Calomera marmorata (W. Horn, 1925)

(Figs 224–235)

Cicindela decemguttata marmorata W. Horn, 1925: 138 .

Abroscelis marmorata: Schilder 1953: 550.

Lophyridia marmorata: Rivalier 1963: 31.

Cicindela (Calomera) marmorata: Lorenz 1998a: 48; 1998b: 593; 2005a: 50; 2005b: 627.

Calomera marmorata: Wiesner 2020: 232.

Type locality. “ Bougainville et insulae Salomones” (see “Distribution below).

Type material. Lectotype (designated here for better stability of the taxon) ♂ in SDEI, labelled: “Salomo Ins. / N. Guinea ” [printed] // “Staudinger” [printed] // “Type / W. Horn ” [printed] // “ Syntypus ” [red, printed] // “ Coll. W. Horn / DEI Eberswalde” // “f. / marmorata / m.” [large, dark-brownish collection label, handwritten] // “ SDEI Coleoptera / # 301177” [printed] . Paralectotype. 1 ♀ in SDEI: “Bougainville / N….[handwritten, illegible]” // “Type / W. Horn ” [printed] // “ Syntypus ” [red, printed] // “ Coll. W. Horn / DEI Eberswalde” // “ SDEI Coleoptera / # 301178” [printed] .

Other material examined. 1 ♂, 4 ♀♀ in IRSNB: “Buin / Bougainville / New Guinea ” // “ Coll. J. Muller: / R.M.H.N.B. 16.364”. // “10-guttata F / marmorata WH / det Nidek 1964” . 1 ♂ in JWMC: “Buin / Bougainville / 1930” .

Differential diagnosis. Calomera marmorata is immediately distinguished from all species of the Calomera decemguttata species-complex by its elytra uniquely marked with two conspicuous, elongate blackish marks on the basal area of each elytron and large, blackened discal area (Figs 224–225, 229–230) and aedeagus (Figs 233–235) with pointed apex in its lateral view (Figs 233, 235). Whitish elytral maculation and setal vesture may resemble that in C. durvillei .

Distribution. Endemic to the Salomon Islands. Bougainville is the largest island in the Solomon Islands archipelago; the Autonomous Region of Bougainville is currently part of Papua New Guinea. Specimens (IRSNB) from Buin come from an area near the capital of the South Bougainville District. The natural vegetation of the Solomon Archipelago consists of lowland and tropical forests. Cassola (1987b) examined 59 specimens from the Salomon Islands, all from Bougainville.