Phoberus instabilis ( Haaf, 1953 )

Strümpher, Werner P., Huchet, Jean-Bernard & Costa-Silva, Vinícius Da, 2025, Phoberus sulcatus (Thunberg, 1787) sensu lato: in-depth morphological analysis of male genitalia reveals three cryptic species (Coleoptera: Scarabaeoidea: Trogidae), Zootaxa 5660 (3), pp. 301-329 : 313-316

publication ID

https://doi.org/10.11646/zootaxa.5660.3.1

publication LSID

lsid:zoobank.org:pub:4F575391-D231-470D-8C9F-8E90B7C17E65

persistent identifier

https://treatment.plazi.org/id/039B87A2-FFF3-3B47-D7F2-FF4AFEA4F822

treatment provided by

Plazi

scientific name

Phoberus instabilis ( Haaf, 1953 )
status

 

Phoberus instabilis ( Haaf, 1953) View in CoL , revalidated and new combination

( Figs 6–8, 9–12, 19, 22, 24)

Trox instabilis Haaf, 1953: 331 View in CoL (original description); Haaf 1959: 478 (checklist, localities); Scholtz 1978: 83–84 (distribution, as Trox sulcatus View in CoL ); Scholtz 1979: 193 (new junior synonym of Trox sulcatus View in CoL ); Scholtz 1980: 89 (as a synonym of Trox (Trox) sulcatus View in CoL ); Scholtz 1982: 7 (catalogue, as a synonym of Trox (Trox) sulcatus View in CoL ); Louw 1987: 421, 435 (faunistics, as Trox sulcatus View in CoL ); Zidek 2013: 11, 17 (checklist, as synonym of Trox (Phoberus) sulcatus View in CoL ); Zídek 2017: 102, 109 (checklist, as synonym of Phoberus sulcatus View in CoL ); Muvengwi et al. 2018: 8488 (faunistics, as Trox sulcatus View in CoL ).

Type locality. Zimbabwe, Harare Metropolitan Province , Harare; as “ Salisbury, Southern Rhodesia”. Harare is the capital of Zimbabwe and lies at an average elevation of 1,461 m above mean sea level .

