Results 41 to 50 of about 2,877 (247)

Structures of Spermatheca and Eggs of the Red Firebug, Pyrrhocoris apterus (L. 1758) (Heteroptera: Pyrrhocoridae), Based on Optical and Scanning Electron Microscopy

open access: yesGAZI UNIVERSITY JOURNAL OF SCIENCE, 2021
In this study, spermatheca and eggs of Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae were examined by light microscope and SEM. The eggs have ~1.30 mm length and 0.94 mm width.
N. Ö. Koçakoğlu, S. Candan
semanticscholar   +1 more source

Biology of Newly Recorded Predator Antilochus coquebertii of Red Cotton Bug, Dysdercus koenigii Fabricius (Hemiptera: Pyrrhocoridae) from Pakistan

open access: yesJournal of the Kansas Entomological Society, 2020
The red cotton bug, Dysdercus koenigii F. (Hemiptera: Pyrrhocoridae) is a destructive pest of cotton in the cotton belt region of Pakistan. This pest attacks the cotton bolls, mature cotton seeds and causes serious damage to premature bolls. A trial was conducted under laboratory conditions to check the predatory potential of A.
Rabia Saeed   +7 more
semanticscholar   +2 more sources

Relationships between locomotor activity, oxidative damage and life span in males and females of the linden bug, Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

open access: yesEuropean Journal of Entomology, 2013
In this study we addressed a question of whether experimental manipulations that increase life span also reduce physical activity and molecular oxidative damage.
Marcela BURICOVA, Magdalena HODKOVA
doaj   +1 more source

First report on a multiple sex chromosome system (X1X2X30) and population variations in the frequency of ring bivalents in Pyrrhocoridae (Hemiptera: Heteroptera)

open access: yesEuropean Journal of Entomology, 2015
The family Pyrrhocoridae (Hemiptera: Heteroptera) is characterized by a modal diploid chromosome number of 16 (♂) ranging from 12 to 33 and simple (X0), multiple (X1X20) and neo-sex chromosome systems (neoX-neoY).
Harbhajan KAUR, Kalchana GABA
doaj   +1 more source

Seed preferences of Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae): Are there specialized trophic populations?

open access: yesEuropean Journal of Entomology, 2011
The populations of the firebug Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae) in Europe exhibit three kinds of host plant associations: feeding on seeds of (1) Tilia spp. (Tiliaceae), (2) Malvaceae (s. str.), and (3) Robinia pseudacacia (Fabaceae). The
Marta KRISTENOVÁ   +2 more
doaj   +1 more source

An Overview of the Heteroptera of Illinois [PDF]

open access: yes, 2017
A key to adults of all heteropteran families known to occur in Illinois is presented together with general information on the biologies of these families.
McPherson, J. E
core   +3 more sources

Cold tolerance strategy and cold hardiness of the invasive zigzag elm sawfly Aproceros leucopoda (Hymenoptera: Argidae)

open access: yesAgricultural and Forest Entomology, Volume 22, Issue 3, Page 231-237, August 2020., 2020
Abstract The invasive sawfly Aproceros leucopoda causes severe defoliation of various elm species and thus can be a major pest in forest stands and urban environments. The overwintering biology of A. leucopoda has not been investigated so far; therefore, the aim of this study was to determine the cold tolerance strategy and cold hardiness of ...
Gábor Vétek   +7 more
wiley   +1 more source

Description of motile immature stages of Hemipteroseius indicus (Krantz & Khot) (Acari: Otopheidomenidae)

open access: yesPersian Journal of Acarology, 2018
The larva, protonymph and deutonymph of Hemipteroseius indicus (Krantz & Khot, 1962) are described from specimens collected on the red cotton bug, Dysdercus sp. (Hemiptera: Pyrrhocoridae) in India and Democratic Republic of Congo.
Vikram Prasad
doaj   +1 more source

Some Notes on Heteropteran Trichobothria [PDF]

open access: yes, 2017
Excerpt: There has been much recent interest in the comparative morphology of the Heteroptera. This work has emphasized the land bugs, or Geocorisae, and has been concerned with working out the relationships and taxonomic placement of the higher ...
Schaefer, Carl W.
core   +3 more sources

Predation of Dysdercus cingulatus (Heteroptera: Pyrrhocoridae) by the specialist predator Antilochus coqueberti (Heteroptera: Pyrrhocoridae)

open access: yesApplied Entomology and Zoology, 2004
Antilochus coqueberti predators of each developmental stage exhibited a relatively broad prey size range against their prey Dysdercus cingulatus when a single prey individual was provided in the laboratory. On the other hand, when two prey individuals of different developmental stages were provided together for a single predator in the laboratory ...
Katsuyuki Kohno   +2 more
openaire   +2 more sources

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