Macroderes minutus Frolov & Scholtz, 2005

Abdalla, Ishtiag H., Deschodt, Christian M., Scholtz, Clarke H. & Sole, Catherine L., 2018, An update to the taxonomy of the genus Macroderes Westwood 1842 (Coleoptera: Scarabaeidae: Scarabaeinae) with descriptions of new species from South Africa, Zootaxa 4504 (1), pp. 41-75: 60-62

publication ID

https://doi.org/10.11646/zootaxa.4504.1.3

publication LSID

lsid:zoobank.org:pub:52BA28B6-4280-4BD0-8B38-C794F04E4A66

persistent identifier

http://treatment.plazi.org/id/B276DC1E-FFB1-FFF3-FF0D-FB60FD9E0420

treatment provided by

Plazi

scientific name

Macroderes minutus Frolov & Scholtz, 2005
status

 

Macroderes minutus Frolov & Scholtz, 2005 

( Figs. 11View FIGURES 11–14, 53View FIGURES 52–57, 90View FIGURES 88–93)

Macroderes minutus Frolov & Scholtz, 2005: 385  .

Type locality. RSA, Western Cape Prov, 15 km SW of Lutzville.

Type material examined. Holotype, ♂ ( TMSA): “ RSA / Western Cape Prov / 15 km SW of Lutzville / A. Frolov & C. Deschodt leg [printed] // AF–0046 (26) / 6–1 0. IX.2003 / S 31° 40' 21.00 E 018° 13' 50.10 [printed] // HOLOTYPUS / Macroderes minutus  / Frolov & Scholtz / 2003 [red label, printed]”GoogleMaps  . Paratypes: 2 ♂♂ ( UPSA, TMSA) with the same data as holotypeGoogleMaps  ; 1 ♂ ( TMSA): “ Zandkraal farm / 31° 42' S 18° 46' E / 12.IX.1987 / coarsesandy flat / Endrödy—Younga leg [printed] // PARATYPUS / Macroderes minutus  / Frolov & Scholtz / 2003 [red label, printed]”GoogleMaps  ; 1 ♂ ( TMSA): “ Namaqualand / Nuwerust farm / 31° 04' S 18° 17' E / 27.VIII.1979 / singled on red sand / Endrödy—Younga leg [printed] // PARATYPUS / Macroderes minutus  / Frolov & Scholtz / 2003 [red label, printed]”GoogleMaps  ; 2 ♀♀ ( UPSA): “ 5 km W of Rietpoort / 30° 58' S 17° 59' E / 3–11.IX.2003 / Frolov & Deschodt leg [printed] // PARATYPUS / Macroderes minutus  / Frolov & Scholtz / 2003 [red label, printed]”GoogleMaps  ; 1 ♀ ( TMSA): “ 10 km N of Bitterfontein / 30° 57' S 18° 13' E / 11.IX.1985 / from sand pit / Endrödy–Younga leg [printed] // PARATYPUS / Macroderes minutus  / Frolov & Scholtz / 2003 [red label, printed]”GoogleMaps  ; 1 ♀ ( UPSA): “ 25 km N of Vanrhynsdorp / 31° 23' S 18° 38' E / 5–11.IX.2003 / Frolov & Deschodt leg [printed] // PARATYPUS / Macroderes minutus  / Frolov & Scholtz / 2003 [red label, printed]”GoogleMaps  .

Size range. Males length: 7.0– 8.9 mm, width: 5.7–6.3 mm; females length: 8.5–8.9 mm, width: 5.0– 5.9 mm.

Differential diagnosis. This species can be separated from others in the group by having ovoid pronotal punctures which are relatively close together (between 1 and 1.5 puncture diameters along the minor axis) and the seta associated with each puncture being short.

Habitat and distribution. This species occurs on the Namaqualand Strandveld vegetation type ( Fig. 2). Specimens were collected in habitats featuring deep sand (Deschodt, personal observation).

Remarks. Frolov & Scholtz (2005) tentatively lumped specimens from extreme localities and vegetation types, such as Lutzville (Namaqualand Strandveld), Knersvlakte (Central Knersvlakte Vygieveld) and the top of the Cederberg range (Cederberg Sandstone Fynbos) together. Electron micrographs of specimens in the type series of M. minutus  from different localities and further M. minutus  material collected subsequent to the description of M. minutus  were compared. It seems that the complex has been subjected to microhabitat speciation (speciation where species are still morphologically similar and geographical neighbour, but separated from each other by occupying different habitat types such as soil and/or vegetation type). Here we split the complex into three independent species ( M. minutus  , M. cederbergensis  new species and M. leipoldti  new species).

The holotype of M. minutus  is from near Lutzville [31°33'S 18°20'E] and thus, specimens from there should be considered to be true M. minutus  . Since the description of M. minutus in Frolov & Scholtz (2005)  is based on the holotype, that species description is still applicable and need no changes, only the amended type series and short notes on its distribution are given here.

TMSA

Transvaal Museum

UPSA

University of Pretoria

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Scarabaeidae

Genus

Macroderes

Loc

Macroderes minutus Frolov & Scholtz, 2005

Abdalla, Ishtiag H., Deschodt, Christian M., Scholtz, Clarke H. & Sole, Catherine L. 2018
2018
Loc

Macroderes minutus Frolov & Scholtz, 2005 : 385

Frolov, A. V. & Scholtz, C. H. 2005: 385