Type material examined (11 type specimens). Holotype ♂ ( NHMB, aedeagus extracted) ( Figs 6–8): Rectangle, white: “Salisbury [= Harare; 17°49′S 31°03′E] | S. Rhodesia [ Zimbabwe] | Zumpt XI [19]51 || Rectangle, white: “Museum Frey | Tutzing” || Rectangle, white with red bars at top and bottom, printed red text interspersed with black handwriting: “ HOLOTYPUS | Trox | instabilis sp.n. | det.Dr.E. HAAF 1953 ” || Rectangle, white cardstock with black margin: “ Phoberus instabilis | ( Haaf, 1953) | stat. rev., comb. nov. | det. Strümpher et al. 2023 ”. Paratype 1♂ ( NHMB, aedeagus extracted): Rectangle, yellowing white: “Transvaal | 1883” || Narrow rectangle, yellowing white with black bars at top: “EX MUSEO | N. VAN DE POLL” || Rectangle, white, printed text interspersed with handwriting: “ PARATYPUS | Trox | instabilis sp.n. | det.Dr.E. HAAF 1953 ” || Rectangle, white cardstock with black margin: “ Phoberus instabilis | ( Haaf, 1953) | stat. rev., comb. nov. | det. Strümpher et al. 2023 ”. Paratypes 1♂, 1♀ ( NHMB): Rectangle, yellowing white with printed text: “Johannesburg [ca. 26°12′S 28°02′E] | Transv.S.Afr. | Zumpt 14 22.XII.[19]52” || Rectangle, white, printed text interspersed with handwriting: “ PARATYPUS | Trox | instabilis sp.n. | det.Dr.E. HAAF 1953 ” || Rectangle, white cardstock with black margin: “ Phoberus instabilis | ( Haaf, 1953) | stat. rev., comb. nov. | det. Strümpher et al. 2023 ”. Paratype female with an additional label, white: “ ♀ ”. Paratype 1♂ ( TMSA, aedeagus extracted): Rectangle, white with green bars on margin, printed text: “Lydenburg [now Mashishing: South Africa, Mpumalanga, ca. 25°04′S 30°26′E] | Distr. 1896 | P. A. Krantz” || Narrow rectangle, red: “ PARATYPE ” || Rectangle, white, printed text interspersed with handwriting: “ Trox ” | instabilis Haaf | det. Dr.E. Haaf 1953 ” || Rectangle, white cardstock with orange margin, printed text with handwriting: “ Paratypus 1953 | Trox | instabilis | E. Haaf sp.n. ” || Rectangle, white cardstock with black margin: “ Phoberus instabilis | ( Haaf, 1953) | stat. rev., comb. nov. | det. Strümpher et al. 2023 ”. Paratypes 3♂♂ ( NHMB, aedeagi extracted): Rectangle, faded blue cardstock, printed text: “MUSEUM PARIS | BASOUTOLAND [ Lesotho] | MASERU [Maseru District, 29°18′S 27°29′E] | R. ELLENBERGER 1923” || Rectangle, white, printed text interspersed with handwriting: “ PARATYPUS | Trox | instabilis sp.n. | det.Dr.E. HAAF 1953 ” || Rectangle, white cardstock with black margin: “ Phoberus instabilis | ( Haaf, 1953) | stat. rev., comb. nov. | det. Strümpher et al. 2023 ”. Paratype 1♂ ( RBINS, aedeagus extracted, examined through detailed photographs available at https://virtualcollections.naturalsciences. be/virtual-collections/entomology/coleoptera/trogidae/trox-instabilis-haaf-1953): Rectangle, faded blue cardstock, printed black text, with two white labels glued to faded blue cardstock, first white label with handwriting, second white label with printed text: Coll . R. I. Sca. N. B. | South Africa || 1st white label: “Orange | F. State” || 2nd white label: “EX MUSEO | N VAN DE POLL” || Rectangle, faded red, printed text framed: “ Para- | type” || Rectangle white, printed text interspersed with handwriting: “ Trox ” | instabilis Haaf | det.Dr.E. Haaf 1953 ” || Rectangle white, printed text interspersed with handwriting: “ TROX | sulcatus Thunb. | det. C.H. SCHOLTZ 1979 ” || Rectangle, white cardstock with black margin: “ Phoberus instabilis | ( Haaf, 1953) | stat. rev., comb. nov. | det. Strümpher et al. 2023 ”. Paratype 1♀ ( MNHN): Rectangle, faded blue cardstock, printed text: “MUSEUM PARIS | BASOUTOLAND [ Lesotho] | MASERU | R. ELLENBERGER 1923” || Narrow rectangle, red: “ PARATYPE ” || white square: “ ♀ ” || Rectangle, white, printed text interspersed with handwriting: “ Trox | instabilis Haaf | det.Dr.E. HAAF 1953 ” || Rectangle, white, printed text interspersed with handwriting: “ TROX | sulcatus Thunb. | det. C.H. SCHOLTZ 1980 ” || Rectangle, white cardstock with black margin: “ Phoberus instabilis | ( Haaf, 1953) | stat. rev., comb. nov. | det. Strümpher et al. 2023 ”. Paratype 1♀ ( MNHN): Rectangle, faded blue cardstock, printed text: “MUSEUM PARIS | ANCIENNE COLLECTION” || white square: “ ♀ ” || Narrow rectangle, red: “ PARATYPE ” || Rectangle, white, printed text interspersed with handwriting: “ Trox | instabilis Haaf | det.Dr.E. HAAF 1953 ” || Rectangle, white cardstock with black margin: “ Phoberus instabilis | ( Haaf, 1953) | stat. rev., comb. nov. | det. Strümpher et al. 2023 ”. Paratype 1 unsexed ( HNHM): Rectangle, yellowing white, printed text with handwriting: “Africa m. [meridionalis; probably present-day North West province, South Africa]” | coll. Staudinger” || Rectangle, yellowing white, printed text with handwriting: Trox | sulcatus | det. J. Frivaldszky || Rectangle, white, printed text with handwriting: Trox | sulcatus | Thoms. | det. Dr.Endrődi || Red cardstock, printed text: “ PARATYPE ” || Rectangle, yellowing white with black border, printed text with handwriting: “631 | 12” || Rectangle, red framed card, printed text with handwriting: “ Paratypus ” | Trox | instabilis | Haaf” || Rectangle, white, printed text interspersed with handwriting: “ Trox | instabilis Haaf | det.Dr.E. Haaf 1953 ” || Rectangle, white cardstock with black margin: “ Phoberus instabilis | ( Haaf, 1953) | stat. rev., comb. nov. | det. Strümpher et al. 2023 ”.

