From Wikipedia, the free encyclopedia

Abacetus pumilus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Carabidae
Genus: Abacetus
Species:
A. pumilus
Binomial name
Abacetus pumilus
( Boheman, 1848)
Synonyms

Abacetus pumilus is a species of ground beetle in the subfamily Pterostichinae. [1] It was described by Boheman in 1848. [1] Abacetus pumilus is a small, but distinctive, beetle with red legs and antennae, and a green tinge on its wings. [2] Very little is known about Abacetus pumilus habitat, however it is found throughout the arid deserts and semi-arid steppes of southern Africa. [3]

Taxonomy and Phylogeny

The species name pumilus is from Latin meaning dwarf, referencing the beetles small size. [4] Abacetus pumilus is closely related to Abacetus pygmaeus. [3]

Species key

Following the species key developed by L. Peringuey Abacetus pumilus can be identified by:

GROUP. The prothorax is strongly heart shaped and the frontal groove (sulci) is deep and curved like a bow. [5]

Sub-group. Species have a metallic sheen on the upper-side. [5]
Abacus pumilus. The upper surface of the prothorax ( pronotum) is broader than long. [5]

Description

Size

L. Peringuey described the adult beetles as 6mm in length and 2mm in width. [2]

Colour and Markings

The head and prothorax of the beetle are black, wings ( elytra) have a dark green tinge, legs and the three basal joints of the antennae are red. [2]

Thorax

The prothorax rounded on the side, moderately widened in the middle and suddenly narrowed (but not truncated) at a very short distance from the base. [2] Rear angle sharp and projecting, deeply marked (punctured) at base. [2]

Wings

Wings ( elytra) are not broader than the prothorax, however are elongated and a little depressed, marked with fine parallel lines which are very finely scratched (aciculate). [2] Intervals between the parallel lines are smooth. [2]

Distribution and Habitat

Abacetus pumilus has been mainly collected from Namibia [3] with a single collection from near Kwekwe in Zimbabwe. [5] There have also been references to Abacetus pumilus being found in Southern Angola [3] and from the Transkei province in South Africa. [6] However no specific location details are available.

Based on the collection records, Abacetus pumilus is predominately found in both hot and cold arid deserts ( BWh, BWk), and hot and cold arid steppes ( BSh, BSk). [7]

Abacetus pumilus distribution in Southern Africa
Abacetus pumilus distribution in Southern Africa

References

  1. ^ a b "Abacetus pumilus (Boheman, 1848)". Catalogue of Life. Retrieved 2023-04-09.
  2. ^ a b c d e f g L. Peringuey (1896). "Descriptive Catalogue". The Transactions of the South African Philosophical Society. 7: 550–551.
  3. ^ a b c d H. Kuntzen (1919). "Spezieller Teil". Die Carabidenfauna Deutsch-Sudwestafrikas: 152.
  4. ^ Whitaker, William (1993–2007). "William Whitaker's Words". Retrieved May 21, 2020.
  5. ^ a b c d L. Peringuey (1925–1926). "South African Coleopterous Faunda". Annals of the South African Museum. 23: 618–625.
  6. ^ J. A. Wahlbery and C. H. Boheman (1838–1845). "Coleoptera". Insecta Caffraria. 1: 185.
  7. ^ M. C. Peel, B. L. Finlayson and T. A. McMahon (2007). "Updated world map of the Köppen-Geiger climate classification". Hydrology and Earth System Sciences. 11 (5): 1633–1644. doi: 10.5194/hess-11-1633-2007.
From Wikipedia, the free encyclopedia

Abacetus pumilus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Carabidae
Genus: Abacetus
Species:
A. pumilus
Binomial name
Abacetus pumilus
( Boheman, 1848)
Synonyms

Abacetus pumilus is a species of ground beetle in the subfamily Pterostichinae. [1] It was described by Boheman in 1848. [1] Abacetus pumilus is a small, but distinctive, beetle with red legs and antennae, and a green tinge on its wings. [2] Very little is known about Abacetus pumilus habitat, however it is found throughout the arid deserts and semi-arid steppes of southern Africa. [3]

Taxonomy and Phylogeny

The species name pumilus is from Latin meaning dwarf, referencing the beetles small size. [4] Abacetus pumilus is closely related to Abacetus pygmaeus. [3]

Species key

Following the species key developed by L. Peringuey Abacetus pumilus can be identified by:

GROUP. The prothorax is strongly heart shaped and the frontal groove (sulci) is deep and curved like a bow. [5]

Sub-group. Species have a metallic sheen on the upper-side. [5]
Abacus pumilus. The upper surface of the prothorax ( pronotum) is broader than long. [5]

Description

Size

L. Peringuey described the adult beetles as 6mm in length and 2mm in width. [2]

Colour and Markings

The head and prothorax of the beetle are black, wings ( elytra) have a dark green tinge, legs and the three basal joints of the antennae are red. [2]

Thorax

The prothorax rounded on the side, moderately widened in the middle and suddenly narrowed (but not truncated) at a very short distance from the base. [2] Rear angle sharp and projecting, deeply marked (punctured) at base. [2]

Wings

Wings ( elytra) are not broader than the prothorax, however are elongated and a little depressed, marked with fine parallel lines which are very finely scratched (aciculate). [2] Intervals between the parallel lines are smooth. [2]

Distribution and Habitat

Abacetus pumilus has been mainly collected from Namibia [3] with a single collection from near Kwekwe in Zimbabwe. [5] There have also been references to Abacetus pumilus being found in Southern Angola [3] and from the Transkei province in South Africa. [6] However no specific location details are available.

Based on the collection records, Abacetus pumilus is predominately found in both hot and cold arid deserts ( BWh, BWk), and hot and cold arid steppes ( BSh, BSk). [7]

Abacetus pumilus distribution in Southern Africa
Abacetus pumilus distribution in Southern Africa

References

  1. ^ a b "Abacetus pumilus (Boheman, 1848)". Catalogue of Life. Retrieved 2023-04-09.
  2. ^ a b c d e f g L. Peringuey (1896). "Descriptive Catalogue". The Transactions of the South African Philosophical Society. 7: 550–551.
  3. ^ a b c d H. Kuntzen (1919). "Spezieller Teil". Die Carabidenfauna Deutsch-Sudwestafrikas: 152.
  4. ^ Whitaker, William (1993–2007). "William Whitaker's Words". Retrieved May 21, 2020.
  5. ^ a b c d L. Peringuey (1925–1926). "South African Coleopterous Faunda". Annals of the South African Museum. 23: 618–625.
  6. ^ J. A. Wahlbery and C. H. Boheman (1838–1845). "Coleoptera". Insecta Caffraria. 1: 185.
  7. ^ M. C. Peel, B. L. Finlayson and T. A. McMahon (2007). "Updated world map of the Köppen-Geiger climate classification". Hydrology and Earth System Sciences. 11 (5): 1633–1644. doi: 10.5194/hess-11-1633-2007.

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