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Pachnobium dreuxi, n. g., n. sp discovered as a fossil and still living in the Crozet Islands (Coleoptera: Curculionidae: Ectemnorrhininae)

Chapelin-Viscardi, Jean-David; Voisin, Jean-Francois; Ponel, Philippe and Van der Putten, Nathalie LU (2010) In Annales de la Société Entomologique de France 46(1-2). p.125-131
Abstract
Pachnobium dreuxi, n. g., n. sp. discovered as a fossil and still living in the Crozet Islands (Coleoptera: Curculionidae: Ectemnorrhininae). Pachnobium dreuxi, a new genus and species of Ectemnorrhininae weevil, was first discovered as a fossil in a Holocene sedimentary sequence at lie de la Possession (Crozet Islands, southern Indian Ocean). Two modern specimens were subsequently found in the collections of the Museum national d'Histoire naturelle (Paris). Pachnobium dreuxi n. g., n. sp. differs readily from all other species of the subfamily by its rostrum deeply emarginated at the apex, massive head, reduced sclerotinization, straight and flattened foretibiae, etc. Its biology and ecology are almost completely unknown, although some... (More)
Pachnobium dreuxi, n. g., n. sp. discovered as a fossil and still living in the Crozet Islands (Coleoptera: Curculionidae: Ectemnorrhininae). Pachnobium dreuxi, a new genus and species of Ectemnorrhininae weevil, was first discovered as a fossil in a Holocene sedimentary sequence at lie de la Possession (Crozet Islands, southern Indian Ocean). Two modern specimens were subsequently found in the collections of the Museum national d'Histoire naturelle (Paris). Pachnobium dreuxi n. g., n. sp. differs readily from all other species of the subfamily by its rostrum deeply emarginated at the apex, massive head, reduced sclerotinization, straight and flattened foretibiae, etc. Its biology and ecology are almost completely unknown, although some aspects of its morphology such as its reduced sclerotinization and relatively small eyes argue for a hidden life among vegetal debris or in cavities of the ground like petrel nests. The paleoenvironmental reconstruction suggests that this species lives in densely vegetated habitats. The two modern specimens were collected in two widely separated islands, Ile de l'Est and Ile des Pingouins, but the lack of modern captures on Possession Island raises the question of its continued presence there. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
palaeoecology, Holocene, Crozet Islands, Possession Island, Weevil
in
Annales de la Société Entomologique de France
volume
46
issue
1-2
pages
125 - 131
publisher
Société entomologique de France
external identifiers
  • wos:000279499500012
ISSN
0037-9271
language
French
LU publication?
no
id
acc1d622-c859-4951-9ca7-5aa5c0c59ca8 (old id 1969748)
date added to LUP
2011-05-26 07:32:27
date last changed
2018-05-29 09:41:17
@article{acc1d622-c859-4951-9ca7-5aa5c0c59ca8,
  abstract     = {Pachnobium dreuxi, n. g., n. sp. discovered as a fossil and still living in the Crozet Islands (Coleoptera: Curculionidae: Ectemnorrhininae). Pachnobium dreuxi, a new genus and species of Ectemnorrhininae weevil, was first discovered as a fossil in a Holocene sedimentary sequence at lie de la Possession (Crozet Islands, southern Indian Ocean). Two modern specimens were subsequently found in the collections of the Museum national d'Histoire naturelle (Paris). Pachnobium dreuxi n. g., n. sp. differs readily from all other species of the subfamily by its rostrum deeply emarginated at the apex, massive head, reduced sclerotinization, straight and flattened foretibiae, etc. Its biology and ecology are almost completely unknown, although some aspects of its morphology such as its reduced sclerotinization and relatively small eyes argue for a hidden life among vegetal debris or in cavities of the ground like petrel nests. The paleoenvironmental reconstruction suggests that this species lives in densely vegetated habitats. The two modern specimens were collected in two widely separated islands, Ile de l'Est and Ile des Pingouins, but the lack of modern captures on Possession Island raises the question of its continued presence there.},
  author       = {Chapelin-Viscardi, Jean-David and Voisin, Jean-Francois and Ponel, Philippe and Van der Putten, Nathalie},
  issn         = {0037-9271},
  keyword      = {palaeoecology,Holocene,Crozet Islands,Possession Island,Weevil},
  language     = {fre},
  number       = {1-2},
  pages        = {125--131},
  publisher    = {Société entomologique de France},
  series       = {Annales de la Société Entomologique de France},
  title        = {Pachnobium dreuxi, n. g., n. sp discovered as a fossil and still living in the Crozet Islands (Coleoptera: Curculionidae: Ectemnorrhininae)},
  volume       = {46},
  year         = {2010},
}