Remarks. Haaf (1953) described Trox instabilis from 23 individuals. We studied the entire type series, which includes the male holotype (NHMB) and 22 paratypes (7 NHMB; 1 FMNH; 2 TMSA; 4 MNHN; 1 RBINS; 4 NHRS; 1 SDEI; 1 NHMW, 1 HMNH). According to the current treatment, the original type series comprises three distinct species. Eleven paratypes belong to Phoberus instabilis revalidated and new combination, nine belong to Phoberus sulcatus (this study), and two belong to the new species described herein.

Additional material with precise localities examined (502 specimens). ZIMBABWE: Mashonaland Central. 1♂ Mazowe [17°31′S 30°58′E], 1895, Darling ( SAMC) GoogleMaps . Matabeleland North. 1♂ Victoria Falls , [17°55′S 25°51′E], 10.iv.1927, RHR Stevenson ( SAMC) GoogleMaps . Bulawayo. 1♂ Khami , [20°09′S 28°25′E], 2.xi.1954 ( SAMC) GoogleMaps . 1♀ idem but 25.xi.1955 ( SAMC) GoogleMaps . 1♂ Bulawayo [20°10′S 28°35′E], 18.xi.1929, RHR Stevenson ( TMSA) GoogleMaps . BOTSWANA: Central District. 1♂ Serowe 5 km SE, Farmers Brigade, near Swaneng Hill , [22°24′44″S 26°45′32″E], 20.x.1988, light trap, P Forchhammer ( SAMC) GoogleMaps . 1♀ idem but ix.1989, Malaise trap ( SAMC) GoogleMaps . 1♀ Serowe 4 km S, Swaneng Hill School , [22°24′47″S 26°44′54″E], mercury vapour lamp, P Forchhammer ( CMNC) GoogleMaps . SOUTH AFRICA: Limpopo. 1♀ Soutpansberg, Ingwe Motel [now Ingwe Ranch], 22°58′S 29°56′E, 1,200 m, 23–24.xi.1992, H Hölzel, P Ohm, MW Mansell ( SANC) GoogleMaps . 1♂ Soutpansberg, near Vivo, Goro Research Camp , 22°59′S 29°26′E, 19.iii.2018, light trap, WP Strümpher ( TMSA) GoogleMaps . 1♀ Soutpansberg, Lajuma Research Centre , [23°02′S 29°26′30″E], 16.i.2016, C Munyai, P Tshililo ( TMSA) GoogleMaps . 2♂, 3♀ Soutpansberg, Schoemansdal [environmental education centre], [ca. 23°01′S 29°43′E], 2.v.1977 GoogleMaps , CH Scholtz ( SAMC) . 1 spec. unsexed idem ( CMNC) . 1 spec. unsexed idem ( RMCA) . 1♂ Louis Trichardt [23°03′S 29°54′E], 6.ii.1952 ( SAMC) GoogleMaps . 3♂, 3♀ Vivo 21 km N, Blouberg Nature Reserve , 23°01′S 29°04′E, 991 m, 20.xii.2003, A Frolov, C Deschodt ( TMSA) GoogleMaps . 2 unsexed Blouberg at Blouberg settlement, 23°05′S 28°59′E, 1,680 m, 4–7.xii.1990, SL Chown, HE Steenkamp, MA McGeogh ( SANC) GoogleMaps . 