Macroscytus badius Walker 1867
Creators: name: Zhu, Geng-Ping
name: Liu, Guo-Qing
name: Lis, Jerzy A.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cydnidae
Macroscytus
Macroscytus badius

description: Macroscytus badius (Walker, 1867)
(Fig. 2)
Aethus badius Walker, 1867: 159.
Macroscytus badius: Distant 1899: 222; Lis 2000: 392. Macroscytus expansus Signoret, 1883: 479 (syn. by Lis 1994: 236). Macroscytus subaeneus: Hsiao et al. 1977: 46 [part].
Diagnostic characters: Body length: 5.70–7.83 mm, body width: 3.15–4.44 mm. General colour from pale brown to black-brown, corium somewhat paler. Head dorsally impunctate, except for several almost indistinct tiny punctures on paraclypei; clypeus without subapical setigerous punctures (sporadically with a pair of setae – Fig. 2 a); each paraclypeus with a row of 4–8 submarginal hair-like setae; 2nd antennal segment about 1.2 times longer than the 3rd; ocular index 2.10–2.80; interocellar index 9.0–15.0. Pronotal transverse discal impression behind calli absent or shallow; lateral margins with 9–13 submarginal setigerous punctures (Fig. 2 a). Propleural depression and its posterior convexity densely punctate, propleural anterior convexity sparsely punctate apically. Mesocorial disc and exocorium almost evenly punctate; costa separated from exocorium along its entire length; costal margin with 4–7 setigerous punctures (Fig. 2 a). Male hind femora with large subapical tooth on dorsal margin (Fig. 2 b); male hind tibiae carinate, without denticles (Fig. 2 b). Abdominal sterna impunctate or with small punctures posterior to spiracles. Male pygophore as in Fig. 2 d (dorsal view); paramere as in Fig. 2 c; aedeagus as in Fig. 2 f, apical part of 2nd conjunctival appendages more or less curled laterally (Fig. 2 g); proctiger as in Fig. 2 e.
Material examined (clypeus without subapical hair-like setae): CHINA: Hainan Province: Mt. Diaoluo, Lingshui county (18°66'N, 109°93'E), alt. 75m, 1 males, 1 female, 28.v.2007, light-trapped, Peng-zhi Dong leg., 1 male, 28.v.2007, light-trapped, Xu Zhang leg., 2 males, 3 females, 19.iv.2008, light-trapped, Geng-ping Zhu leg.; Datian Cervus eldi National Nature Reserve (19°11'N, 108°80'E), alt. 100m, 52 males, 45 females, 28.iv.2009, light-trapped, Geng-ping Zhu, Yi-ran Mu leg., 7 males, 6 females, 29.iv.2009, light-trapped, Yiran Mu leg., 2 females, 26.iv.2009, light-trapped, Li Xi leg., 2 females, 27.iv.2009, light-trapped, Yi-ran Mu leg.; Maoyang Town (18°94'N, 109°52'E), 1 male, 18.iv.2009, light-trapped, Geng-ping Zhu leg., 1 male, 18.iv.2009, light-trapped, Yi-ran Mu leg.; Tongguling National Nature Reserve (19°68'N, 111°02'E), 9 males, 16 females, 18.vii.2008, light-trapped, Zhong-hua Fan, Xu Zhang leg.; (clypeus with a pair of subapical hairlike setae): CHINA: Hainan Province: Mt. Diaoluo, Lingshui county (18°66'N, 109°93'E), alt. 70m, 1 male, 22.iv.2008, light-trapped, Geng-ping Zhu and Bo Cai leg., 1 female, 19.iv.2008, light-trapped, Geng-ping Zhu leg.; Datian Cervus eldi National Nature Reserve (19°11'N, 108°80'E), alt. 100m, 1 male, 1 female, 28.iv.2009, light-trapped, Geng-ping Zhu leg., 2 males, 3 females, 28.iv.2009, light-trapped, Li Xi leg., 3 males, 4 females, 28.iv.2009, light-trapped, Geng-ping Zhu,Yi-ran Mu leg., 3 males, 1 female, 29.iv.2009, light-trapped,Yi-ran Mu leg.; Maoyang Town (18°94'N, 109°52'E), 1 female, 18.iv.2009, light-trapped, Yi-ran Mu leg.
Distribution: China (Hainan), Burma, India, Maldive Islands, Nepal, Sri Lanka.
Notes: Wu (1935) listed this species from North China in his catalogue of the Chinese insects, but then its presence there was regarded as doubtful (Lis 1994, 2000). Our present study confirms its occurrence in the Hainan Province (South China); however, its presence in northern regions of the country still needs confirmation. Several specimens studied by us had a cephalic chaetotaxy different of its typical specimens, i.e., possessed a pair of subapical setigerous punctures on the clypeus – Fig. 2 a (all hitherto known specimens of this species bear no hair-like setae on the clypeus).
description: Published as part of Zhu, Geng-Ping, Liu, Guo-Qing & Lis, Jerzy A., 2010, A study on the genus Macroscytus Fieber, 1860 from China (Hemiptera: Heteroptera: Cydnidae), pp. 1-15 in Zootaxa 2400 on page 4, DOI: 10.5281/zenodo.194079