Micronecta (Indonectella) grisea (Fieber, 1844)

Figs 5A, 6A–D

Sigara grisea Fieber, 1844: 14, table 1, fig. 21 (type locality not specified).

Micronecta thyesta Distant, 1910: 349–350 (type locality: Madhupur, India).

Micronecta pilosella Matsumura, 1915: 115, 119 (type locality: Taiwan).

Micronecta grisea – Kirkaldy 1908: 209 (list). — Wróblewski 1968: 772–773, 775 (synonymy, checklist); 1972a: 23–25, 50, tables 1–2, figs 36, 40 (additional notes, key). — Fernando & Cheng 1974: 37. — Jansson 1995: 30–31 (catalogue). — Nieser & Chen 1999: 79–80, table 2, fig. 44 (key, notes, distribution). — Nieser 2000: 286, fig. 31 (key); 2002b: 265, 267, fig. 10 (key, notes). — Nieser et al. 2005: 190 (checklist).

Micronecta pilosella – Chen 1960: 117 (synonymised with M. thyesta).

Micronecta thyesta – Hutchinson 1940: 363–365, figs 64–75 (redescription, assigned to subgenus Indonectella). — Wróblewski 1962: 177 (notes); 1967: 240 (notes); 1968: 772 (synonymised with M. grisea). — Fernando 1964: 606, fig. 11, 22, 33 (diagnosis). — Leong 1966: 84, 88 (notes, key).

Diagnosis

Body length 3.0–3.1. Pronotum slightly longer than median head length; clearly narrower than head width. Hemelytron (Fig. 5A) translucent or greyish brown, usually with two broken longitudinal dark stripes; embolium with a large spot in the middle and two smaller spots on two sides.

Males: fore femur with a pair of spines on proximal third; fore tibia with a spine on middle third (Fig. 6A); palar claw, median lobe of sternite VII and free lobe (Fig. 6B) as in diagnosis for subgenus. Left paramere: shaft slender, evenly arched; distal part with small barbs; apex recurved, flattened, thus appearing flag-like; basal lobe short and broad (Fig. 6D). Right paramere: shaft distally curved, tapering from distal half towards narrowly rounded apex (Fig. 6C).

Material examined

VIETNAM – Ninh Thuan Prov. • 3 ♂♂; Nui Chua N.P ., Da Vach Lake; 27 Jun. 2004; N.V. Quang leg.; NC-01; ZRC .

Distribution

Vienam: Hanoi, Lao Cai, Ninh Binh (Cuc Phuong), Nghe An, Ha Tinh (Wróblewski 1962, 1967); first record for Ninh Thuan. Other countries: widespread from India, Sri Lanka to southern China, Taiwan, Peninsular Malaysia, and Indonesia (Sumatra, Java) (Leong 1966; Fernando & Cheng 1974; Nieser & Chen 1999; Nieser et al. 2005).

Remarks

This species can easily be recognised by the relatively large body (length ca 3.0 mm), the absence of a strigil, the shape of the the free lobe, and the shape of the apical part of the left paramere (Fig. 6B, D).