Macroscytus gibbulus ( Ellenrieder, 1862 )

Zhu, Geng-Ping, Liu, Guo-Qing & Lis, Jerzy A., 2010, A study on the genus Macroscytus Fieber, 1860 from China (Hemiptera: Heteroptera: Cydnidae), Zootaxa 2400, pp. 1-15 : 8-9

Macroscytus gibbulus ( Ellenrieder, 1862)

(Fig. 5)

Hahnia gibbula Ellenrieder, 1862: 140 .

Macroscytus gibbulus: Lis 1994: 221 .

Macroscytus sumatranus J.A. Lis, 1994: 228 (syn. by Lis 2000: 416).

Diagnostic characters: Body length: 8.00– 10.78 mm, body width: 4.22–5.49 mm. General body colour from dark castaneous to almost black. Head dorsally impunctate, sometimes only slightly wrinkled in lateral parts of paraclypei; clypeus subapically without a pair of hair-like setae; each paraclypeus submarginally with a single preocular setigerous puncture (Fig. 5a); 3rd antennal segment 1.34–1.42 times longer than 2nd; ocular index 1.85–2.45; interocellar index 6.0–11.0. Pronotal transverse impression behind calli deep and well visible, bearing numerous punctures (Fig. 5a); lateral margins with 4–5 submarginal setigerous punctures (Fig. 5a). Propleural depression and basal part of posterior lobe with numerous punctures. Corium almost evenly punctate; costa narrow, separated from exocorium along almost its entire length; costal margin with 2 setigerous punctures (Fig. 5a). Male hind tibiae with small subbasal tubercles, hind femora with subapical teeth (Fig. 5b); female hind femora with very small, sometimes indistinct subapical tooth. Abdominal sterna with triangular patches of dense tiny punctures posterior to spiracles, sterna III and IV with very few tiny punctures also anterior to spiracle. Male genital capsule as in Fig. 5d (dorsal view), its opening margins completely sclerotized; paramere as in Fig. 5c; aedeagus as in Fig. 5e, its ductus seminis and the 2nd conjunctival appendages very long.

Macroscytus gibbulus from China. (a) body outline; (b) male hind leg, dorsal view; (c) left paramere; (d)

male genital capsule, dorsal view; (e) aedeagus. Scale bar = 0.25mm.

Material examined: CHINA: Hainan Province: Mt. Diaoluo, Lingshui county (18°66'N, 109°93'E), alt. 70m, 1 male, 9 females, 21.v.2007, light-trapped, Peng-zhi Dong leg., 4 males, 8 females, 27–29.v.2007, lighttrapped, Xin Yu leg., 2 males, 8 females, 28.v.2007, light-trapped, Xiao-ming Li leg., 4 males, 6 females, 27.v.2007, light-trapped, Xin Yu leg., 2 males, 2 females, 18.iv.2008, light-trapped, 1 males, 4 females, 19.iv.2008, light-trapped, Bo Cai leg., 1 male, 1 female, 18.iv.2008, light-trapped, 2 males, 1 female, 19.iv.2008, light-trapped, Geng-ping Zhu leg., 1 male, 10.viii.2008, light-trapped, Zhong-hua Fan leg.; Bawangling National Nature Reserves, Changjiang county (41°15'N, 117°12'E), 1 male, 3.iv.2008, lighttrapped, Geng-ping Zhu and Bo Cai leg., 1 male, 3 females, 24.iv.2009, light-trapped, Ke-long Jiao, Yi-ran Mu leg.; Wuzhishan county (18°89'N, 109°67'E), alt. 740m, 1 male, 13.iv.2009, light-trapped, Geng-ping Zhu leg.; Maoyang Town (18°94'N, 109°52'E), 2 males, 2 females, 18.iv.2009, light-trapped, Yi-ran Mu leg., 2 males, 2 females, 18.iv.2009, light-trapped, Geng-ping Zhu leg., 1 male, 1 female, 18.iv.2009, Ke-long Jiao, Yi-ran Mu leg.; Datian Cervus eldi National Nature Reserve (19°11'N, 108°80'E), alt. 100m, 1 male, 1 female, 25.iv.2009, light-trapped, Geng-ping Zhu, Yi-ran Mu leg., 3 males, 5 females, 26.iv.2009, light-trapped, Li Xi leg., 7 males, 10 females, 27.iv.2009, light-trapped, Geng-ping Zhu leg., 6 males, 5 females, 27.iv.2009, lighttrapped, Yi-ran Mu leg., 3 males, 1 female, 28.iv.2009, light-trapped, Geng-ping Zhu, Yi-ran Mu leg., 1 male, 28.iv.2009, light-trapped, Geng-ping Zhu leg., 1 male, 1 female, 29.iv.2009, light-trapped, Yi-ran Mu leg.; Yunnan Province: Jinghong county (22°01'N, 100°48'E), 1 male, vii.1984; Simao county (22°48'N, 100°58'E), alt. 620m, 1 female, 16.v.2006, Qiang Xie leg.; Mt. Wuliang, Jingdong county (24°26'N, 100°50'E), alt. 1500– 2500m, 1 female, 30.v.2001, Qiang Xie leg.; Puer County (22°99'N, 100°99'E), alt. 600m, 1 female, 18.v.2001, Jun Li leg.

Distribution: China (Guangxi, Hainan, Yunnan), Burma, India, Indonesia, Laos, Malaysia, Singapore, Thailand, Vietnam.