Macrocheilus spectandus Péringuey, 1904

Serrano, Artur R. M., 2023, Afrotropical ground beetles of Macrocheilus Hope, 1838 (Coleoptera, Carabidae) description of four new species and faunistic notes, Zootaxa 5256 (1), pp. 1-35 : 25

Macrocheilus spectandus Péringuey, 1904

Figs. 11b, c , 12b , 13c

Studied material. 1 male: “ Zaire: Lubumbashi\ 1.III.1975 \ W. Beun (don A. Allaer)” ( MRAC); 1 male: “ Tanzania, 9/ 13.XII.1997 \ near Songea, Ruvuma Prov. \ leg. Werner & Lizler” \\ “Collection\ Th. Assmann\ Bleckede, CAB” (yellow label)\\ “ Macrocheilus \ spectangus Périn.” [h] \ det. Th. Assmann, 2006” [t]\\ “ Macrocheilus \ spectandus \ Péringuey, 1904 ” [h]\ A. Serrano det. 2021” [t] [h].

Remarks. The species was originally described from Southern Rhodesia (Umtali, nowadays Zimbabwe) ( Fig. 11b ) and is distributed throughout Central and Oriental Africa ( Basilewsky 1962; Häckel & Farkač 2013). The MRAC adult male specimen examined was determined by P. Basilewsky. In 1992, we also observed adult specimens from Zimbabwe and Republic of Rwanda deposited in MRAC. Macrocheilus spectandus is recorded for Rwanda and Tanzania for the first time.

Male genitalia ( Fig. 13c ). A brief description and drawings of median lobe in lateral and dorsal views and left paramere were provided by Serrano (2000, Figs. 9 , 10 ). Contrarily to the other Macrocheilus species the median lobe apex is slightly upward, presenting also a pair of large laterally scaled sclerotized stripes, bending laterally downwards and backwards.

Distribution. Burundi, Democratic Republic of the Congo, Republic of Rwanda, Tanzania, Zambia, Zimbabwe.

Figures

FIGURE 9. Habitus of Macrocheilus (dorsal view). a, M. longicollis (holotype); b, M. longicollis, MOZ (PSC); c, M. longicollis, ZAM (TAC); d, M. persimilis (holotype, plus labels); e, M. persimilis, ZAM (TAC); f, M. proximus (holotype); g, M. proximus, ETI (TAC); h, M. quadrinotatus (holotype, plus labels); i, M. quadrinotatus, ANG (ASC).

FIGURE 10. Labrum of Macrocheilus (dorsal view). a, M. longicollis, MOZ (PSC); b, M. persimilis, ZAM (TAC); c, M. proximus, ETI (TAC); d, M. quadrinotatus, ANG (ASC).

FIGURE 11. Habitus of Macrocheilus (dorsal view). a, M. scapularis (MRAC, plus labels); b, M. spectandus (holotype); c, M. spectandus, TAN (TAC); d, M. taedatus (paratype); e, M. taedatus, TAN (TAC); f, M. viduatus katanganus (holotype, plus labels); g, M. viduatus katanganus, ZAM (PSC).

FIGURE 12. Labrum of Macrocheilus (dorsal view). a, M. scapularis (MRAC); b, M. spectandus, TAN (TAC); c, M. taedatus, TAN (TAC); d, M. viduatus katanganus, ZAM (PSC).

FIGURE 13. Aedeagus of Macrocheilus: median lobe and right paramere (left, lateral view) and median lobe (right, dorsal view). a, M. persimilis, ZAM (TAC); b, M. scapularis (MRAC); c, M. spectandus, ZAM (TAC); d, M. viduatus katanganus, ZAM (PSC).