1♂ Polokwane , [23°54′S 29°27′E], JP Cregoe ( SAMC) GoogleMaps . 1♂ Mookgophong, Bundy Lodge , 24°27′S 28°42′E, 29.x.2004, WP Strümpher ( SAMC) GoogleMaps . 1♂ Waterberg, Meletse [farm], 24°36′S 27°39′E, 13.ii.2016, R Müller ( TMSA) GoogleMaps . 1♂ Thabazimbi, Ben Alberts Nature Reserve , 24°37′S 27°23′E, 24–28.xi. 1980, SJ van Tonder ( SANC) GoogleMaps . 1♂ Mookgophong, Nylsvley Nature Reserve , 24°39′S 28°42′E, 28.xi.1979, E Grei ( SANC) GoogleMaps . 1♀ idem but ix.1980 ( SANC) GoogleMaps . 1♂, 1♀ Radium, Langkuil Private Game Farm , 20 km S Warmbad; ca. 25°02′S 28°11′E], T Beyers ( TMSA) GoogleMaps . Mpumalanga. 1♂ Kruger National Park, Skukuza Rest Camp [24°59′S 31°36′E], xii.1977 GoogleMaps , CH Scholtz ( SAMC) . 1♀ Siyabuswa , 25°07′S 29°03′E, 21.ii.1998, Poto ( TMSA) GoogleMaps . 1♀ Roossenekal , Booysensdal Mine North, 25°07′S 30°08′E, 25.x.2000, E-Y:3435, at light, Museum staff ( TMSA) GoogleMaps . 1♂ Stofberg, Laersdrif , [25°22′S 29°51′E], 8–13.xi.1974, J Dedman ( SAMC) GoogleMaps . 1♂ Mbombela , De Hoop 203 [farm], [ca. 25°32′S 31°09′E], 20–21.xi.1972, A Strydom ( TMSA) GoogleMaps . 1♀ Barberton, Saddleback Hill [ca. 25°47′S 31°05′E], Barberton, xii.1998, van Viegen ( TMSA) GoogleMaps . 7♂ Lake Chrissie farm, 5 km SE of Chrissiesmeer, 26°18′S 30°15′E, 1,700 m, 26.xi.2002, in remains of dead sheep, R Stals ( SANC) GoogleMaps . Gauteng. 1♂ Bronkhorstpruit, Ezemvelo Nature Reserve , 25°42′S 29°01′E, 1,374 m, 26.i.2004, E-Y:3605, light trap, TMSA staff ( TMSA) GoogleMaps . 1♂ idem but 27.i.2004, E-Y:3606, pitfall trap, R Müller ( TMSA) GoogleMaps . 1♀ Bronkhorstpruit, Rhenosterpoort Private Nature Reserve , 25°45′S 28°58′E, 19.ii.1975, PS Pots & MJ Scoble ( TMSA) GoogleMaps . 2♂, 1♀ idem but 16.xi.1975, E-Y:937, bushveld, sifted from litter, S Endrödy-Younga ( TMSA) GoogleMaps . 1♀ Boekenhoutskloof [farm], 25°31′S 28°26′E, 25.iii.1994, J Harrison ( TMSA) GoogleMaps . 2♀ Pretoria 25 km E, Bashewa Plot 12, 25°56′S 28°24′E, 1,550 m, 28.xii.1995, R Stals ( SANC) GoogleMaps . 1 unsexed Pretoria, Roodeplaat [ARC experimental farm], 25°36′S 28°21′E, 22.xi.1979, M Bolton ( SANC) GoogleMaps . 1♂ idem but x.1979, C Kok ( SANC) GoogleMaps . 1♀ idem but xi.1979, SJ van Tonder ( SANC) GoogleMaps . 1♀ 1♂ Pretoria, Shere [25°48′S 28°21′E], 27.x.1963, R Hofman ( TMSA) GoogleMaps . 