Results 131 to 140 of about 343,225 (409)

Biological invasion by the cycad‐specific scale pest Aulacaspis yasumatsui (Diaspididae) into Cycas revoluta (Cycadaceae) populations on Amami‐Oshima and Okinawa‐jima, Japan

open access: yesPlant Species Biology, EarlyView.
This article details the invasion of cycad aulacaspis scale into the islands of Okinawa‐Jima and Amami‐Oshima. Several recommendations are proposed in this article by members of the IUCN cycad specialist group and experts in the biological control of this scale insect.
Benjamin E. Deloso   +12 more
wiley   +1 more source

The quality of aphids as food for generalist predators: implications for natural control of aphids

open access: yesEuropean Journal of Entomology, 2005
The paper reviews existing data on the food quality of cereal aphids for generalist predators. Data are presented for spiders, harvestmen, carabid and staphylinid beetles, cockroaches, ants and one species of bird.
Søren TOFT
doaj   +1 more source

Effect of supplementary nutrition on the reproduction and mating behaviour of Habrobracon hebetor (Hymenoptera: Braconidae)

open access: yesEuropean Journal of Entomology, 2020
To improve the mass production of the parasitoid Habrobracon hebetor (Say) (Hymenoptera: Braconidae) the effects of supplementary nutrition on its reproduction and mating behaviour were investigated using Plodia interpunctella Hübner (Lepidoptera ...
Yanzhang HUANG   +4 more
doaj   +1 more source

The evolution of queen control over worker reproduction in the social Hymenoptera [PDF]

open access: yesarXiv, 2017
A trademark of eusocial insect species is reproductive division of labor, in which workers forego their own reproduction while the queen produces almost all offspring. The presence of the queen is key for maintaining social harmony, but the specific role of the queen in the evolution of eusociality remains unclear.
arxiv  

Occurrence of a Gynandromorphic Bombus bimaculatus (Hymenoptera: Apidae) in Southeastern Ohio [PDF]

open access: yes, 2017
Herein, we introduce the first reported case of gynandromorphy in the bumblebee Bombus bimaculatus (Cresson) (Hymenoptera: Apidae), a relatively common North American species found east of the Mississippi River.
Gardiner, Mary M   +2 more
core   +3 more sources

Hymenoptera

open access: yes, 2008
Published as part of Perez-Gelabert, Daniel E., 2008, Arthropods of Hispaniola (Dominican Republic and Haiti): A checklist and bibliography, pp.
openaire   +2 more sources

More than fruity scents: Pollination biology, scent, and spectral reflectance of Annonaceae species

open access: yesPlant Species Biology, EarlyView.
We characterised the floral visual and olfactory cues of numerous Annonaceae species and reported their pollinators. We further assessed the olfactory space of most Annonaceae species available in the literature. Abstract The family Annonaceae possesses a broad array of floral phenotypes and pollination specializations, and are important in the plant ...
Ming‐Fai Liu   +4 more
wiley   +1 more source

Influence of natal host on parasitism by Spalangia cameroni (Hymenoptera: Pteromalidae)

open access: yesEuropean Journal of Entomology, 2016
Spalangia cameroni Perkins (Hymenoptera: Pteromalidae) is sold commercially as a biocontrol agent of filth flies, including the house fly, Musca domestica L. (Diptera: Muscidae). For this reason, S.
Francisco BEITIA   +5 more
doaj   +1 more source

Frequency and Viability of Diploid and Haploid Males Offsprings of Mated Females of Solitary Endoparasitoid (DIADROMUS Pulchellus) (Ichneumonidae) [PDF]

open access: yesComptes Rendus de l'Academie des Sciences. Serie 3, Sciences de la Vie 324 (2001) 149-158, 2006
Sex determination in the order Hymenoptera is based on arrhenotoky, hymenopteran males are usually haploid and females diploid. Males of the Ichneumonidae Diadromus pulchellus, solitary endoparasitoid of A. assectella pupae are normally haploid, but diploid males are present in a natural population and can be obtained in a experimental population.
arxiv  

Chemoreceptor Evolution in Hymenoptera and Its Implications for the Evolution of Eusociality

open access: yesGenome Biology and Evolution, 2015
Eusocial insects, mostly Hymenoptera, have evolved unique colonial lifestyles that rely on the perception of social context mainly through pheromones, and chemoreceptors are hypothesized to have played important adaptive roles in the evolution of ...
Xiaofan Zhou   +5 more
semanticscholar   +1 more source

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