scholarly journals VARIABILITY OF PRONOTUM PATTERNS IN LADYBIRD BEETLE HARMONIA AXYRIDIS PALLAS (COLEOPTERA, COCCINELLIDAE)

2007 ◽  
Vol 5 (2) ◽  
pp. 25-36 ◽  
Author(s):  
Alla V Blehman
Keyword(s):  
Sexual Dimorphism ◽  
Harmonia Axyridis ◽  
Geographic Variability ◽  
Ladybird Beetle ◽  
First Time ◽  
Harmonia Axyridis Pallas

The polymorphism of pronotum patterns in ladybird beetle Harmonia axyridis was studied, 14 phenotypes of this character were identified for the first time. The contingency of pronotum variability with elytral patterns were investigated. For the first time the sexual dimorphism for pronotum patterns was revealed, and its peculiarity was analyzed. The analysis of geographic variability of pronotum patterns confirms the hypothesis for existence of two subspecies in H. axyridis.

Overwintering ability of a flightless strain of the ladybird beetle Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae)

BioControl ◽  
2019 ◽  
Vol 64 (4) ◽  
pp. 391-399 ◽  
Author(s):  
Shinya Takahashi ◽  
Motoaki Kinoshita ◽  
Shuhei Adachi ◽  
Tomokazu Seko ◽  
Makoto Tokuda
Keyword(s):  
Harmonia Axyridis ◽  
Ladybird Beetle ◽  
Flightless Strain ◽  
Harmonia Axyridis Pallas

Growth patterns of the ladybird (Harmonia axyridis Pallas) relative to variations in population genetics

1995 ◽  
Vol 16 (1) ◽  
pp. 35-38 ◽  
Author(s):  
R. P. Kuang ◽  
N. N. Xiao
Keyword(s):  
Population Genetics ◽  
Population Growth ◽  
Growth Rates ◽  
Harmonia Axyridis ◽  
Growth Parameters ◽  
Growth Patterns ◽  
The Other ◽  
Ladybird Beetle ◽  
Harmonia Axyridis Pallas

AbstractDifferences in population growth among four variation types of the ladybird beetle, Harmonia axyridis Pallas, namely succinea, conspicua, spectabilis and aulica, were investigated using various growth parameters. The variation types showed three growth patterns from the intrinsic growth rates (rm), with rates of 0.093–0.099 (for conspicua and aulica), 0.073 (for succinea) and 0.040 (for spectabilis). The growth rates of these patterns were realised in different ways. Spectabilis differed from the other three types in the age and per cent distribution of the specific period to the rm values.

scholarly journals The potential of different fruit species as food for Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae)

2013 ◽  
Vol 35 (4) ◽  
pp. 1025-1031 ◽  
Author(s):  
Camila Fediuk de Castro Guedes ◽  
Lúcia Massutti de Almeida
Keyword(s):  
Harmonia Axyridis ◽  
The South ◽  
Significant Percentage ◽  
Fruit Species ◽  
Fruit Growing ◽  
Almost All ◽  
First Time ◽  
Harmonia Axyridis Pallas

Harmonia axyridis was detected for the first time in Brazil in 2002. Since then, it has been recorded from the South to the Midwest of the country. Until now, almost all the registered cases were associated with the presence of aphids, its preferred source of food. Due to the occurrence of this species in areas of fruit growing in the South and Southeast of Brazil, the aim of this study was to analyze the preference and use of three different cultivars of fruit. The tests were set at 25ºC ± 1ºC, RH 70% ± 10%, and in a photophase of 12 h and with apples (Gala and Fuji), grapes (Niágara and Rubi), and pears (Williams and Asian). In the undamaged fruit experiment, the insects did not cause any noticeable damage. In the damaged and undamaged fruit experiment, a higher and statistically significant percentage of H. axyridis adults were found in the three damaged fruits. In the different cultivar experiment the Niágara grape, the Gala apple, and the Williams pear were significantly preferred by H. axyridis adults. These results may help in the management of this insect, preventing damage, which have been observed in other places where H. axyridis was introduced.

scholarly journals Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) – expansion to the north: first records of invasion species in Yaroslavl and Novgorod Regions

2021 ◽  
Vol 4 (4) ◽  
pp. 3-6
Author(s):  
Alexey S. Sazhnev ◽  
Dmitry V. Vlasov ◽  
Aleksander A. Rusinov ◽  
Viktor D. Titov
Keyword(s):  
Alien Species ◽  
Harmonia Axyridis ◽  
European Part ◽  
European Russia ◽  
Northern Caucasus ◽  
The North ◽  
European Part Of Russia ◽  
Invasion Species ◽  
First Time ◽  
Harmonia Axyridis Pallas

The paper gives information on the invasion of Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) into the north of the European part of Russia. The Asian ladybird is recorded for the first time from the Novgorod and Yaroslavl Regions. All records of this alien species from European Russia and the Northern Caucasus are listed.