1♀ Pretoria , [ca. 25°44′S 28°13′E], xi.1924, HJ Heske ( TMSA) GoogleMaps . 11♂ idem but 5.iii.1931, C.S. ( SAMC) GoogleMaps . ♂ idem but 5.iv.1932, DHB ( SAMC) GoogleMaps . 1♀ Pretoria , 1.1.1975, L Schulze ( TMSA) . 1♀ Pretoria North, 25°41′S 28°11′E, ix.1937, G van Son ( TMSA) GoogleMaps . 4♂, 2♀ Pretoria, Onderstepoort Nature Reserve, Kaalplaas , [25°38′S 28°10′E], 11–16.v.1977, J Boomker ( SAMC) GoogleMaps . 2 spec. unsexed idem but 16.v.1977 ( RMCA) GoogleMaps . 2♂, 1♀ Broederstroom, Vlakplaas portion 53 [farm], Protea Ranch , [25°49′30″S 28°01′E], 2–15.xi.2008, M Paulsen ( TMSA) GoogleMaps . 1♂ Johannesburg , [ca. 26°12′S 28°02′E], x.1901 ( TMSA) GoogleMaps . 1♂ idem but xii.1934, G Kobrow ( SAMC) GoogleMaps . 1♂ idem but 30.xii.1945, A Capener ( TMSA) GoogleMaps . 1♀ idem but iii.1963, F Zumpt ( NHMB) GoogleMaps . 1♀ Johannesburg, Klipriviersberg Municipal Nature Reserve [26°18′S 28°01′E], 3.xi.2013 ( TMSA) GoogleMaps . 1♂, 1♀ West Rand District Municipality, Nascott Game Park [now John Nash Nature Reserve,], 25°54′S 27°46′E, pitfall traps: 1.xi.1985, E-Y:2567, G du Plessis ( TMSA) GoogleMaps . 1♀ idem but 28.xi.1985, E-Y:2568 ( TMSA) GoogleMaps . 1♀ idem but 3.iii.1986, E-Y:2571 ( TMSA) GoogleMaps . 2♀ idem but 17.iv.1986, E-Y:2572 ( TMSA) GoogleMaps . 1♂ idem but 14.viii.1986, E-Y:2574 ( TMSA) GoogleMaps . 1♂ idem but 1.xi–29.xi.1985 ( TMSA) GoogleMaps . 1♂ idem but 23.ix–23.xi.1986 ( TMSA) GoogleMaps . 1♂ Krugersdorp Game Reserve [26°06′S 27°43′E], 30.ix.2008, light trap, E Pretorius ( TMSA) GoogleMaps . 1♂, 2♀ Vereeniging , [26°40′S 27°56′E], 15.xii.1915 ( SANC) GoogleMaps . North West. Hartbeespoort, Daspoortrant, Saartjiesnek [25°46′S 27°56′E], ii.1978, E Holm ( SAMC) GoogleMaps . 1♂ Hartbeespoort , [ca. 25°44′S 27°53′E], i.1961, E Holm ( SAMC) GoogleMaps . 1♀ Rustenburg, Buffelspoort Dam , 25°47′S 27°29′E, 9.x.1983, RG Oberprieler ( SANC) GoogleMaps . 1♀ Rustenburg Nature Reserve , 25°40′S 27°12′E, 17–20.iii.1980, WA Harrop ( SANC) GoogleMaps . 2♀ Venterskroon, Vredefort Dome , 26°50′S 27°19′E, 1,388 m, 19–20.ii.2012, E-Y:3934, disturbed habitat, R Müller ( TMSA) GoogleMaps . 1♂, 1♀ idem but E-Y:3935, at light ( TMSA) GoogleMaps . 1♀ Potchefstroom [ca. 26°43′S 27°05′E], 28.xii.1976, TW Drinkwater ( SANC) GoogleMaps . 