Revision of the genus Digonis (Lepidoptera, Geometridae): new species and new genera.

The taxonomic study of the Chilean Ennomini genera is still in its early stages. Within this group, the maculation patterns of Chilean species are uniform and often inadequate for distinguishing between many species, compounded by a lack of taxonomic revisions focused on the genera within the tribe. In this study, the genus Butler, 1882, is reviewed and redefined based on characteristics of wing patterns and genitalia.

The Trichopterygini (Lepidoptera, Geometridae) of Austral South America: description of new species from Chile.

Four new species belonging to the genera Butler, Parra, Parra, and Parra from south-central Chile are described. The species are Ramos-González & Parra, , Ramos-González & Parra, , Ramos-González & Parra, , and Ramos-González & Parra, The genus Warren is reassigned to tribe Trichopterygini and Ramos-González & Parra, is described. Comparative diagnosis for all new species are provided, and illustrations of genitalia and the wing venation of the males for all new described species are given.

Morphology of the immature stages and notes on the natural history of the little-known plume moth Stenoptilodes juanfernandicus Gielis (Lepidoptera: Pterophoridae).

Stenoptilodes juanfernandicus Gielis, 1991 (Lepidoptera: Pterophoridae) was described from the Juan Fernandez Islands, Chile; it was subsequently recorded from the Galápagos Islands and mainland Ecuador. Its larva and pupa are described and illustrated for the first time with the aid of light and scanning electron microscopy. Descriptions are based on specimens collected as larvae displaying cryptic coloration feeding on inflorescences of Verbena hispida Ruiz Pav.

Allometric and non-allometric patterns in sexual dimorphism discrimination of wing shape in Ophion intricatus: might two male morphotypes coexist?

Bees and wasps could exhibit shape and size sexual dimorphism, and most of their morphological variation could depend on phenotypic responses due to environmental pressure during ontogenetic development. More complex measurement techniques related to size and shape rather than simply to mass and length should be required to analyze such a complex sexual dimorphism. In this study, differences related to wing shape and size of males and females of Ophion intricatus Brullé (Hymenoptera: Ichneumonidae) were evaluated using geometric morphometrics.

Sexual shape and size dimorphism in carabid beetles of the genus Ceroglossus: is geometric body size similar between sexes due to sex ratio?

Insects in many species vary greatly in the expression of secondary sexual traits, resulting in sexual dimorphism, which has been proposed to be a consequence of differences in sexual selection. In this study, we analyze the occurrence of sexual shape dimorphism and the correlation between geometric body size in males and females and sex ratio in the genus Ceroglossus (Coleoptera: Carabidae) using geometric morphometrics and randomization analysis. Our results show a positive relationship between the centroid size of males and females and sex ratio.