Digitonthophagus biflagellatus Génier

Génier, François & Moretto, Philippe, 2017, Digitonthophagus Balthasar, 1959: taxonomy, systematics, and morphological phylogeny of the genus revealing an African species complex (Coleoptera: Scarabaeidae: Scarabaeinae), Zootaxa 4248 (1), pp. 1-110: 37-39

publication ID

10.5281/zenodo.439444

publication LSID

lsid:zoobank.org:pub:71F0AC03-C1FB-40AB-8532-99A638FC91E9

persistent identifier

http://treatment.plazi.org/id/C93B1EB9-87CE-4E82-9017-F6D5D946DDFB

taxon LSID

lsid:zoobank.org:act:C93B1EB9-87CE-4E82-9017-F6D5D946DDFB

treatment provided by

Plazi

scientific name

Digitonthophagus biflagellatus Génier
status

new species

Digitonthophagus biflagellatus Génier  , new species

http://zoobank.org/urn:lsid:zoobank.org:act:C93B1EB9-87CE-4E82-9017-F6D5D946 DDFB ( Figs. 13View FIGURES 11 – 14, 35–36View FIGURES 31 – 38. 31, 33, 35, 37, 61View FIGURES 55 – 62, 77View FIGURES 71 – 78, 99–100, 125, 153–155; Map 6)

Type locality. Lake Ndutu area (02°59’S 35°01’E), Serengeti National Park, Shinyanga, Tanzania.

Diagnosis. Axial sclerite as long as or longer than subaxial sclerite ( Fig. 153View FIGURES 147 – 158).

Description. Holotype ♂ ( Fig. 13View FIGURES 11 – 14). Measurements. Length 11.0 mm, width 6.5 mm. Head ( Figs. 35–36View FIGURES 31 – 38. 31, 33, 35, 37). Anterior clypeal edge straight on median fifth in dorsal view; clypeofrontal carina broadly arcuate and interrupted at gena. Vertex lacking median tubercle, surface with punctures fine to small, separated by one to four diameters. Horns rather short, slightly divergent in frontal view, gradually tapering from base to apex; posterointernal edge unmodified basally, apicointernal surface lacking granules; genal edge upturned and distinctly angulate on anterior third, forming a broad angle with clypeal edge. Pronotum ( Fig. 61View FIGURES 55 – 62). Surface with granulate punctures restricted to anterior half medially, with distinct scattered umbilicate punctures on posterior half of disc; punctures weaker but distinct posterolaterally, with more-or-less distinct, minute punctures throughout. Anteromedian tubercle atrophied, simply round in lateral view, median longitudinal sulcus well defined; surface behind the eyes with a simple, round depression, surface of anterior angles convex; anterior half of lateral edge arcuate in dorsal and lateral view; posterior angles simply arcuate in dorsal view. Anterior hypomeral ridge arcuate, anterior hypomeral depression surface slightly darker in color medially. Elytra ( Fig. 13View FIGURES 11 – 14). Intervals 2 and 4 lacking fine granules from base to apex. Legs. Protibial apicointernal tooth enlarged, with dorsal ridge extending to apex. Aedeagus ( Fig. 125View FIGURES 119 – 134). Parameres with dorsal and ventral edges slightly diverging toward apex in lateral view. Internal sac sclerites ( Figs. 153–155View FIGURES 147 – 158). Axial sclerite weekly sclerotized, longer than subaxial sclerite, and almost straight. Subaxial sclerite, large basally, and abruptly reduced, extending straight and interrupted before apex of frontolateral peripheral sclerite apical portion, with fine and scattered villi on apical 10th. Frontolateral peripheral sclerite basoventral apophysis moderately developed; lacking medioventral carinae; right lateral fold produced into a rather large everted and open apically conical process, apical edge deeply emarginate externally and open internally, appearing tong shaped; left lateral lobe absent; subapicodorsal lobe membranous, not reaching anterior edge, apex set on right side in dorsal view; apical lobe round apically, narrow and directed obliquely on left side, apical villi regular in shape; subapicoventral lobe large, round and interrupted in line with apical lobe apically.

