Micronecta (Basileonecta) sedula Horváth, 1905

Figs 1B, 2E–G

Micronecta sedula Horváth, 1905: 423 (type locality: Akashi, Japan).

Micronecta quadrivittata Matsumura, 1905: 62 (type locality: Hokkaido and Honshu, Japan).

Micronecta quadriseta Lundblad, 1933a: 460–461, pl. XIII fig. 7, text fig. 6 (type locality: Soochow (Suzhou), China).

Micronecta sedula – Wróblewski 1960: 309–313, pl. XVI (redescription); 1967: 237 (descriptive notes); 1968: 776 (checklist, synonymy list). — Jansson 1995: 28–29 (catalogue).

Micronecta quadrivittata – Matsumura 1915: 114 (synonymised with Micronecta sedula).

Micronecta quadriseta – Wróblewski 1960: 309–313 (synonymised with Micronecta sedula).

Diagnosis

Body length 2.7–3.4. Pronotum distinctly longer than median head length, without dark transverse stripe. Hemelytron (Fig. 1B) pale yellowish, corium with four brown stripes.

Males: fore femur with four spines in proximal third ventrally, four spines on middle third and a pair of spines on distal third dorsally; fore tibia with a pair of spines on distal third; palar claw slender, straight. Median lobe of sternite VII with two long setae. Free lobe sub-rectangular, posterior margin concave, lateral angle produced, with about 10 long setae (Fig. 2E). Left paramere: shaft stout, apical part slightly swollen, apex obtuse, mesial side with minute spine-like scales; basal lobe tongue-shaped (Fig. 2G). Right paramere: shaft slender slightly curved pre-apically, apex narrowly rounded (Fig. 2F).

Material examined

VIETNAM – Quang Ninh Prov. • 1 ♂, 1 ♀; Dong Rui; 12 Sep. 2019; T.A.N. Nguyen leg.; #1902; ZVNU . – Ninh Binh Prov. • 1 ♂, 1 ♀; Gia Vien, Van Long Wetland Nature Reserve; 25 Aug. 2002; Q.K. Hoang and V.K. Dinh leg.; VNNB0201; ZRC. – Thua Thien Hue Prov . • 5 ♂♂, 6 ♀♀; Quang Dien District, Quang Loi Commune, Con Toc; 7 May 2012; A.D. Tran leg.; TAD1212; ZVNU .

Distribution

Vietnam: Hoa Binh (Chine), Ninh Binh (Cuc Phuong), and Quang Tri (Wróblewski 1962, 1967); first records from Quang Ninh, Ninh Binh (Van Long), Thua Thien Hue. Specimens from Thua Thien Hue were collected in the brackish water of a coastal lagoon. Other countries: Russia (Khanka Lake), Korea, Japan, eastern China (Wróblewski 1960, 1968; Nieser et al. 2005).

Remarks

See Remarks under M. siva .