of Indocnemismarijanmatoki sp. n. (Odonata, Zygoptera, Platycnemididae), ZooKeys 809, pp. 15-29 : 17

Indocnemis orang ( Foerster in Laidlaw, 1907) forma orang Figures 1-4, 8, 17-20, 23, 24, 29, 30, 32

Examined specimens.

1 mature male, Pia Oac National Park, Cao Bang Prov., 16 May 2015; 1 mature female, Xuan Son National Park, Phu Tho Prov., 15 September 2015; 1 mature female, Vu Quang National Park, Ha Tinh Prov., 07 April 2015; 6 mature males, 5 mature females, Bach Ma National Park, Thua Thien Hue Prov., 27 June 2017; 1 mature male, 1 mature female, Sao La Nature Reserve, A Luoi District, Thua Thien Hue Prov., 18 September 2015; 1 mature male, 3 mature females, Deo Lo Xo, Phuoc Son District, Quang Nam Province, 05 August 2017; 3 mature males, 1 mature female, Nam Giang District, Quang Nam Prov., 25 May 2017; 1 mature male, 1 mature female, Bhalee, Tay Giang District, Quang Nam Prov., 18 September 2015; 1 mature male, 2 mature females, Ba Na Nature Reserve, Da Nang city, 25 May 2015; 1 mature male, Kon Chu Rang Nature Reserve, Gia Lai Prov., 11 March 2017; 1 mature male, Dak Roong, K’Bang District, Gia Lai Prov., 24 May 2018; 1 mature female, Chu Mom Ray National Park, Kon Tum Prov., 22 May 2017; 3 mature males, 1 mature female, Chu Yang Sin National Park, Dak Lak Prov., 19 May 2018; 1 mature male, Mang Canh, Kon Plong District, Kon Tum Prov., 22 September 2015; 1 mature male, 1 immature male, Maria pass, Bao Loc District, Lam Dong Prov., 16 March 2016; same location, 1 immature male, 3 mature female, 22 April 2016; 1 mature male, same location, 11 May 2017; 3 mature males, 1 immature male, 1 immature female, km19, Hon Ba Nature Reserve, Khanh Hoa Prov., 16 April 2017; 1 mature female, same location, 08 May 2015. All materials were collected by the author. 2 mature females, Kon Ka Kinh National Park, Gia Lai Prov., 6 April 2018, To Van Quang leg.

Remarks.

All examined immature males of Indocnemis orang forma orang differ from the mature specimens by the following characters: middle lobe of prothorax is mostly yellowish (Fig. 1) but this mark reduced to a very small dot on either side or absent in mature males (Fig. 23); large dorsal shield on synthorax yellow, not purple as in mature males (Fig. 1); metepimeron entirely yellowish (Fig. 1) but largely black in mature males (Fig. 23); dorsal S9-10 and whole appendages pale yellowish, whereas cerci are black with blue marks dorsally in mature males (Fig. 24). The immature females are very similar to mature ones except that dorsal head stripes and yellow spots in either side of middle lobe of prothorax broader and antehumeral stripe is yellow, not blue as in mature females (Figs 2, 3).