Population Structure of Two Flightless Weevils of Genus Scepticus Roelofs (Coleoptera, Curculionidae) with Seashore Habitat in Japan

Taxonomic use of endophallus in weevils of the genus sitona (coleoptera : curculionidae)

Towards a phylogenetic system of derelomine flower weevils (Coleoptera: Curculionidae)

A revised phylogenetic classification for derelomine flower weevils (Coleoptera: Curculionidae: Curculioninae: Derelomini Lacordaire) is proposed, based on a cladistic analysis of 115 outgroup and ingroup taxa and 155 primarily morphological characters. The single most-parsimonious cladogram (length 1⁄4 271, consistency index 1⁄4 65, retention index 1⁄4 95) indicates that several genera must be...

Pollination of Anthurium (Araceae) by derelomine flower weevils (Coleoptera: Curculionidae).

Cyclanthura flower weevils (Coleoptera: Curculionidae: Derelomini) are identified for the first time as pollinators of multiple species of Anthurium (Araceae) in Costa Rica. The weevils are present on the inflorescences in small numbers during the pistillate and staminate phase of anthesis, and consume plant tissues and pollen. The individuals of one species of Cyclanthura can visit several Ant...

Karyotypes and chromosome rearrangements in two tribes of weevils (Coleoptera, Curculionidae: Sciaphilini and Braehydrini).

A description of karyotypes in two tribes of weevils, Sciaphilini and Brachyderini, was carried out with a discussion on the main trends of chromosomal evolution occurring in these groups. Some important cytological characteristics, such as chromosome morphology, sex determination type, pattern of male meiosis, B chromosome occurrence, as well as C-heterochromatin, NOR localization, and fluoroc...

Flea weevils of the genus Megorchestes Kojima (Coleoptera, Curculionidae, Curculioninae, Rhamphini), with description of a second species from India.

A second species of Megorchestes Kojima, M. deccanensis sp. nov., is described from India and a key to the two species is provided.