Miridiba gravida ( Sharp, 1881 )

Gao, Chuan-bu & Coca-Abia, María Milagro, 2021, Revision of the genus Miridiba Reitter, 1902 (Coleoptera, Scarabaeidae, Melolonthinae): genital morphotypes and new taxonomic data, European Journal of Taxonomy 749, pp. 1-94 : 54-55

Miridiba gravida ( Sharp, 1881)

Lachnosterna gravida Sharp, 1881: 227 (type loc.: Soerian, Sumatra).

Holotrichia moffartsi Brenske, 1900: 148 (type loc.: Sumatra).

Holotrichia gravida – Brenske 1894b: 277 (combination). — Dalla Torre 1912: 203 (catalogue). — Frey 1970: 248 (in key). — Itoh 2002: 17, figs 1–12 (redescription).

Holotrichia moffartsi – Itoh 2002: 17 (synonym). — Frey 1970: 248 (in key).

Miridiba gravida – Coca-Abia 2008: 679, 683 (combination; in key). — Matsumoto 2016: 3, figs 9–11 (type material).

Diagnosis

See Sharp (1881) and Itoh (2002).

Material examined

Lectotype of H. moffartsi (here designated) INDONESIA • ♂; “ Sumatra ”; “Lectotype Miridiba moffartsi ( Sharp, 1881) CH. Bu Gao det. 2017”; MFNB .

Remarks

Itoh (2002) redescribed Holotrichia gravida and Coca-Abia (2008) transferred it to Miridiba . In the original description, Sharp (1881) indicated that this species is closely allied to M. leucophthalma . We have not studied type specimens of H. gravida , but, after reviewing the redescription by Itoh (2002), we agree with Sharp (1881) and include this species in morphotype III “ Leucophthalma ”. On the other hand, Brenske (1900) also considered H. moffartsi belonging to Leucophthalma group. The first author of this paper has studied and compared a syntype of H. moffartsi (MFNB) with the genitalia illustrations of M. gravida ( Itoh 2002) , verifying the synonymy proposed by this author ( Itoh 2002). Also, the syntype of H. moffartsi (MFNB) is designated as lectotype herein.

Distribution

Indonesia (Sumatra).

Species included in Morphotype IV “Bidentata”

The group is composed of seven species, which are characterized by antenna 10-segmented, pronotal surface densely punctate (distance between punctures equal or smaller than diameter of a puncture), and male and female genitalia as specified above.