Macrocheilus dorsalis (Klug, 1834)

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 : 15-16

Macrocheilus dorsalis (Klug, 1834)

Figs. 5e , 6b , 7a

Studied material. 1 female: “Letaba Camp\ K.N.P. survey\ 14–18.XI.1961, Vári & Rorke” ( MRAC); 1 male: “ Tanzania 31.III.1997 \ Usambara Mts.\ leg. Werner & Lizler” \\ “ Macrocheilus \ cf. dorsalis ” [h] \ “det. Th. Assmann, 2006” [t] (white label)\\ “Collection\ Th. Assmann\ Bleckede, CAB” (yellow label)\\ “ Macrocheilus \ dorsalis \ (Klug)” [h]\ “A.Serrano det. 2014” [t] [h]; 1 male: “ Zambia NC.\ 82 km SSW Solwezi\ 3.12.2004 \ Snižek, Tichẏ lgt.” \\ “Collection\ Th. Assmann\ Bleckede, CAB” (yellow label)\\ “ Macrocheilus \ dorsalis Klug ” [h] \ det. Th. Assmann, 2008” [t] (white label)\\ “ Macrocheilus \ dorsalis \ (Klug) [h]\ A.Serrano det. 2014[h] [t]”.

Remarks. The species was described from the southwestern region of Republic of South Africa (Cape Province) ( Hackel & Farkač 2013). During a visit to MRAC, in 1992, we had an opportunity to check a female specimen of this species which was collected in the Kruger National Park ( RSA, north-eastern provinces of Limpopo and Mpumalanga) (see studied material). Now, the study of male specimens allows providing the diagnosis of the genitalia. Macrocheilus dorsalis is recorded for Tanzania and Zambia for the first time.

Male genitalia ( Fig. 7a ). Median lobe straight, slightly constricted between basal bulb and shaft, apex roundacuminated and slightly downward (lateral view), apical margin rounded and acuminated (dorsal view), apical ostium with one pair of scaled sclerotized stripes on dorsum which extends backward, endophallus without large curled inward sclerotized plates; left paramere large and rounded, without any distal tooth. See also remarks under the median lobe of M. kudrnai n. sp.

Distribution. Republic of South Africa, Tanzania, Zambia.

Figures

FIGURE 5. Habitus of Macrocheilus (dorsal view). a, M. biguttatus, SEN (ACC); b, M. bimaculatus, GBI (ASC); c, M. clasispilus (holotype, plus labels); d, M. diplospilus (holotype, plus labels); e, M. dorsalis, ZAM (TAC); f, M. dorsiger, BFO (PSC); g, M. elegantulus (holotype, plus labels); h, M. hybridus, ZIM (TAC); i, M. labrosus, RCA (PSC).

FIGURE 6. Labrum of Macrocheilus (dorsal view). a, M. diplospilus, GBI (ASC); b, M. dorsalis, ZAM (TAC); c, M. dorsiger, BFO (PSC); d, M. hybridus, ZIM (TAC); e, M. labrosus, RCA (PSC).

FIGURE 7.Aedeagus of Macrocheilus: median lobe and right paramere (left, lateral view) and median lobe (right, dorsal view). a, M. dorsalis, ZAM (TAC); b, M. elegantulus, DOC? (MRAC); c, M. labrosus, RCA (PSC); d, M. longicollis, MOZ (PSC).