Cicindela hirticollis


 
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Sacramento Valley Hairy-necked Tiger Beetle
(Cicindela hirticollis abrupta)

 
syn. -

 
distribution:

USA: Sacramento Valley / California

 
local name:

Sacramento Valley Hairy-necked Tiger Beetle (English)

 
size: (?)

extinction date: ca. 1990

 
This subspecies of the Hairy-necked Tiger Beetle is historicaly known from only five sites in the Sacramento Valley in California. There it lived among open, sandy riverbanks.

It can be assumed, that its habitat was destroyed by the building of river walls.

 
left:

Hairy-necked Tiger Beetle (Cicindela hirticollis), unassigned subspecies, alteration of colour after hatching from pupa


Depiction from 'Color and color-pattern mechanism of tiger beetles, with twenty-nine black and three colored plates, by Victor E. Shelford. Urbana, Ill., University of Illinois, 1917'

http://www.biodiversitylibrary.org

 
References:

- C. Barry Knisley; Michael S. Fenster: Apparent Extinction of the Tiger Beetle, Cicindela hirticollis abrupta (Coleoptera: Carabidae: Cicindelinae). The Coleopterists Bulletin 59(4):451-458. 2005
- M. S. Fenster; C. B. Knisley: Impact of dams on point bar habitat: a case for the extirpation of the Sacramento Valley Tiger Beetle, C. hirticollis abrupta. River Research and Applications 22(8): 881-904. 2006