Results 51 to 60 of about 19,252 (229)

Occurrence of arrhenotoky and thelytoky in a parasitic wasp Venturia canescens (Hymenoptera: Ichneumonidae): Effect of endosymbionts or existence of two distinct reproductive modes?

open access: yesEuropean Journal of Entomology, 2013
Endosymbiotic organisms are known to manipulate the reproductive biology of their hosts. Incomplete prevalence of endosymbiont inducing thelytokous parthenogenesis results in the coexistence of sexual and asexual individuals, and could account for the ...
Vincent FORAY   +4 more
doaj   +1 more source

First notice of Therion from South America with description of two new species from Argentina and Bolivia (Hymenoptera: Ichneumonidae) [PDF]

open access: yes, 1999
Therion Curtis (Ichneumonidae: Anomalinae) has a nearly cosmopolitan geographic distribution but has not previously been recorded from South America. In most Therion the tarsal claws are simple or have only a few inconspicuous teeth near the base.
Porter, Charles C.
core  

A New Species of Mnioes (Hymenoptera: Ichneumonidae) from the United States [PDF]

open access: yes, 2017
This is the first record of the genus Mnioes in the United States. Previously described species are all Neotropic. Townes described the genus in 1946, placing Lampronota? jircunda Cresson, 1874, and Meniscus ? orbitalis Cresson, 1874, in it.
Kennedy, Patrick C.
core   +3 more sources

Insectary Plant Species Preferences of Predators and Parasitoid Families in a Mediterranean Horticultural Agroecosystem

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT The use of insectary plants to provide alternative food and shelter resources for enhancing natural enemy activity has been established as a common practice in IPM. Candidate flowering plant species have been screened and evaluated for their contribution to enhance life parameters of beneficial insects.
Francesc Gómez Marco   +6 more
wiley   +1 more source

Testing the impact of laboratory reared indigenous leafroller (Lepidoptera: Tortricidae) parasitoids (Hymenoptera: Ichneumonidae, Braconidae) on sentinel hosts in controlled orchard releases

open access: yesEuropean Journal of Entomology, 2008
Leafrollers can experience high levels of indigenous parasitism in organically managed apple orchards and the augmentative release of specific parasitoid species to suppress these secondary pests may be advantageous in orchards converting to non-chemical
Joan E. COSSENTINE
doaj   +1 more source

Two New Genera of Hemisarcoptidae (Acari: Astigmata) From the Huron Mountains of Northern Michigan [PDF]

open access: yes, 2017
Two new genera and species of Hemisarcoptidae, Superioropus huronmontanus and Huronopus michiganensis are described from deutonymphs phoretic on ichneumonid wasps from the Huron Mountains, Marquette County ...
Houck, Marilyn A, OConnor, Barry M
core   +2 more sources

New Insight Into the Evolutionary Arms Race Between Spider Egg Sac Pseudoparasitoids and Active Maternal Care by the Spiders

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
We analysed various points of the counter‐adaptations of the spider egg sac pseudoparasitoid and spiders exhibiting active maternal care, utilising the ichneumonid Hidryta fusiventris and the wolf spider Pardosa lugubris. We observed that there is a time shift of approximately 1 month between the first egg sac of P.
Agata Kostro‐Ambroziak   +6 more
wiley   +1 more source

Comparative Mitochondrial Genomics of 104 Darwin Wasps (Hymenoptera: Ichneumonidae) and Its Implication for Phylogeny

open access: yesInsects, 2022
Ichneumonidae is one of the largest families of insects with a mega-diversity of specialized morphological and biological characteristics. We newly sequenced 92 mitochondrial genomes of ichneumonid wasps and found that they have a conserved base ...
Boying Zheng   +6 more
doaj   +1 more source

The Effects of LED Daylength Extensions on the Daily Activity Patterns of a Greenhouse Biological Control Agent, Aphidius matricariae

open access: yesEntomologia Experimentalis et Applicata, Volume 174, Issue 5, Page 398-410, May 2026.
We used automated activity monitors to examine how light‐emitting diode illumination affects the daily locomotor activity of the parasitoid biocontrol agent Aphidius matricariae. We compared 4‐ to 20 h broad‐spectrum white (BSW) photoperiods, and 12 h BSW photoperiods extended with an additional 6 h of red‐blue, red‐green‐blue, or BSW light, or no ...
Jessica L. Fraser   +2 more
wiley   +1 more source

A \u3ci\u3ePerithous\u3c/i\u3e (Hymenoptera: Ichneumonidae) Introduced from Europe [PDF]

open access: yes, 2017
A female specimen of Perithous (Hybomischos) septemcinctorius (Thunberg) was collected from a spider web in a garage in Ann Arbor, Michigan, on May 4, 1972.
Torgersen, Torolf B.
core   +2 more sources

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