Micronecta (Micronecta) ornitheia Nieser, Chen & Yang, 2005

Ha, Tuyet Ngan & Tran, Anh Duc, 2021, Taxonomy of Micronectidae (Heteroptera: Nepomorpha) from Vietnam, with descriptions of 11 new species, European Journal of Taxonomy 756, pp. 1-82 : 44-48

Micronecta (Micronecta) ornitheia Nieser, Chen & Yang, 2005

Figs 13A , 14A–D

Micronecta ornitheia Nieser, Chen & Yang, 2005: 190 , 197–200, figs 32–41 (type locality: Yunnan, China).

Micronecta ornitheia – Chen, Nieser & Sangpradub 2006: 779 (record Thailand).

Diagnosis

Body length 1.7–1.8. Pronotum longer than median head length. Dorsum generally light brown. Hemelytron with small, irregular-shaped reddish marks, mostly on costal part; embolium with a longitudinal dark grey stripe and two brown patches ( Fig. 13A ).

Males: fore femur with two spines on middle third, a spine on distal third dorsally, and a pair of spines distally; fore tibia with three large and one small spine on distal third; palar claw distally widened, apical margin rounded. Median lobe of sternite VII narrow, with pointed apex and four long setae ( Fig. 14A ). Free lobe slightly expanded distally, mesial angle rounded, lateral angle slightly produced with ca 20 long setae, posterior margin nearly straight ( Fig. 14B ). Left paramere: shaft broad, flat, with a deep notch along lateral margin near base, then followed by a triangular projection, distal part parallel sided, apex of paramere rounded; basal lobe longer than wide, sub-trapezoid ( Fig. 14D ). Right paramere: shaft slender proximally and club-shaped apically ( Fig. 14C ).

Material examined

VIETNAM – Lao Cai Prov. • 36 ♂♂, 31 ♀♀; Sa Pa , Thanh Phu , near junction of Nam Cang and Muong Hoa streams; 26 Oct. 2013; Q.H. Ngo leg.; TAD1360 ; ZVNU • 3 ♂♂, 4 ♀♀; Sa Pa , Hoang Lien N.P. , Cat Cat ; 1 Jun. 2003; A.D. Tran leg.; TAD0336 ; ZRC . – Ha Giang Prov. • 3 ♂♂, 4 ♀♀; Bac Me , road 176, Minh Son commune , stream at Ban Van bridge; 7 May 2014; A.D. Tran et al. leg.; TAD1403 ; ZVNU • 1 ♂, 6 ♀♀; Yen Minh , Na Khe commune, stream near Nat’ road 4C; 8 May 2014; A.D. Tran et al. leg.; TAD1404 ; ZVNU • 2 ♂♂; Vi Xuyen , Xin Chai commune , Da stream by the road from Thanh Thuy to Lao Chai; 9 May 2014; A.D. Tran et al. leg.; TAD1405 ; ZVNU • 15 ♂♂, 8 ♀♀; Vi Xuyen , Nat’ road 2, Phuong Tien commune, Suu stream, near bridge; 9 May 2014; A.D. Tran et al. leg.; TAD1406 ; ZVNU • 7 ♂♂, 11 ♀♀; Vi Xuyen , Nat’ road 2, Phuong Tien commune, Suu stream, near bridge; 9 May 2014; A.D. Tran et al. leg.; TAD1407 ; ZVNU • 1 ♀; Vi Xuyen , National road 4C, Thuan Hoa commune, Nam Dieng stream, ca 12.5 km to Ha Giang city; 9 May 2014; A.D. Tran et al. leg.; TAD1409 ; ZVNU • 1 ♂, Xin Man , road 178, tributary of Nam Yen River, near bridge ca 2 km from Coc Pai town; 11 May 2014; A.D. Tran et al. leg.; TAD1412 ; ZVNU . – Cao Bang Prov. • 5 ♂♂, 20 ♀♀; Trung Khanh , Duc Hong commune, stream; 19 Dec. 2013; A.D. Tran et al. leg.; TAD1376 ; ZVNU • 1 ♂, 4 ♀♀; Bao Lac , Dinh Phung commune, near Tung Suu, stream by the Nat’ road 34; 20 Dec. 2013; A.D. Tran et al. leg.; TAD1378 ; ZVNU • 20 ♂♂, 29 ♀♀; Bao Lac , Hung Dao commune, Nhi Ao River, near Nam Xui bridge; 20 Dec. 2013; A.D. Tran et al. leg.; TAD1380 ; ZVNU • 3 ♂♂, 12 ♀♀; Bao Lac , Bao Toan commune, Na Roa Village, Khuoi Rong stream, tributary of Gam River ; 20 Dec. 2013; A.D. Tran et al. leg.; TAD1381 ; ZVNU . – Phu Tho Prov. • 1 ♂, 2 ♀♀; Xuan Son N.P. , Ban Coi , Coi stream, site 3, by the road to Tan Son; 7 Jun. 2013; A.D. Tran et al. leg.; TAD1339 ; ZVNU • 2 ♂♂, 1 ♀; Xuan Son N.P. , Ha Bang stream, near its confluence with Xoan stream; 21°5.318′ N, 104°58.87′ E; 22 May 2015; T.S. Nguyen leg.; TS1506 ; ZVNU • 1 ♂, 2 ♀♀; Xuan Son N.P. , Xoan stream , near Lang Village; 21°5.453′ N, 104°56.122′ E; 21 May 2015; T.S. Nguyen leg.; TS1501 ; ZVNU • 1 ♂; Xuan Son N.P. , Xoan stream, Xoan village area; 21°05.270′ N, 104°57.591′ E; 7 May 2016; T.S. Nguyen leg.; TS1609 ; ZVNU • 1 ♂; Xuan Son N.P. , Chieng stream, near ranger station; 21°06.072′ N, 104°59.433′ E; 27 Aug. 2014; T.S. Nguyen leg.; TS1408 ; ZVNU • 1 ♂, 4 ♀♀; Xuan Son N.P. , Chieng stream, near ranger station; 21°06.072′ N, 104°59.433′ E; 22 May 2015; T.S. Nguyen leg.; TS1508 ; ZVNU • 1 ♂, 5 ♀♀; Xuan Son N.P. , Chieng stream, near ranger station; 21°06.072′ N, 104°59.433′ E; 25 Aug. 2015; T.S. Nguyen leg.; TS8508 ; ZVNU • 2 ♂♂, 3 ♀♀; Xuan Son N.P. , Chieng stream, near ranger station; 21°06.072′ N, 104°59.433′ E; 6 May 2016; T.S. Nguyen leg.; TS1608 ; ZVNU • 2 ♂♂, 3 ♀♀; Xuan Son N.P. , Coi stream, site 1, by the road to Tan Son; 21°09.204′ N, 104°56.927′ E; 8 May 2016; T.S. Nguyen leg.; TS1617 ; ZVNU . – Thanh Hoa Prov. • 5 ♂♂, 1 ♀; Pu Hu Nature Reserve , Muong Lat , Trung Ly , Co Luong, Cha Lan stream; 4 Apr. 2013; T.D. Pham leg. ; PH1301 ; ZVNU • 2 ♂♂; Pu Luong Nature Reserve, Ba Thuoc, Co Lung , Ban Khuyn , Khuyn stream; 18 Mar. 2013; T.D. Pham leg.; PL1303 ; ZVNU. – Nghe An Prov . • 24 ♂♂, 29 ♀♀; Ky Son , Nat’ road 7, Ta Ca commune, Loi stream; 16 Apr. 2013; A.D. Tran et al. leg.; TAD1301 ; ZVNU • 9 ♂♂, 5 ♀♀; Ky Son , Nat’ road 7 at km 191+572, stream at Ban Na bridge; 16 Apr. 2013; A.D. Tran et al. leg.; TAD1304 ; ZVNU • 43 ♂♂, 34 ♀♀; Ky Son , Nat’ road 7 at km 182+950, stream at Khe Nan bridge; 16 Apr. 2013; A.D. Tran et al. leg.; TAD1305 ; ZVNU • 1 ♂, 1 ♀; Con Cuong , Lien Huong Village , Khe Thoi stream; 21 Dec. 2012; Q.H. Ngo leg.; NQH1209 ; ZVNU • 2 ♂♂, 3 ♀♀; Con Cuong , Tung Huong Village, Khe Thoi stream; 21 Dec. 2012; Q.H. Ngo leg.; NQH1210 ; ZVNU. – Ha Tinh Prov . • 9 ♂♂, 4 ♀♀; Vu Quang N.P. , Song Con River ; 23 Apr. 2003; A.D. Tran leg.; TAD0302 ; ZRC .

