Macroderes cederbergensis Abdalla & Deschodt

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: 48-49

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/9FED0DC0-CFF6-424C-A3AE-092656B24972

taxon LSID

lsid:zoobank.org:act:9FED0DC0-CFF6-424C-A3AE-092656B24972

treatment provided by

Plazi

scientific name

Macroderes cederbergensis Abdalla & Deschodt
status

new species

Macroderes cederbergensis Abdalla & Deschodt  , new species

( Figs. 20View FIGURES 19–23, 29View FIGURES 24–39, 76View FIGURES 76–81, 83View FIGURES 82–87, 94View FIGURES 94–99)

urn:lsid:zoobank.org:act:9FED0DC0-CFF6-424C-A3AE-092656

Macroderes minutus Frolov & Scholtz, 2005: 385  (partim).

Type locality. Cederberg Mts, Jeep Track, 32°26'S 19°13'E.

Type material. Holotype, ♂ ( TMSA): “ Cederberg Mts / Jeep Track / 32° 26' S 19° 13' E / 1.IX.1981 / groundtraps with faeces and meat bait / 63 days / Endrödy – Younga leg [printed] // HOLOTYPE / Macroderes cederbergensis  / Abdalla & Deschodt / 2018 [red label, printed]”GoogleMaps  . Paratypes: 2 ♀♀ ( TMSA): “ Cederberg Mts / Jeep Track / 32° 26' S 19° 13' E / 1.IX.1981 / groundtraps with faeces and meat bait / 63 days / Endrody – Younga leg [printed] // PARATYPE / Macroderes cederbergensis  / Abdalla & Deschodt / 2018 [red label, printed]”GoogleMaps  ; 1 ♂: “ Cederberg Mts. / Jeep Track / 32° 23' S 19° 24' E / 1.IX.1981 / groundtrap with meat bait / 63 days / Endrödy— Younga leg [printed] // PARATYPE / Macroderes cederbergensis  / Abdalla & Deschodt / 2018 [red label, printed]”GoogleMaps  ; 1 ♂ and 1 ♀ ( TMSA): “ Cederberg Mts / Jeep Track / 32° 24' S 19° 10' E / 1.IX.1981 / Redunca rufo  [name could not be traced, probably Pelea capreolus (Forster, 1790)  or Grey Rhebok] dung / Endrödy—Younga leg [printed] // PARATYPE / Macroderes cederbergensis  / Abdalla & Deschodt / 2018 [red label, printed]”GoogleMaps  ; 2 ♂♂ ( TMSA) with the same data but collected from groundtraps with meat and feaces bait set up for 63 daysGoogleMaps  .

Holotype description. Holotype, ♂ ( Fig. 20View FIGURES 19–23). Body length 9.4 mm, width 6.8 mm.

Head. Genae right–angled. Frontal suture visible, not raised, strongly curved, no tubercle. Genal sutures barely discernible. Dorsal surface of clypeus behind frontal suture punctate punctures small, irregular and separated by 1– 3 puncture diameters, area between punctures slightly rugose proximally of frontal suture. Dorsal part of eyes clearly visible.

Pronotum. Slightly convex. Anterior lateral angles almost right–angled, posterior lateral angles fairly rounded. No excavation antero-laterally. Lateral border not punctate. Dorsal surface smooth, with regular punctures separated by 0.5–1.5 puncture diameters ( Figs. 76View FIGURES 76–81, 83View FIGURES 82–87).

Elytra. Elytral interstriae 1–8 flat, shagreened, irregularly punctate, punctures irregularly sized, separated by 0.5–3 puncture diameters, margins of punctures not carinate ( Fig. 94View FIGURES 94–99). Striae punctate with punctures separated by 2–4 puncture diameters. Sutural interstria narrow with single row of irregularly spaced punctures. Elytral stria 9 2/ 3 the length of elytron; interstria 10 about 5 times narrower than interstria 9 in the middle of elytron.

Aedeagus. The sclerite of internal sac is curved, with small lateral process apically ( Fig. 29View FIGURES 24–39).

Size range. Males length: 7.5–9.0 mm, width: 5.5–6.8 mm; females length: 7.8–9.5 mm, width: 6.0– 6.3 mm.

Female. Female differs from male by having elytral interstriae 1–8 less shagreened; otherwise variation between male and female is very slight.

Etymology. The specific epithet is derived from the Cederberg Range where the species occurs.

Differential diagnosis. It is close to M. soleiana  new species but can be separated by having flatter elytral intervals ( Figs. 20View FIGURES 19–23, 94View FIGURES 94–99) and the striae being slightly arcuate and not straight as in M. soleiana  new species.

Habitat and distribution. This species was collected on the highest plateau in the Cederberg range ( Fig. 2), above 1100 m a.s.l. (metres above sea level), characterised by clay soils and classified as Northern Inland Shale Band Vegetation ( Mucina & Rutherford 2006). Macroderes soleiana  new species occurs below 1100 m a.s.l.

Remark. See M. minutus  for an explanation of the origin of the type series.

TMSA

Transvaal Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Scarabaeidae

Genus

Macroderes

Loc

Macroderes cederbergensis Abdalla & Deschodt

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