Rhyparochromini

Amyot & Serville, 1843

dirt-colored seed bugs

Genus Guides

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Rhyparochromini is a tribe of dirt-colored seed bugs within the Rhyparochromidae, representing the most diverse tribe in its family with over 40 and 360 described . Members are characterized cytogenetically by the presence of a pair of microchromosomes (m-) and an XY/XX system. The tribe exhibits highest diversity in the Afrotropical, Palearctic, and Oriental biogeographic regions.

Xanthochilus saturnius by (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda. Used under a CC-BY license.Rhyparochromini by (c) Kostas Zontanos, some rights reserved (CC BY), uploaded by Kostas Zontanos. Used under a CC-BY license.Rhyparochromini by (c) portioid, some rights reserved (CC BY), uploaded by portioid. Used under a CC-BY license.

Pronunciation

How to pronounce Rhyparochromini: //ˌraɪpəroʊˈkroʊmɪnaɪ//

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Identification

Cytogenetic analysis reveals diagnostic features including a pair of microchromosomes and XY/XX system, with numbers varying among (e.g., 2n=14 and 2n=12 observed in Dieuches species). Metaphase plate arrangements may be species-specific; some species show peripheral placement of , sex chromosomes, and m-chromosomes at metaphase II.

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Distribution

Most diverse in the Afrotropical, Palearctic, and Oriental regions.

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Cytogenetic characteristics

The tribe is characterized by a pair of microchromosomes (m-) and an XY/XX (male/female) determining system. within the Dieuches have been documented with chromosome numbers of 2n=14=10A+2m+XY and 2n=12=8A+2m+XY, each possessing one pair of distinctly large .

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