Eophileurus felschei Prell, 1913

Yang, Qiao-Zhi & Pathomwattananurak, Wuttipon, 2022, Four new species of the genus Eophileurus Arrow, 1908 (Coleoptera: Scarabaeidae Dynastinae) from Thailand and Vietnam, with notes on some Indochinese species, Zootaxa 5165 (4), pp. 451-485 : 460

Eophileurus felschei Prell, 1913

( Figs. 1c , 38–53 )

Eophileurus felschei Prell, 1913: 111 (type locality: “ Delhi Genji, Coromandel”), plates 1–2, fig. 4 (parameres); Arrow 1937: 84; Endrődi 1977: 101 (Coromandel; Delhi; Genji; Madras; Taniore; Bhadravati), fig. 4 (parameres); Endrődi 1985: 664, fig. 2005 (parameres); Krajčik 2005: 64; Yamaya & Muramoto 2008: 26; Krajčik 2012: 101; Jákl & Zídek 2015: 19.

Eophileurus grossepunctatus Dupuis, 2014: 13 , (type locality: “ Inde Anglaise, Shimoga”), plate 13, fig. 7 (parameres); fig. 1 (male habitus), fig. 3 (parameres); Jákl & Zídek 2015: 19; new synonym.

Type material examined. Lectotype of Eophileurus felschei Prell, 1913 (♀, MFNB, Figs. 38–41 ), labeled: “ GENJI 25 août – 15 sept 1901 // COROMANDEL M. MAINDRON // Eophileurus felschei Prell ♀ - Type // Lectotypus Eophileurus felschei Prell SEndrődi”. Paralectotype of E. felschei Prell, 1913 (♂, MTD, Figs. 42–48 ), labeled: “Sum. Deli // Typus // Coll. C. Felsche Kauf 20, 1918 // Staatl. Museum für Tierkunde Dresden”, examined through photographs provided by Olaf Jäger. Holotype of E. grossepunctatus Dupuis, 2014 (♂, MNHN, Figs. 49–53 ), labeled: “ INDE ANGLAISE Shimoga // Eophileurus sp. R.-P. Dechambre // Eophileurus grossepunctatus n.sp. Holotype F. Dupuis 2014 // HOLOTYPE // MNHN EC4413”, examined through website photographs provided by Antoine Mantilleri.

Additional material examined (1♂). India: 1♂ ( CQZY), Dwarakapuram Village, Naidupet Mandal, Nellore Dist. , Andhra Pradesh, 6.X.2010, Local Collector leg.

Distribution. India.

Remarks. Eophileurus felschei Prell, 1913 was described based on one pair of specimens from “Genji, India ”. The lectotype ( Figs. 38–41 ) was designated by Endrődi (1977), which is the female specimen housed in MFNB. The paralectotype ( Figs. 42–48 ) of this species is the male specimen housed in MTD. In recent years, Dupuis (2014) described E. grossepunctatus Dupuis, 2014 from “Shimoga, India ” (Holotype: Figs. 49–53 ) without providing any comparison to E. felschei . After the examination of the type material of both taxa, it is clear that no major differences are present in both the appearance and the parameres other than slight differences on the lateral processes of the parameres of the two male types (the lateral processes are slightly more enlarged and expanded at their apices in the type of E. felschei and less so in E. grossepunctatus . This mild difference can be seen in Fig. 46 versus Fig. 52 for the front view, and Fig. 47 versus Fig. 51 for the lateral view). Following the conclusion of the discussion section at the end of this paper, it is observed that the lateral processes bare the largest individual and geographical variations, and with differences this mild, the differences are too insignificant to separate them from a single species. Hence, E. grossepunctatus is conspecific with E. felschei and thus synonymized here.

Figures

FIGURE 1. Elytra of Eophileurus Arrow, 1908 species. a, E. quadrigeminatus Arrow, 1914; b, E. quadratifovealis Yang & Pathomwattananurak, new species; c, E. felschei Prell, 1913. Primary costae marked in yellow and labeled in capital letters, interstices labeled in numbers without additional coloring.

FIGURES 38–48. Type specimens of Eophileurus felschei Prell, 1913. 38–31, lectotype, female, 38, habitus, dorsal; 39, habitus, lateral; 40, habitus, ventral; 41, labels; 42–48, lectoparatype, male (images ©MTD/Olaf Jäger), 42, habitus, dorsal; 43, habitus, lateral; 44, habitus, ventral, 45–46, parameres, apical; 47, parameres, lateral; 48, labels.

FIGURES 49–53. Holotype of Eophileurus grossepunctatus Dupuis, 2014 (images ©MNHN/A. Mantilleri). 49, habitus, dorsal; 50, habitus, lateral; 51, parameres, apical; 52, parameres, lateral; 53, labels.