Colophon izardi  

Barnard, 1929 

Life > Eukaryotes > Opisthokonta > Metazoa (animals) > Bilateria > Ecdysozoa > Panarthropoda > Tritocerebra > Arthopoda > Mandibulata > Atelocerata > Panhexapoda > Hexapoda > Insecta (insects) > Dicondyla > Pterygota > Metapterygota > Neoptera > Eumetabola > Holometabola > Coleoptera (beetles) > Polyphaga > Superfamily: Scarabaeoidea > Family: Lucanidae > Subfamily: Lucaninaae > Genus: Colophon

Found in the Lemoenshoek, Grootberg, Langeberg Range. Little is known about its biology but larvae probably feed on plant roots such as Restioniaceae. Male 22-25mm, female 20-21mm. Named after Alfred David Izard, a mountaineer friend of Dr K.H. Barnard who named this species.

Colophon izardi, male. Dorsal view of head and thorax. [image M. Cochrane, Iziko ]

Colophon izardi, male. Ventral view of head and thorax. [image M. Cochrane, Iziko ]

Colophon izardi. Male genitalia. Aedeagus (penis and parameres). [image M. Cochrane, Iziko ]

Colophon izardi. Male genitalia. Aedeagus (penis and parameres). [image M. Cochrane, Iziko ]

Apomorphic species. Aedeagus (penis and parameres) are  distinctly asymmetrical, the right paramere is strongly dilated forming a hook on the inner margin with the anal sternite correspondingly asymmetrical on the posterior margin; penis well sclerotised (cuticle hardened); anterior (front) margin of the clypeus raised above the level of the labrum at the suture (join). Compare genitalia of species groups.

This group includes Colophon barnardi, Colophon berrisfordi, Colophon cassoni, Colophon endroedyi, Colophon izardi, Colophon montisatris, Colophon neli, Colophon oweni, Colophon primosi, Colophon thunbergi, Colophon westwoodi and Colophon whitei.  (See Plesiopmorphic species)

Publications

  • BARNARD, K. H. 1929. A study of the genus Colophon Gray. Transactions of the Royal Society of South Africa 18: 163 182. 

Colophon home

  Images and text by Margie Cochrane


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