EJECTION AND INGESTION OF THE SPERMATOPHORE BY THE FEMALE LADYBIRD BEETLE, HARMONIA AXYRIDIS PALLAS (COLEOPTERA: COCCINELLIDAE)

1987 ◽  
Vol 119 (6) ◽  
pp. 603-604 ◽  
Author(s):  
Shohko Obata ◽  
Toshitaka Hidaka
Keyword(s):  
Genital Tract ◽  
Harmonia Axyridis ◽  
Female Genital Tract ◽  
Sperm Transfer ◽  
Ladybird Beetle ◽  
Harmonia Axyridis Pallas ◽  
Female Genital

Sperm transfer in the aphidophagous ladybird beetle, Harmonia axyridis Pallas, is by a spermatophore (unpublished data). Although the utilization of spermatophores in insects has been considered to be a more primitive method of insemination than direct sperm transfer, males of many orders produce spermatophores (Chapman 1969; Gerber 1970; Leopold 1976). The remains of the spermatophore, after the sperm has migrated to the spermatheca, is ejected by the female in some species and dissolved within the female genital tract in others (Chapman 1969; Leopold 1976). In Coccinellidae, Fisher (1959) reported on spermatophore formation of Chilocorus spp. and indicated that the female ejected the empty spermatophore 18–24 h after copulation. In this paper evidence is presented that H. uxyridis females not only eject the empty spermatophore but also feed on it.

scholarly journals High Variability in Pre-Oviposition Time Independent of Diet Available at Eclosion: A key Reproductive Trait in the Ladybird Beetle Harmonia axyridis (Coleoptera: Coccinellidae) in Its Native Range

Insects ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 382
Author(s):  
Séverin Hatt ◽  
Naoya Osawa
Keyword(s):  
Harmonia Axyridis ◽  
Reproductive Traits ◽  
High Variability ◽  
Generalist Predator ◽  
Native Range ◽  
Ladybird Beetle ◽  
Adult Eclosion ◽  
Linear Relationships ◽  
Insect Predators ◽  
Harmonia Axyridis Pallas

While insect predators need high-quality food to reach sexual maturity and reproduce, starvation following adult eclosion may occur when prey are missing in agroecosystems. This study explores whether the type of diet available at eclosion determines the future fecundity of newly emerged adult predators. In a laboratory experiment, three different diets (i.e., flowers of Perilla frutescens (L.) Britton, eggs of Ephestia kuehniella Zeller as prey, or no food) were offered to adult females of the ladybird beetle Harmonia axyridis Pallas during their first three days after adult eclosion. On the fourth day, each female was paired with a prey-fed male and the pair was subsequently fed with prey. Diet at eclosion did not affect pre-oviposition time, the number of eggs oviposited daily, or the viability of egg batches. High variability in pre-oviposition time among females was observed for all diets. Significant negative linear relationships were found between pre-oviposition time and both the number of eggs oviposited daily and the viability of egg batches. This study clarifies that the food readily available at adult eclosion does not affect the capacity of H. axyridis to reproduce, provided that adults find prey within a few days. More generally, it shows that the reproductive traits of H. axyridis allow this generalist predator to be highly adapted to heterogenous environments in its native range. It is concluded that the variety of habitats offered by diversified agroecosystems may highly benefit the ladybird beetle H. axyridis, and potentially enhance its ability to biologically regulate crop pests.

scholarly journals FIRST RECORD OF HARMONIA AXYRIDIS (PALLAS, 1773) (COLEOPTERA: COCCINELLIDAE) FROM MONTENEGRO

2016 ◽  
Vol 6 ◽  
pp. 40-41
Author(s):  
Aleksandra Gligorović ◽  
Halil Ibrahimi ◽  
Bogić Gligorović
Keyword(s):  
Harmonia Axyridis ◽  
First Record ◽  
First Time ◽  
Harmonia Axyridis Pallas

In this paper the alien coccinellid Harmonia axyridis (Pallas, 1773) is reported for the first time for Montenegro.

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