Namaqualand

Macroderes namakwanus Frolov et Scholtz

Macroderes namakwanus Frolov et Scholtz, habitus

Macroderes namakwanus is very similar to M. endroedyi but can be separated from it in having the base of the pronotum with denser, regular punctures and without distinct tubercles in-between, elytral intervals less shagreened, without distinct shiny tubercles, and less curved basal part of internal sac of aedeagus.

Macroderes namakwanus is distributed mostly in the Namaqualand with one specimen collected in southern Richtersveld (South Africa).

Macroderes minutus Frolov et Scholtz

Macroderes minutus Frolov et Scholtz, habitus

This species differs from other Macroderes species in its smaller average size (7.0-9.5 mm). It is similar to M. politulus and M. nitidus in body shape and punctuation of pronotum but can be separated from the former species by evenly shiny to slightly opaque, flat elytral intervals and from the latter species in having lateral margins of pronotum not punctate. From both species it also differs in the shape of internal sac sclerite.

Macroderes minutus is known from Western Cape Sandveld and Cederberg Range (South Africa).

Macroderes foveatus Frolov et Scholtz

Macroderes foveatus Frolov et Scholtz, habitus

Macroderes foveatus is similar to M. cornutus sp. n. in having the base of pronotum with very deep triangular concavity, but can be separated from it in having frontal suture without rounded tubercle, irregular, less elongated punctures on sides of pronotum, denser and larger punctures on elytral intervals, internal sac sclerite with small but distinct lateral process, and smaller average size.

Macroderes foveatus is known from a few localities in vicinity of Veldrif (Western Cape Province).

Macroderes endroedyi Frolov et Scholtz

Macroderes endroedyi Frolov et Scholtz, habitus

This species is very similar to M. namakwanus sp. n. but can be separated from it in having base of pronotum with sparser, somewhat irregular punctures, with more or less distinct tubercles in-between, elytral intervals more shagreened, with small shiny tubercles, and more curved basal part of internal sac sclerite. Body length 11.5 mm, width 8.0 mm.

Macroderes endroedyi is known from Western Cape Sandveld area.

Macroderes cornutus Frolov et Scholtz

Macroderes cornutus Frolov et Scholtz, habitus

This species is similar to M. foveatus sp. n. in having the base of pronotum with very deep triangular concavity, but can be separated from it in having a distinct rounded tubercle in the middle of frontal suture, elongated punctures on pronotum, sparser and smaller punctures on elytral intervals, internal sac sclerite without lateral process, and larger average size. Body length 10.8-11.5 mm

Macroderes cornutus is known from coastal area of the Namaqualand, South Africa.

Macroderes arrowi Janssens

Macroderes arrowi Janssens, habitusMacroderes arrowi is similar to M. greeni, M. foveatus, and M. cornutus, in having elytral intervals with punctures with slightly carinate margins, but can be separated from them in having pronotum granular as opposed to being punctate with round punctures in M. greeni and punctate with very elongated punctures in M. foveatus sp.n. From the two later species it also differs in having the pronotum without a concavity on the base. Body length: 9.0-11.5 mm.

Macroderes arrowi is known only from vicinity of Vanrhynsdorp, Western Cape Province, South Africa.