1♂ idem but 7.i.1977 ( SAMC) GoogleMaps . 1♂ idem but 5.iii.1988, AE Gildenhuys ( SAMC) GoogleMaps . 1♀ Koster , 25°52′S 26°54′E, 16.xi1993, R Stals, M Vogt, F Joubert ( SANC) GoogleMaps . 1♂ Zeerust 23 km NE, Meseg, Enzelsberg , 25°22′S 26°14′E, 20–22.ii.2009, 1,300 m, CD Theron ( CEMT) GoogleMaps . Northern Cape. 1♂ Jan Kempdorp , [ca. 27°55′S 24°50′E], i.1961, H.S. ( SAMC) GoogleMaps . 2♂, 1♀ Barkly West, Sydney on Vaal , 28°27′S 24°19′E, 7–9.iii.1990, S Louw ( BMSA) GoogleMaps . 1♂ Barkly West, Vaalbos National Park [deproclaimed], 28°34′S 24°18′E, 7–9.iii.1990, S Louw ( BMSA) GoogleMaps . 1♀ Kimberley , [ca. 28°43′S 24°45′E], 30.i.1948, RJ Power ( SAMC) GoogleMaps . 1♂ idem but 3.iv.1948 ( SAMC) GoogleMaps . 1♀ Kimberley, Dronfield Nature Reserve [ca. 28°37′S 24°48′E]. 1.iv.2023, H de Klerk ( TMSA) GoogleMaps . 1♀ Kimberley, Riverton [28°31′S 24°42′E], 16.xi.1961, HAD van Schalkwyk ( SANC) GoogleMaps . 1♀ Kimberley, Langeberg 138 [farm], 28°55′S 24°36′E, pitfall traps: xi.1987 – iii.1988 ( BMSA) GoogleMaps . 1♂, 2♀ Schmidtsdrif, Rooipoort [farm], 28°38′S 24°16′E, 1,129 m, 3.iii.2009, E- Y:3847, Kalahari bushveld, light trap, D MacFayden, R Müller ( TMSA) GoogleMaps . 1♀ Schmidtsdrif , [28°42′S 24°03′E], 2.x.1954, G van Son ( TMSA) GoogleMaps . 1♂ Kuruman [27°28′S 23°25′E], 8.iv.1933, G van Son ( TMSA) GoogleMaps . 1♀ Sishen 5 km S, 27°50′S 22°59′E, xi.1996, light at night, E Holm ( SANC) GoogleMaps . 1♀ Groblershoop , 28°53′S 21°59′E, 1–7.iv.1980, CG Moolman ( SANC) GoogleMaps . Free State. 1♀ Sasolburg , 26°49′S 27°49′E, 20.xi.1988, N Duke ( SANC) GoogleMaps . 1♂ Parys 4 km E, Abel 52 [farm], 26°54′S 27°35′E, 4–7.xii. 1992, M Krüger ( TMSA) GoogleMaps . 1♂ Koppies , [27°14′S 27°35′E], 1.i.1982, RS van Zyl ( BMSA) GoogleMaps . 1 unsexed Heilbron, Uitsien 1449 [farm], SE 2727 Db , 26–30.xii.1982, A van Rensburg ( BMSA) . 1♀ Bothaville , [27°24′S 26°37′E], 30.iv.[18]99, Dr Brauns ( TMSA) GoogleMaps . 4♂, 2♀ Bothaville, Deelfontein 482 [farm], 27°07′S 26°35′E, 12–22.iv.1977, GW & MC Ferreira ( BMSA) GoogleMaps . 1♂, 1♀ idem but 13–17.ix.1978,A Strydom ( BMSA) GoogleMaps . 10♂, 16♀ idem but viii–x.1986 ( BMSA) GoogleMaps . 1♂ Kroonstad [27°40′S 27°14′E], 17.i.1965, DJ Brothers ( TMSA) GoogleMaps . 