Distribution

China, Thailand ( Nieser et al. 2005; Chen et al. 2006). First records for Vietnam.

Remarks

Nieser et al. (2005) already noted the similarity (right paramere) and differences (body length, dorsal colour pattern, and left paramere) between M. ornitheia and M. sanctaecatherinae Hutchinson, 1940 ,

which is only known from India and Sri Lanka. Nieser et al. (2005) also made a comparison between the parameres of M. ornitheia , M. pocsi and related species from China and India. See also Remarks under M. clavata sp. nov. for additional differences between M. ornitheia and other similar species occurring in Vietnam.

Figures

Fig. 13. Habitus photos of species of Micronecta Kirkaldy, 1897, ♂♂. A. M. ornitheia Nieser, Chen & Yang, 2005 (ZVNU). B. M. tuwanoni Nieser, Chen, Leksawasdi, Thanyakam & Duangsupa, 2004 (ZVNU). C–D. M. clavata sp. nov., two colour forms (ZVNU), C = holotype. E. M. sinuata sp. nov., holotype (ZVNU). F. M. undulata sp. nov., holotype (ZVNU). G–H. M. nieseri sp. nov., two colour forms (ZVNU), G = holotype. I–J. M. pingae sp. nov., two colour forms (ZVNU), I = holotype. K. M. haliploides Horváth, 1904 (ZVNU). All to the same scale.

Fig. 14. Morphological features of species of Micronecta Kirkaldy, 1897, ♂♂. A–D. M. ornitheia Nieser, Chen & Yang, 2005 (ZVNU). E–G. M. tuwanoni Nieser, Chen, Leksawasdi, Thanyakam & Duangsupa, 2004 (ZVNU). A = median lobe of sternite VII; B, E = free lobe; C, F = right paramere; D, G = left paramere.