Livestock grazing can be used as a key management tool for maintaining healthy ecosystems. However, the effectiveness of using grazing to modify habitat for species of conservation concern depends on how the grazing regime is implemented. Timing of grazing is one grazing regime component that is less understood than grazing intensity and grazer identity, but is predicted to have important impli...

Ochterus santosi sp. nov., from the state of Piauí, northeastern Brazil, is described, illustrated, and compared with other species of the genus from the Americas. An identification key to the species recorded from the country is also presented.

A key to known species of the subgenus Michalowskiya (Michalowskiya) Dworakowska is provided. Detailed morphological descriptions and illustrations of six new species, Michalowskiya (Michalowskiya) aurantiaca, M. (M.) biprocessa, M. (M.) breviprocessa, M. (M.) brownistriata, M. (M.) longiprocessa, and M. (M.) pedata spp. nov. from China are provided.

Stiretrus decastigmus (Herrich-Schaeffer) (Hemiptera: Pentatomidae) is an important predator of the insect pest Microtheca ochroloma Stal (Coleoptera: Chrysomelidae). The present study investigated the pre-imaginal development of S. decastigmus at different temperatures. The temperatures were: 20, 25, and 30 °C, with a relative humidity of 70 ± 10% and a photofase of 12 h, and the nymphs were f...

A taxonomic and nomenclatural Catalogue of the adelgids (Hemiptera: Adelgidae) is presented. Six family-group names are listed, five being synonyms of Adelgidae. Twenty-two genus-group names, of which nine are subjectively valid and in use, are presented with their type species, etymology, and grammatical gender. One hundred and six species-group names are listed, of which 70 are considered sub...

The cixiid planthopper genus Macrocixius Matsumura, 1914 (Hemiptera: Fulgoromorpha: Cixiidae: Cixiini) is known to from two species: M. giganteus Matsumura, 1914 and M. grossus Tsaur & Hsu, 1991 which are redescribed and illustrated. Two new species, M. rarimaculatus sp. nov. and M. unispinus sp. nov. from south China, are described and illustrated. The generic characteristics are redefined and...

This study contains the first report of stridulatory sound observed in Panstrongylus rufotuberculatus Champion, 1899, and also a new record of this species in Venezuela. The conditions in which stridulation occurred are described, as well as the general environmental characteristics of the localities where it was found. This triatomine only performs the sound in conditions of extreme provocation.

The eggplant mealybug, Coccidohystrixinsolita (Green) (Hemiptera: Pseudococcidae), is recorded from the island of Guam in the Mariana Islands for the first time. Factors indicating that this introduced mealybug has the potential to become a pest of economic importance for agriculture and horticulture on Guam are discussed.

Three new species of Kerria Targioni-Tozzetti from India, namely Kerria pennyae Ahmad & Ramamurthy sp. nov. on Schleichera oleosa from Orissa, Kerria dubeyi Ahmad & Ramamurthy sp. nov. on Ficus bengalensis from Bangalore and Kerria varshneyi Ahmad & Ramamurthy sp. nov. on Ziziphus mauritiana from Punjab are described and illustrated, and a key is provided to species of Kerria known from India.

aLaboratório de Citogenética e Molecular de Insetos, Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas – IBILCE, Universidade Estadual Paulista “Júlio de Mesquita Filho” – UNESP, Rua Cristóvão Colombo, 2265, Jardim Nazareth, CEP 15054-000, São José do Rio Preto, SP, Brazil bLaboratório de Biologia Celular, Departamento de Biologia, Instituto de Biociências, Letras e C...