A chromosomal analysis of three species of Timarcha (Coleoptera, Chrysomelidae, Chrysomelinae)

@article{Petitpierre2016ACA,
  title={A chromosomal analysis of three species of Timarcha (Coleoptera, Chrysomelidae, Chrysomelinae)},
  author={Eduard Petitpierre},
  journal={Comparative Cytogenetics},
  year={2016},
  volume={10},
  pages={27 - 32}
}
  • E. Petitpierre
  • Published 22 January 2016
  • Medicine, Biology
  • Comparative Cytogenetics
Abstract The karyotypes of three species of Timarcha Latreille, 1829 have been analysed. Timarcha (Metallotimarcha) metallica (Laicharting, 1781), has 18 + Xyp male meioformula and 2n = 38 chromosomes, similar to those found in the two species of subgenus Americanotimarcha Jolivet, 1948, in agreement with morphological and molecular phylogenetic grounds. Timarcha (Timarcha) carmelenae Petitpierre, 2013 displays 9 + Xyp and 2n = 20 chromosomes as in morphologically related Andalusian species… 
Endophallus structure: a promising tool for cryptic species identification in Timarcha Samouelle, 1819 (Coleoptera: Chrysomelidae: Chrysomelinae).
TLDR
According to the subtle differences of habitus found between many species of Timarcha their internal sacs of male genitalia have shown a remarkable variation, this trait can be used for species diagnosis and also for establishing species groups of close relatedness in agreement mainly with genetic analyses.
The Structure of the Endophallus Is a New Promising Feature and a Key to Study of Taxonomy of the Subgenus Metallotimarcha of the Genus Timarcha (Coleoptera, Chrysomelidae) in the Caucasus
TLDR
Examination of both external characters and endophallus structure in the specimens from the Caucasus revealed that Caucasian Timarcha hummelii is a separate species, which differs from European members of the subgenus (T. gibba) by the internal structure of male aedeagus, namely, manubrium of the endphallus.

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TLDR
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This work is included in the framework of projects REN2003-03667 from Spanish Ministry of Science and Technology to EP and JGZ and EC Marie Curie ERG Programme Grant (Contract no.
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Coleoptera:
Im Jahre 1901 waren 22 selbstständig erschienene Werke mit ganz oder theilweis coleopterologischem Inhalt zu verzeichnen, also 82 weniger als 1900. In IGO Zeitschi'iften, von denen nur 39
Plantes-hôtes connues des Timarcha Latreille [Col. Chrysomelidae] . Quelques considérations sur les raisons possibles du trophisme sélectif
Se conocen con exactitud las plantas huesped, de 47 especies y subespecies de Timarcha sobre un total de 180 formas descritas, lo cual deja todavia un amplio margen a la ignorancia. Las
Chrysomelidae (Coleoptera) de las sierras del Altiplano de Granada (Granada, Andalucía)
espanolSe indica la lista de las 111 especies de crisomelidos registradas hasta ahora en tres sierras de la comarca del Altiplano de Granada (Sierra de La Sagra, Sierra de Guillimona y Sierra Seca),
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