Gnathocera trivittata dorsodiscolor (Voet, 1779)

Serrano, Artur R. M., Capela, Rúben A., Nunes, Telmo & Santos, Carmen Van-Dú- Nem Neto, 2020, The rose chafers (Coleoptera: Scarabaeidae: Cetoniinae) of Angola: a descriptive checklist with new records and synonymic notes, Zootaxa 4776 (1), pp. 1-130 : 97

Gnathocera trivittata dorsodiscolor (Voet, 1779)

( Figs. 22i , 23a )

Distribution: ANG, BEN, CON, DOC, GAB.

Distribution in Angola (Provinces): 1) CNN; 2) CUS.

Historic records:

— Angola (without locality), Humbe, Merero (CNN) ( Paulino de Oliveira 1882 sub Gnathocera trivittata Swederus );

— Angola (without locality) ( Allard 1991).

Material examined: Angola, 2 ♂, Nº 1907 (blue labels), nºs 140 and 141 (white labels), Welwitsch leg., old collection, box nº VI-75 ; Angola, 1 ♂, Nº 1907 (blue label), old collection, box nº IX-78, MZUC; Munenga (10º 02´S, 14º 40´E, 400 m alt., 147) ( CUS), 30.III.1964, 1♂, A.J. Duarte leg., nº 4159, JPCC, MUHNAC .

Remarks. A subspecies with the same distribution as the precedent subspecies ( Allard 1991), which put the question if they are not only colour forms without taxonomic value. Allard (1991) considered both subspecies synonyms. As the species G. trivittata is very much variable it is necessary to define geographically more properly both forms, a scope out of this work. Biological or ecological data are not available for this subspecies. It is a new subspecies record for Kwanza Sul Province.

Figures

FIGURE 22. Cetoniinae species of Angola. a, Gnathocera cruda gracilis (dorsal view), male, MZUC; b, Gnathocera cruda leopoldi (dorsal view), male, MZUC; c and d, Gnathocera marginata (dorsal views), males, MZUC and Dundo, LNO, IICT, respectively; e, Gnathocera overlaeti (dorsal view), male, Dundo, LNO, IICT; f, Gnathocera trivialis (dorsal view), male, Muita, LNO, IICT; g and h, Gnathocera trivittata ardoini (dorsal views), male and female, respectively, Dundo, LNO, IICT; i, Gnathocera trivittata dorsodiscolor (dorsal view), male, MZUC.

FIGURE 23. Cetoniinae species of Angola. a, Gnathocera trivittata dorsodiscolor (dorsal view), male, Munenga, CUS, JPCC; b and c, Gnathocera villosa (dorsal views), females, MZUC; d and e, Lansbergia vanderkelleni (dorsal views), habitus and head and pronotum, respectively, MZUC; f and g, Lophorrhina quinquelineata (dorsal views), male and female, respectively, Mussende, CUS, ASC; h, Mecynorhina (Amaurodes) passerinii passerinii (dorsal view), female, Dundo, LNO, IICT; i, Mecynorhina (Mecynorhina) polyphemus confluens (dorsal view), female, MZUC.