Variation. Measurements (94 ♂♂, 69 ♀♀). Length: male 7.5–11.5 mm (9.8 ± 0.9 mm), female 8.0–12.0 mm (9.8 ± 0.7 mm). Female allotype. Cephalic outline in dorsal view as in Fig. 77View FIGURES 71 – 78; vertex with a slightly sinuate, transverse carina, dorsal edge broadly arcuate in frontal view, lateral portion gradually sloping down posteriorly; anterior pronotal tubercles moderately developed, external lateral edges widening toward apex, anterolateral surface simply convex, anterosuperior edge slightly arcuate in dorsal view (Fig. 99), lateral portion of anterosuperior edge distinctly upturned (Fig. 100). Protibia short, with external teeth more robust.

Primary type data. Holotype ♂ ( OUMNH): [18 /05 /91 / L. Ndutu area, / Serengeti National Park / Tanzania, 35°1’E 2°59’S / dung-baited pitfall trap / R. Foster O.U.M. 2-1993] partly handwritten; [ WORLD / SCARAB. / DATABASE / WSD00030055] barcode labelGoogleMaps  ; HOLOTYPE ♂ / Digitonthophagus  / biflagellatus  n.sp. / des. F. Génier, 2016] red card.

Material examined (135 ♂♂, 82 ♀♀), distribution (Map 8): BURUNDI: [unspecified locality], [no date], R.P. Giraudin— 1 ♀, 4 ♂♂ (5 paratypes) ( MNHNAbout MNHN)  ; BURURI, Bururi (3°54'S, 29°31'E), [no date], R.P. Giraudin— 1 ♀, 1 ♂ (paratypes) ( MNHNAbout MNHN)GoogleMaps  ; Muyinga, Colline Kobero (2°38'59''S, 30°24'48''E), 10.ix.1940, H.-J. Brédo— 1 ♂ (paratype) ( IRSNBAbout IRSNB)GoogleMaps  ; RUTANA, 03°45’S 30°10’E, 2000 m (3°45'S, 30°10'E), iii.1968, R.P. Giraudin— 1 ♀, 1 ♂ (paratypes) ( OMOC)GoogleMaps  ; Mpinga (3°45'S, 30°10'E), [no date], R.P. Giraudin— 1 ♂ (paratype) ( MNHNAbout MNHN)GoogleMaps  ; DEMOCRATIC REPUBLIC OF THE CONGO: NORTH-KIVU, Parc National Rwindi [= SE Parc National Virunga] (1°23'S, 29°28'E), 26.iii.1979, [anonymous]— 1 ♂ (paratype) ( PHWC)GoogleMaps  ; Rutshuru (1°11'S, 29°27'E), 1927, G. Babault— 2 ♀♀, 1 ♂ (paratypes) ( MNHNAbout MNHN)GoogleMaps  ; SOUTH-KIVU, Bukavu (2°30'S, 28°52'E), 30.i.1952, C.GoogleMaps 

