Miridiba longula ( Moser, 1912 )

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 : 58

Miridiba longula ( Moser, 1912)

Holotrichia longula Moser, 1912: 442 (type loc.: Cochinchina, Vietnam).

Miridiba longula – Keith 2006: 45 (combination). — Coca-Abia: 681, 683, fig. 18 (type material; in key).

Diagnosis

External morphology of adult ( Coca-Abia 2008). (Type specimen without head and pronotum). Elytra shiny, glabrous and disperse punctures, weakly punctate at apices. Pygidium with pubescence only on apical margin. Meso- and metatibiae with complete transverse carina, inner margin of dorsal surface without spines. Male genitalia: parameres ( Coca-Abia 2008: fig. 18) with dorsal branch wide at all its length with sutural scar at middle. Ventral branches symmetrical, thin, without wavy elevations at outer margin, widened apices with rough appearance. Female unknown.

Remarks

This species was transferred to Miridiba by Keith (2006) and the holotype was indicated by Coca-Abia (2008). However, Moser (1912) did not indicate how many specimens he studied, so the indication that the specimen was a holotype by Coca-Abia (2008) was not correct (Art. 73.1 ICZN) (this specimen indicated as holotype was lost on the way back to MFNB). Miridiba longula shows features of the external morphology and genitalia that characterize morphotype IV “ Bidentata ”. Hence, this species is included in this genital morphotype.

Distribution

Vietnam.