Eoclivina burgeoni ( KULT, 1959 )

Balkenohl, Michael, 2023, The genus Eoclivina (KULT, 1959) from Africa with the description of two new species (Coleoptera, Carabidae, Clivinini), Belgian Journal of Entomology 138, pp. 1-17 : 13

Eoclivina burgeoni ( KULT, 1959)

( Figs 4 , 13 )

Clivina (Eoclivina) burgeoni KULT, 1959: 215 ; LORENZ 2005: 145; 2023: 5 ZB8F;

Eoclivina burgeoni ( KULT, 1959) , BALKENOHL, 2022: 108.

TYPE MATERIAL. Holotype: ♀, with white black printed and handwritten in black ink label and data: “MUSÉE DU CONGO Eala XI-1934 J. Ghesquière ” / white with handwritten black ink and data: “ Clivina dumolini Putz ?” / white with handwritten black ink and data: “ Clivina Burgeoni 47 Kult det. K. Kult ” / red, black framed, printed: “HOLOTYPUS” ( Fig. 4 ) ( MRACT) .

EXTENDED DIAGNOSIS. A medium sized piceous species with the following measurements: Body length 5.45 mm, width 1.6 mm, ration L/W of pronotum 0.95, ratio L/W of elytra 1.86. The elytron is unicolor. In nearly all characters, the species resembles exactly E. machadoi . It is different from E. machadoi mainly by the reticulation on the intervals of the elytron. In E. burgeoni , all intervals are completely covered with reticulation and the elytron appears opaque. In addition, the gonocoxite show a slight difference. In E. burgeoni , the apical tubercle is slightly more prolonged and shows apically an additional small seta.

The variation of the reticulation of the elytron is distinct in the nine specimens of E. machadoi . If the reticulation seen in E. burgeoni is the maximum end in the spectrum of this character or if it constitutes a stable character cannot be decided on the basis of one female specimen. A similar argumentation is true for the gonocoxite.

Therefore, taxonomic action is not performed at present because more material is needed for a solid decision. The specimen is also mentioned in BASILEWSKY (1955, p. 102).

REMARK.A similar wide pattern of the reticulation on the elytron up to a complete cover including its sexual dimorphism has been observed recently in Sulciclivina sulcigera ( PUTZEYS, 1867) from the Oriental region, where numerous specimens were available for study (BALKENOHL, in press).

DISTRIBUTION. The specimen was found in Eala, Democratic Republic of the Congo.

Figures

Figs 1-5. Eoclivina species, habitus, dorsal view. 1, E. dumolinii (Putzeys, 1846), ♂, specimen from Velingara, Guinea. 2, E. basilewskyi sp. nov., holotype. 3, E. machadoi (Basilewsky, 1955), holotype. 4, E. burgeoni (Kult, 1959), holotype. 5, E. schmidli sp. nov., holotype.

Figs 10-14. Eoclivina species, females, gonocoxite and epipleurite, ventro-lateral view. 10, E. dumolinii (Putzeys, 1846), specimen from Velingara, Guinea. 11, E. basilewskyi sp. nov., paratype. 12, E. machadoi (Basilewsky, 1955), paratype. 13, E. burgeoni (Kult, 1959), holotype. 14, E. schmidli sp. nov., paratype.