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

  title={A chromosomal analysis of three species of Timarcha (Coleoptera, Chrysomelidae, Chrysomelinae)},
  author={Eduard Petitpierre},
  journal={Comparative Cytogenetics},
  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).
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
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.


Cytogenetics, cytotaxonomy and chromosomal evolution of Chrysomelinae revisited (Coleoptera, Chrysomelidae) *
A significant negative correlation between the haploid numbers and the asymmetry in size of karyotypes has been found from a large sample of 63 checked species of ten different genera, therefore the increases in haploid number are generally associated with a higher karyotype symmetry.
Phylogenetic position of the AmericanTimarcha Latr. (Coleoptera, Chrysomelidae) based on chromosomal data
The chromosomal analysis ofT. intricata Hald. has shown a diploid complement of 44 chromosomes, the highest number found inTimarcha and clearly different from those of the taxa previously studied.
A chromosomal analysis of 15 species of Gymnopleurini, Scarabaeini and Coprini (Coleoptera: Scarabaeidae)
The present paper reports on the remaining Scarabaeidae (Gymnopleurus geoffroyi Illiger, Copris lunaris (Linnaeus) and Onitis belial Fabricius) included in that research, with additional material collected by R. B. Angus and D. J. Mann.
Timarcha Latreille: a strange beetle and a living fossil.
A very archaic genus, probably originating in early Mesozoic, with around 100 taxa, and 50 subspecies, and Mutations remain very common in the group and new species are possibly still emerging.
The evolutionary history of the genus Timarcha (Coleoptera, Chrysomelidae) inferred from mitochondrial COII gene and partial 16S rDNA sequences.
Relation between phylogeny and host-plant use indicates widening of trophic regime as a derived character in Timarcha, and no clear monophyletic grouping of Timarchostoma and TimarchA s.
The evolutionary origin of a novel karyotype in Timarcha (Coleoptera, Chrysomelidae) and general trends of chromosome evolution in the genus
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.
Adult and Larval Plant Range and Preference in Timarcha lugens (Coleoptera: Chrysomelidae): Strict Monophagy on an Atypical Host
It is suggested that T. lugens has evolved the ability to attack an atypical host, similar to other Old World Timarcha, which are adapted to feed on Plantaginaceae and Rubiaceae.
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),