Detailed morphological redescriptions and illustrations are provided for the following type species of six diverse and taxonomically overlapping genera of broad-nosed weevils, traditionally placed in or near the Neotropical tribe Eustylini Lacordaire (Coleoptera: Curculionidae: Entiminae): Compsus argyreus (Linnaeus), Diaprepes abbreviatus (Linnaeus), Eustylus puber (Olivier), Exophthalmus quad...

Mature larva and pupa of Adosomus (s. str.) roridus (Pallas, 1781) (Curculionidae: Lixinae: Cleonini) are described and compared with ten other taxa of Cleonini with known larvae. This weevil is an oligophagous species on the Asteraceae family. From our observations in Slovakia, we found active adults from April to September in dry sunny places within extensively used or fallow vineyards and in...

Dry artificial diet pellets prepared with maize, cassava chips, and amino acid supplements (lysine and methionine) were evaluated for mass culture of Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae), a highly polyphagous pest of many stored grains. Evaluation was done in the laboratory at temperature 26 ± 2 °C, 60-70% RH, 12:12 L:D photoperiod. The artificial diet was compounded from ...

Wildings from exotic tree plantations are a major threat to New Zealand’s native vegetation and landscapes. The insects associated with the reproductive structures of the most significant invasive tree, Pinus contorta, are reviewed with regard to their suitability for biological control. Based on host species and structure specificity and their impact on seed production, Conophthorus ponderosae...

The spermiogenesis of Sitophilus zeamais and Sitophilus oryzae, the maize and the rice weevil, respectively, was studied by light microscopy and scanning and transmission electron microscopy. Sitophilus spp. is the most widespread and destructive primary pest of stored cereals in the world. The spermiogenesis occurs within cysts. There are approximately 256 germ line cells per cyst. Inside each...

A new monotypic genus of Naupactini (Coleoptera: Curculionidae), Obrieniolus del Río is described based on the new species Obrieniolus robustus del Río, endemic to Peru. This genus is easily recognized by the black, denuded and shiny integument, with imbricate microsculpture and the rounded body, with short, cordiform and moderately convex elytra. According to a cladistic analysis based on 69 c...

We evaluated the efficacy of the systemic insecticides dinotefuran, emamectin benzoate, fipronil, and imidacloprid for preventing attacks and brood production of southern pine engraver beetles (Coleoptera: Curculionidae: Scolytinae) and wood borers (Coleoptera: Cerambycidae) on standing, stressed trees and bolt sections of loblolly pine, Pinus taeda L., in eastern Texas. Emamectin benzoate sign...

Detailed morphological and dimensional analysis of the detritus deposited in the galleries of woodboring insects was performed for some of the most common xylophagous insect larvae in timber construction in Spain. The samples studied belong to six species of four common families of borers: Cerambycidae, Anobiidae, Curculionidae and Lyctidae. The samples were provided by Spanish and German compa...

The species of the Italian endemic weevil genus, Solariola Flach, 1908 (Coleoptera: Curculionidae: Entiminae), are revised, the genus is re-diagnosed, re-described and transferred from the tribe Otiorhynchini to Peritelini. Three new species are described: Solariola angelae n. sp. and Solariola pesarinii n. sp. from Sicily, and Solariola fraterna n. sp. from Calabria. Solariola hirtula (A. Sola...

The monotypic genus Curiades Pascoe 1880 (Curculionidae: Entiminae: Naupactini) is redescribed based on the type species C. boisduvali (Boheman 1840), endemic to Río de Janeiro, Brazil. Curiades boisduvali shows a characteristic color pattern and vestiture composed of long erect setae that resembles species of Dasymutilla Ashmead 1899, a genus of Mutillidae (Hymenoptera) whose wingless females ...