Verbeke—3 ♂♂ (3 paratypes) (IRSNB); KENYA: HOMA BAY, Baie de Kavirondo  , Lac Victoria (0°31'S, 34°29'E), ix–x.1903, C. Alluaud— 2 ♂♂ (2 paratypes) ( MNHNAbout MNHN); Baie de KavirondoGoogleMaps  , Lac Victoria (0°31'S, 34°29'E), xii.1911, Alluaud & Jeannel— 1 ♂ (paratype) ( MNHNAbout MNHN)GoogleMaps  ; Ile de Lusinga [= Rusinga ], Victoria-Nyanza N. - E. (0°24'S, 34°11'E), x.1903, C. Alluaud— 1 ♂ (paratype) ( IRSNBAbout IRSNB)GoogleMaps  ; KAJIADO, 60 km SW Nairobi , 1200 m (1°45'S, 36°21'E), 23.xii.1990, B.D. Gill— 2 ♀♀, 1 ♂ (paratypes) ( BDGC)GoogleMaps  ; KAKAMEGA, Ilala , 14 mi. E Mumias, 1372 m (0°17'N, 34°41'E), 18–21.vi.1911, SGoogleMaps  . A. Neave— 1 ♂ (paratype) ( BMNH)  ; KISUMU  , Kisumu (0°6'S, 34°46'E), [no date], P.S. Corbet— 2 ♀♀, 4 ♂♂ (6 paratypes) ( BMNH)GoogleMaps  ; MURANG’A, Fort Hall [= Muranga Town] (0°43'S, 37°9'E), i.1912, Alluaud & Jeannel— 1 ♂ (paratype) ( MNHNAbout MNHN)GoogleMaps  ; NAIROBI, Nairobi (1°17'S, 36°49'E), 24.iv.1957, [anonymous]— 2 ♀♀, 2 ♂♂ (4 paratypes) ( BMNH)GoogleMaps  ; Nairobi National Park (1°22'S, 36°51'E), iv.1993, W. Hoek— 1 ♂ (paratype) ( CEMT)GoogleMaps  ; NANDI, Kamililo , vi.1903, F.J. Jackson— 1 ♂ (paratype) ( BMNH)  ; NAROK, Lemek Valey (1°6'S, 35°23'E), ii.1913, G.B. — 6 ♀♀, 8 ♂♂ (14 paratypes) ( FGICAbout FGIC, MNHNAbout MNHN)GoogleMaps  ; TAITA TAVETA, Bura (3°2'S, 38°19'E), i–iv.1904, C. Alluaud— 5 ♂♂ (5 paratypes) ( IRSNBAbout IRSNB, MNHNAbout MNHN)GoogleMaps  ; Mwatate (3°30'S, 38°22'E), i– iv.1904, C. Alluaud— 1 ♀, 3 ♂♂ (4 paratypes) ( IRSNBAbout IRSNB, MNHNAbout MNHN)GoogleMaps  ; Mwatate , 25 km SW Voi (3°30'S, 38°22'E), 26.xii.1990, B.D. Gill— 2 ♀♀, 2 ♂♂ (4 paratypes) ( BDGC)GoogleMaps  ; VIHIGA, Forêt de Kakamegoes [= Kakamega], Environs de Kaimosi, Mont-Elgon , 2000 m (0°10'N, 34°52'E), 1913, G. Babault— 6 ♂♂ (6 paratypes) ( FGICAbout FGIC, MNHNAbout MNHN)GoogleMaps  ; RWANDA: EASTERN, Ranch Mpanga (2°3'13''S, 30°47'0''E), iii.1987, [anonymous]— 2 ♀♀, 3 ♂♂ (5 paratypes) ( PSCW)GoogleMaps  ; NORTHERN, Bugarula District , [unspecified locality] (1°33'S, 29°42'E), 21.viii.1941, H.-J. Brédo— 2 ♀♀, 3 ♂♂ (5 paratypes) ( IRSNBAbout IRSNB)GoogleMaps  ; WESTERN, Rwaza (1°42'S, 29°16'E), 1927, G. Babault— 2 ♂♂ (2 paratypes) ( MNHNAbout MNHN)GoogleMaps  ; TANZANIA: Lake Rukwa, iv.1945, H.-J. Brédo— 1 ♀, 2 ♂♂ (3 paratypes) ( FGICAbout FGIC, IRSNBAbout IRSNB)  ; Lake Rukwa, xii.1948, H.