Plagiochilus dupeyi Bourgoin, 1928

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 : 59

* Plagiochilus dupeyi Bourgoin, 1928

( Figs. 13b, c, d )

Distribution: ANG, COM.

Distribution in Angola (Provinces): 1) LNO.

Historic records:

—Dundo (LNO) ( Gomes Alves 1959 sub Coenochilus emarginatus Westwood ).

Material examined: Dundo (7º 22´S, 20º 50´E, 1470 m alt., 51) ( LNO), -. X.1948, 1 ♂, 1 ♀, Nº 2148, Junta de Investigações Coloniais (Entomologia), Coenochilus emarginatus Westwood Gomes Alves det. 1956, IICT, MUH- NAC .

Remarks. The species was described from CON ( Bourgoin 1928). The species reported for Angola by Gomes Alves (1959) under Coenochilus emarginatus Westwood, 1873 name should belong to Plagiochilus dupeyi (S. Rojkoff, personal communication). However, some features of this species do not conform to the IICT specimens [e.g. the posterior angles of the pronotum are largely round, not “obtus mais à sommet vif” ( Bourgoin 1928)]. The dorsal view of the parameres of the Dundo male specimen ( Fig. 26c ) fit well the figure given by Schein (1954a, Fig. 43) for Coenochilus impressus ( Moser, 1911) , but not the lateral view (fig. 26d). Schein (1954a) postulated also that C. impressus could be synonym of Coenochilus emarginatus (“Es wäre möglich, dass impressus identisch ist mit dem mir in natura unbekannten emarginatus Westwood 1873 ”), considering this species an incertae sedis. The adult specimens of IICT fit well the figure 1 (dorsal habitus) given by Westwood (1873) in plate XII for Coenochilus emarginatus , but without the study of the type of Westwood, it is impossible to confirm this identification. It is with some caution that we ascribe these two specimens to Plagiochilus dupeyi . Biological and ecological data are not available for the species, but see the general comments on the genus Coenochilus . It is a new species record for Angola and the Lunda Norte Province.

Figures

FIGURE 13. Cetoniinae species of Angola. a, Plagiochilus crassipes (dorsal view), male, Cabuta, CUS, ASC; b, Plagiochilus dupeyi (dorsal view), male, Dundo, LNO, IICT; c and d, Plagiochilus dupeyi, parameres (frontal and lateral views, respectively), Dundo, LNO, IICT; e, Plagiochilus pilosus (dorsal view), female, Alto Hama–Bailundo, HUA, ASC; f, Cymophorus (Clydonophorus) squamosus squamosus (dorsal view), female, Cassoco, BIE, ASC; g, Chtonobius conspersus (dorsal view), MZUC; h, Lissogenius ertli (dorsal view), male, Kibundi, MAL, ASC; i, Campsiura (Macroma) angolensis angolensis (dorsal view), male, Calulo–Cabuta, CUS, ASC.

FIGURE 26. Cetoniinae species of Angola. a, Tmesorrhina laeta burgeoni (dorsal view), female, Mussende, CUS, ASC; b–d, Tmesorrhina tridens tridens, male (dorsal view), parameres (frontal view) and female (dorsal view), respectively, Carima, MAL, ASC; e, Tmesorrhina viridicyanea (dorsal view), female, Mumbué, BIE, ASC; f and g, Goliathus goliatus (dorsal views), and associated labels, male and female, respectively, Cabinda, JPCC; h and i, Hegemus peregrinus (dorsal views), and associated old identification labels, females, MZUC.