1 spec. unsexed Lindley, Middelpunt 760 [farm], 28°05′S 28°00′E, ix.1985, A van Wyk ( BMSA) GoogleMaps . 1♂ Hoopstad, Sandveld Nature Reserve , [ca. 27°38′S 25°41′E], 8–12.ii.1982, Entomology Dept. ( BMSA) GoogleMaps . 1♀ Hoopstad, Swartsrus 1193 [farm], 27°45′S 25°30′E, iv.1985, Entomology Dept. ( BMSA) GoogleMaps . 6♂, 2♀ Hoopstad, Sophiasdal 280 [farm], [ca. 27°54′S 25°45′E], 7–8.ii.1978, A Strydom ( BMSA) GoogleMaps . 1♀ idem but 4.iii.1978 ( BMSA) GoogleMaps . 1♀ idem but iii–v.1982 ( BMSA) GoogleMaps . 1♂ Bultfontein, Hartenbosch 43 [farm], [ca. 28°17′S 26°01′E], 1–2.ii.1978, A Strydom ( BMSA) GoogleMaps . 3♂, 2♀ Boshof , [28°32′S 25°14′E], 4.xii.1976, E Holm ( SAMC) GoogleMaps . 1♂ idem ( RMCA) GoogleMaps . 1 spec. unsexed idem but GoogleMaps CH Scholtz ( CMNC) . 1 spec. unsexed Boshof 20 km W, [ca. 28°32′S 25°01′E], 12–14.xii.1984, H Howden ( CMNC) GoogleMaps . 9♂, 9♀ Voorspoed 1585 [farm], near Boshof, SE 2825 Cd [ca. 28°52′S 25°46′E], 21–28.iii.1977, A Strydom ( BMSA) GoogleMaps . 1♀ idem but 15–16.ii.1978 ( BMSA) GoogleMaps . 2♂, 2♀ Boshof, Wesselsdam 379 [farm], near SE 2825 Ba [ca. 28°09′S 25°36′E], 15–16.ii.1978, A Strydom ( BMSA) GoogleMaps . 1♀ idem but 21–28.iii.1977 ( BMSA) GoogleMaps . 1♀ Winburg [ca. 28°31′S 27°01′E], v.[19]07, H Fry ( TMSA) GoogleMaps . 6♂, 4♀ Vrede, Beginsel 1284 [farm], Vrede , [ca. 27°26′S 28°44′E], 9–15.ii.1979, A Strydom ( BMSA) GoogleMaps . 1♀ Harrismith, Greenlands 1245 [farm], 28°16′S 28°59′E, 17–17.xii.1984, A van Rensburg ( BMSA) GoogleMaps . 4♂, 1♀ Harrismith, Kerkenberg , [28°30′S 29°08′E], 1–12.ii.1977, GW & MC Ferreira, A Strydom ( BMSA) GoogleMaps . 38♂, 30♀ 126 spec. unsexed Ladybrand, Nova 667 [farm], [29°07′S 27°22′E], 1–12.ii.1977, GW & MC Ferreira, A Strydom ( BMSA) GoogleMaps . 1♂, 1♀ idem but 19–22.i.1976, GW Ferreira & Ee ( BMSA) GoogleMaps . 1♂ idem but 15– 26.v.1978, GW Ferreira & A Strydom ( BMSA) GoogleMaps . 1♂, 3♀ Mowbray 287 [farm], near Ladybrand, SE 2927 Ab , 18– 29.ix.1978, Museum staff ( BMSA) . 4♂, 6♀ Groenkloof 294 [farm], near Ladybrand, SE 2927 Ab , 1–12.ii.1977, GW & MC Ferreira ( BMSA) . 1♂, 1♀ idem but 18–29.ix.1978, Museum staff ( BMSA) . 1♂, 1♀ Winnie Mandela, Florisbad 686 [farm, research station] [28°46′S 26°04′E], i.1984, Entomology Dept. ( BMSA) GoogleMaps . 