Results 101 to 110 of about 16,957 (237)

A defensive symbiont and a plant virus confer direct and discrete phenotypes to a cereal aphid in a context‐dependent manner

open access: yesEcological Entomology, EarlyView.
Different BYDV‐PAV isolates exert contrasting effects on aphid fitness, including reproduction and winged production. Different BYDV‐PAV isolates have contrasting effects on aphid dispersal patterns. Aphid feeding behaviour is modulated by the presence of endosymbionts and plant viruses.
Daniel J. Leybourne   +2 more
wiley   +1 more source

Understanding the role of specialized mouthparts in the selective feeding of dung beetles (coleoptera: scarabaeinae) [PDF]

open access: yes, 2021
A dissertation submitted to the Faculty of Science, University of the Witwatersrand, in partial fulfilment of the requirements for the degree of Master of Science, 2021The use of a complex food substance such as herbivore dung, by dung beetles has ...
Mathikge, Nthabiseng Gladys
core  

Ultrastructure of Ericerus pela (Chavannes) nymph mouthparts and ecological adaptations [PDF]

open access: yes, 2012
The ultrastructure of nymph mouthparts of the Chinese white wax scale (CWWS), Ericerus pela , consists internally of the crumena, tentorium, the stylet bundle, comprised of two mandibular stylets and two maxillary stylets, and the external clypeolabral ...
CHEN, Yong   +5 more
core   +3 more sources

First record of Erthesina fullo (Thunberg, 1783) (Hemiptera: Pentatomidae) in Italy

open access: yesEPPO Bulletin, EarlyView.
Abstract The yellow‐spotted stink bug, Erthesina fullo (Thunberg) (Hemiptera: Pentatomidae), is a highly polyphagous stink bug native to Asia with a well‐documented history of human‐mediated dispersal. In recent years, its invasive range has started to expand into Europe.
Davide Scaccini   +3 more
wiley   +1 more source

Distinctive gene expression in the reduced first thoracic legs of a nymphalid butterfly

open access: yesInsect Molecular Biology, EarlyView.
Transcriptome analysis reveals that the small non‐walking front legs of a butterfly have distinct gene expression to the four walking legs. Reduced front legs express a gene with putative mechanosensory roles, a blue‐sensitive opsin and two homeobox genes.
Asia E. Hoile   +2 more
wiley   +1 more source

Morphology of the Mouthparts of Ladybeetle Vibidia duodecimguttata (Coleoptera: Coccinellidae), with Emphasis on Their Sensilla

open access: yesInsects
Mouthparts are the feeding organs of insects, which play vital roles in the feeding process. The morphology of insect mouthparts has greatly evolved according to different foods and feeding habits.
Long Chen   +4 more
doaj   +1 more source

First observation on the antennal cleaning behaviour in Archaeognatha (Insecta) [PDF]

open access: yesDeutsche Entomologische Zeitschrift
Antennal cleaning behaviour in Archaeognatha is documented for the first time, supported by photographs and video observations of a male Petrobiellus akkesiensis (Machilidae, Petrobiellinae) collected from Hokkaido, Japan.
Shodo Mtow
doaj   +3 more sources

Transcriptional responses of Aedes aegypti chemosensory tissues in response to volatile DEET and citronella oil

open access: yesInsect Molecular Biology, EarlyView.
Aedes aegypti females were significantly repelled by both volatile DEET and citronella oil in comparison to control (ethanol‐exposed) mosquitoes. Global gene expression changes were largest in the mosquito mouthparts, with notable downregulation of the three subunits comprising the mosquito CO2 receptor (Gr1, 2 and 3).
Ivan Drahun   +3 more
wiley   +1 more source

An investigation into the diet of elephant fish (Callorhinchus milii) in the waters of Aotearoa/New Zealand

open access: yesJournal of Fish Biology, EarlyView.
Abstract Chondrichthyans (sharks, rays and chimaeras) are increasingly understood to be an important part of ocean ecosystems, but their ecological role is unclear. Callorhinchus milii (elephant fish) is a chimaera species endemic to Aotearoa/New Zealand and southern Australian waters.
Kat U. C. Cooper   +3 more
wiley   +1 more source

Serially homologous development of the peripheral nervous system in the mouthparts of the grasshopper [PDF]

open access: yes, 1991
Segmentally homologous neurogenesis and neuronal differentiation processes characterize the formation of the peripheral nervous system in the developing mouthparts of the grasshopper embryo.
Reichert, H., Meier, T.
core  

Home - About - Disclaimer - Privacy