A study on the genus Macroscytus Fieber, 1860 from China (Hemiptera: Heteroptera: Cydnidae) Author Zhu, Geng-Ping Author Liu, Guo-Qing Author Lis, Jerzy A. text Zootaxa 2010 2400 1 15 journal article 10.5281/zenodo.194079 8296a6ac-0379-457b-9a32-5bc2a70c3fef 1175-5326 194079 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).