1♀ idem but xii.1984 ( BMSA) GoogleMaps . 1♀ idem but iv.1985 ( BMSA) GoogleMaps . 2♂, 1♀ idem but ix.1985 ( BMSA) GoogleMaps . 2♀ idem but x.1985 ( BMSA) GoogleMaps . 2 spec. unsexed idem but 9–12.xii.1984, H & A Howden ( CMNC) GoogleMaps . 5♂, 6♀ Bloemfontein, Glen [farm, agricultural college], 28°56′S 26°20′E, 18.x.1983, Van Rensburg & Earlé ( BMSA) GoogleMaps . 2♂, 3♀ idem but 22–30.iii.1977, A Strydom ( BMSA) GoogleMaps . 4♂, 4♀ idem but 5.iv.1978 ( BMSA) GoogleMaps . 2 spec. unsexed Bloemfontein , [ca. 29°07′S 26°13′E], 15.ii–14.iii.1976, Museum staff ( BMSA) GoogleMaps . 1♂, 1♀ Bloemfontein, Free State National Botanical Garden , [ca. 29°03′S 26°13′E], ii.2006, Museum staff ( BMSA) GoogleMaps . 2♂ Bloemfontein, Monument 2206 [farm], SE 2926 Ac , 7.xii.1976, A Strydom ( BMSA) . 1♂ idem but 17–18.viii.1983 ( BMSA) . 4♂, 5♀ Bloemfontein, Merino 14 [farm], [ca. 28°52′S 26°12′E], 29.xi– 3.xii.1976, A Strydom ( BMSA) GoogleMaps . 1♀ Bloemfontein, The Willows 5837 [farm], 29°14′S 26°05′E, 8.ix.1983, Van Rensburg & Earlé ( BMSA) GoogleMaps . 1♂, 1♀ Fauresmith, Zuurfontein 92 [farm], [ca. 29°55′S 25°24′E], 19–22.i.1982, JH van Wyk ( BMSA) GoogleMaps . 1♂, 1♀ Philippolis, Allemans Drift 37 [farm], [ca. 30°32′S 25°20′E], 23–29.x.1978, A Strydom ( BMSA) GoogleMaps .

NHMB

Natural History Museum Bucharest

TMSA

Transvaal Museum

RBINS

Royal Belgian Institute of Natural Sciences

MNHN

Museum National d'Histoire Naturelle

HNHM

Hungarian Natural History Museum (Termeszettudomanyi Muzeum)

SAMC

Iziko Museums of Cape Town

SANC

Agricultural Research Council-Plant Protection Research Institute

RMCA

Royal Museum for Central Africa

BMSA

National Museum Bloemfontein

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Trogidae

Genus

Phoberus

Loc

Phoberus instabilis ( Haaf, 1953 )

Strümpher, Werner P., Huchet, Jean-Bernard & Costa-Silva, Vinícius Da 2025
2025
Loc

Trox instabilis Haaf, 1953: 331

Muvengwi, J. & Chikorowondo, G. & Mbiba, M. & Gandiwa, E. 2018: 8488
Zidek, J. 2017: 102
Zidek, J. 2013: 11
Louw, S. 1987: 421
Scholtz, C. H. 1982: 7
Scholtz, C. H. 1980: 89
Scholtz, C. H. 1979: 193
Scholtz, C. H. 1978: 83
Haaf, E. 1959: 478
Haaf, E. 1953: 331
1953
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