Didrepanephorus mizunumai Nagai & Hirasawa, 1991

Zhao, Ming-Zhi & Liu, Wei-Xin, 2022, A contribution to the genus Didrepanephorus Wood-Mason, 1878 (Coleoptera, Scarabaeidae, Rutelinae), ZooKeys 1092, pp. 31-45 : 31

Didrepanephorus mizunumai Nagai & Hirasawa, 1991

Figs 16-18

Fruhstorferia birmanica Arrow, 1907: Arrow 1907: 354 [partim, female]; Arrow 1917: 49, fig. 16 [partim, female].

Didrepanephorus mizunumai Nagai & Hirasawa, 1991: 10, figs 2-5, 20, 32-34, 39-40 [original description]; Nagai 2005: 271, figs 4-6, 17; Muramoto 2009: 59, figs 4-6.

Fruhstorferia mizunumai (Nagai & Hirasawa, 1991): Jameson 1997: 170, figs 21-22 [new combination]; Nagai 2004: 150, figs 13-16, 27 [recorded from Houa Phan Prov., Laos]; Krajčík 2007: 71 [catalogued]; Krajčík 2012: 93 [catalogued, subgeneric placement unnoted].

Fruhstorferia yunnana Ohaus, 1911: Muramoto 1993: 7, figs 6, 10 [misidentification, recorded from Sapa, N. Vietnam].

Type locality.

North Thailand, Chiang Mai Province, Fang.

Material examined

(5 specimens). 1♀ (BMNH), "Birmah Ruby Mes // Doherty // 64610 // Fry Coll. 1905. 100. // Fruhstorferia birmanica , Arrow type ♀ A. a M., 1907. // Figured for " Fauna of India." // Type // NHMUK014379788", it will be provided with an additional red label: PARALECTOTYPE Fruhstorferia birmanica Arrow, 1907 des. Zhao Ming-Zhi 2021 ; 1♂, 1♀ (ZMPC), Thailand, Chiang Mai, Fang , 26.VI.2011 ; 1♂, 1♀ (ZMPC), same as preceding but 2015.V.

Remarks.

The female of D. mizunumai is easily characterized by the three strongly elevated costae between humeral and apical umbone, as well as a bulge on lateral portions of elytron. The paralectotype of F. birmanica (Figs 16-18 ) well fits topotypical female of D. mizunumai from Fang. Therefore, the female paralectotype represents a new distributional record for Myanmar. Two similar Didrepanephorus species, i.e., Laotian D. lao Nagai, 2005 and Vietnamese D. zen Muramoto, 2009 have minor morphological differences, but both are more restricted in their known distribution ranges.

Distribution.

Laos (Houaphanh); Myanmar (Mandalay) (new record); Thailand (Chiang Mai); Vietnam (Lao Cai).

Figures

Figures 11 - 18. Type material of Didrepanephorus species. 11 - 15 male of D. birmanicus (Arrow, 1907) (Lectotype of Fruhstorferia birmanica Arrow, 1907) 16 - 18 female of D. mizunumai Nagai & Hirasawa, 1991 (paralectotype of F. birmanica), habitus in dorsal view 11, 16 habitus in dorsal view 12, 17 habitus in lateral view 13 aedeagus showing parameres in dorsal view 14 aedeagus in dorsal view 15, 18 attached labels. All photos © Keita Matsumoto (NHMUK).