-J. Brédo— 1 ♀, 3 ♂♂ (4 paratypes) ( IRSNBAbout IRSNB)  ; ARUSHA  , Arusha environs (3°22'S, 36°41'E), 3–4.iv.1997, M. Kuboň— 5 ♀♀, 1 ♂ (paratypes) ( PMOC)GoogleMaps  ; Karatu Ndutu Safari Lodge, Serengeti (3°1'S, 35°0'E), 15.xi.1990, R. Foster— 1 ♂ (paratype) ( BDGC)GoogleMaps  ; Mumba Hills (3°30'S, 35°3'E), 8.iii.1938, Dr. S.G. Kohl- Larsen— 1 ♀ (paratype) ( SMFAbout SMF)GoogleMaps  ; Mumba Hills (3°30'S, 35°3'E), 23.iii.1938, Dr. S.G. Kohl-Larsen— 1 ♂ (paratype) ( SMFAbout SMF)GoogleMaps  ; Mumba Hills (3°30'S, 35°3'E), 24.iii.1938, Dr. S.G. Kohl-Larsen— 1 ♂ (paratype) ( SMFAbout SMF)GoogleMaps  ; Orekeryan, Mount Longido (2°43'47''S, 36°43'26''E), 8.vi–9.viii.2012, Smith, Takano & Garner— 1 ♂ (paratype) ( BMNH)GoogleMaps  ; DODOMA, 40 km N Dodoma, 1100 m (5°54'S, 35°45'E), 15.xii.2007, F. Kantner— 5 ♀♀, 3 ♂♂ (8 paratypes) ( SMNSAbout SMNS)GoogleMaps  ; 70 km N Dodoma, 1330 m (5°40'S, 35°48'E), 17.xii.2006, F. Kantner— 1 ♂ (paratype) ( SMNSAbout SMNS)GoogleMaps  ; Lulanguru , 17 mi. W Tabora, 1148 m (5°6'S, 32°38'E), x–xii.1917, G.D. H. Carpenter— 1 ♀, 1 ♂ (paratypes) ( BMNH)GoogleMaps  ; Tosamaganga , near Iringa (6°40'S, 36°19'E), [no date], W. Ruddock— 1 ♂ (paratype) ( BMNH)GoogleMaps  ; IRINGA, Magema, Ulembwe Village , 2048 m (9°18.389'S, 34°37.213'E), 7.i.2011, P. Darge— 1 ♂ (paratype) ( MHNLAbout MHNL)GoogleMaps  ; KILIMANDJARO, Same (4°4'S, 37°45'E), v.1962, [anonymous]— 2 ♂♂ (2 paratypes) ( CNCAbout CNC)GoogleMaps  ; Zone inférieure, Kilimandjaro, i–iv.1904, C. Alluaud— 1 ♀, 3 ♂♂ (4 paratypes) ( MNHNAbout MNHN)  ; MANYARA, 100 km NNE Singida, 1650 m (4°31'S, 35°21'E), 20.xii.2006, F. Kantner— 5 ♀♀, 2 ♂♂ (7 paratypes) ( SMNSAbout SMNS)GoogleMaps  ; Giting, Mount Hanang , 1964 m (4°24'14''S, 35°24'56''E), 22–26.xi.2011, R. Smith & H. Takano— 8 ♀♀, 2 ♂♂ (10 paratypes) ( BMNH)GoogleMaps  ; MARA, Shirati (1°9'S, 34°2'E), 1909, [anonymous]— 5 ♀♀, 1 ♂ (paratypes) ( SMFAbout SMF)GoogleMaps  ; MOROGORO, Llonga (9°2'S, 36°51'E), 21.x.1966, Robertson— 1 ♀, 2 ♂♂ (3 paratypes) ( FETC)GoogleMaps  ; Majawanga , 1400 m (6°5'S, 36°50'E), 14–18.iii.2004, S. Tind Nielsen— 1 ♀, 3 ♂♂ (4 paratypes) ( ZMUCAbout ZMUC)GoogleMaps  ; RUKWA, Tumba (7°7'S, 31°10'E), 15.xii.1950, H.-J. Brédo— 1 ♀, 2 ♂♂ (3 paratypes) ( FGICAbout FGIC, IRSNBAbout IRSNB)GoogleMaps  ; SHINYANGA  , Lake Ndutu area, Serengeti National Park (2°59'S, 35°1'E), 15.xi.1990, R. Foster— 3 ♀♀, 2 ♂♂ (allotype, 4 paratypes) ( OUMNH)GoogleMaps  ; Lake Ndutu area, Serengeti National Park (2°59'S, 35°1'E), 17.xii.1990, R. Foster— 3 ♀♀, 1 ♂ (paratypes) ( OUMNH)GoogleMaps  ; Lake Ndutu area, Serengeti National Park (2°59'S, 35°1'E), 18.xii.1990, R. Foster— 1 ♂ (paratype) ( OUMNH)GoogleMaps  ; Lake Ndutu area, Serengeti National Park (2°59'S, 35°1'E), 22.xii.1990, R. Foster— 1 ♂ (paratype) ( OUMNH)GoogleMaps  ; Lake Ndutu area, Serengeti National Park (2°59'S, 35°1'E), 26.xii.1990, R. Foster— 1 ♂ (paratype) ( OUMNH)GoogleMaps  ; Lake Ndutu area, Serengeti National Park (2°59'S, 35°1'E), 18.v.1991, R. Foster— 2 ♂♂ (holotype, 1 paratype) ( OUMNH)GoogleMaps  ; Old Shinyanga (3°34'S, 33°25'E), 1.xii.1935, E. Burtt— 1 ♂ (paratype) ( BMNH)GoogleMaps  ; Old Shinyanga (3°34'S, 33°25'E), 26.i.1936, E. Burtt— 1 ♂ (paratype) ( BMNH)GoogleMaps  ; Old Shinyanga (3°34'S, 33°25'E), 10.iv.1936, E. Burtt— 1 ♀ (paratype) ( BMNH)GoogleMaps  ; TABORA, Tabore (5°2'S, 32°49'E), 1886, Révoil— 1 ♂ (paratype) ( MNHNAbout MNHN)GoogleMaps  ; UGANDA: CENTRAL, Entebbe (0°4'N, 32°28'E), ii–vii.1972, H. Falke— 10 ♀♀, 9 ♂♂ (19 paratypes) ( CNCAbout CNC, FGICAbout FGIC)GoogleMaps  ; Entebbe (0°4'N, 32°28'E), ii.1972, H. Falke— 2 ♂♂ (2 paratypes) ( CNCAbout CNC)GoogleMaps  ; Entebbe (0°4'N, 32°28'E), 22.vi.1912, CGoogleMaps  . A. Wiggins— 1 ♀ (paratype) ( OUMNH); Entebbe (0°4'N, 32°28'E), 15.viii.1912, CGoogleMaps  . A. Wiggins— 1 ♂ (paratype) ( OUMNH)  ; Entebbe (0°4'N, 32°28'E), 9.ii.1914, [anonymous]— 1 ♂ (paratype) ( BMNH)GoogleMaps  ; Entebbe (0°4'N, 32°28'E), 11.ii.1914, [anonymous]— 1 ♀ (paratype) ( BMNH)GoogleMaps  ; Entebbe (0°4'N, 32°28'E), 20–28.v.1914, C.C. Gowdey— 2 ♂♂ (2 paratypes) ( BMNH)GoogleMaps  ; Kampala (0°21'N, 32°35'E), 1–10.i.1918, C.C. Gowdey— 1 ♀, 5 ♂♂ (6 paratypes) ( BMNH)GoogleMaps  ; Kampala (0°21'N, 32°35'E), 11.ii.1918, [anonymous]— 1 ♀, 1 ♂ (paratypes) ( BMNH)GoogleMaps  ; Région du Bouganda (0°27'S, 31°55'E), 1906, [anonymous]— 1 ♂ (paratype) ( IRSNBAbout IRSNB)GoogleMaps  ; [unspecified locality] (0°15'N, 32°15'E), i–ii.1909, C. Alluaud— 1 ♀, 3 ♂♂ (4 paratypes) ( MNHNAbout MNHN); EASTERNGoogleMaps  , Jinja, 1151 m (0°26'N, 33°12'E), 14.ii.1906, CGoogleMaps  . A. Wiggins— 1 ♂ (paratype) ( OUMNH)  ; WESTERN, Kafu River near Hoima  , Kampala Road (1°18'N, 31°27'E), 29–31.xii.1911, SGoogleMaps  . A. Neave— 1 ♂ (paratype) ( BMNH)  ; Province d’Unyoro, Région de l’Albert-Nyanza (1°17'N, 31°10'E), ii.1909, C. Alluaud— 1 ♂ (paratype) ( MNHNAbout MNHN)GoogleMaps  ; ZAMBIA: NORTHERN PROVINCE, Mbala (8°50'S, 31°28'E), 15.xii.1943, H.-J. Brédo— 2 ♂♂ (2 paratypes) ( IRSNBAbout IRSNB)GoogleMaps  .

MAP 8. Distribution of Digitonthophagus biflagellatus  .

Etymology. Biflagellatus  is a Latin adjective referring to the configuration of the axial and subaxial sclerites of the internal sac.

Natural history. The single specimen with habitat data was collected in woodland in Eastern Province, Uganda. The few specimens with collecting data indicate light and dung traps. 

MNHN

Museum National d'Histoire Naturelle

IRSNB

Institut Royal des Sciences Naturelles de Belgique

FGIC

Francois Genier

SMF

Forschungsinstitut und Natur-Museum Senckenberg

SMNS

Staatliches Museum fuer Naturkund Stuttgart

MHNL

Musee Guimet d'Histoire Naturelle de Lyon

CNC

Canadian National Collection of Insects, Arachnids, and Nematodes

ZMUC

Zoological Museum, University of Copenhagen