scholarly journals The Tergal Gland Secretion of the Two Rare Myrmecophilous SpeciesZyras collarisandZ. haworthi(Coleoptera: Staphylinidae) and the Effect onLasius fuliginosus

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Michael Stoeffler ◽  
Lea Boettinger ◽  
Till Tolasch ◽  
Johannes L. M. Steidle
Keyword(s):  
Filter Paper ◽  
Aphid Species ◽  
Gland Secretion ◽  
Beetle Species ◽  
Tergal Gland ◽  
Lasius Fuliginosus ◽  
Tergal Glands ◽  
Rove Beetle ◽  
Tergal Gland Secretion

The beetle speciesZyras collarisandZ. haworthibelong to the rove beetle tribe Myrmedoniini (Staphylinidae: Aleocharinae), which comprises many myrmecophilous species. Due to their rareness, it is unknown how the two species interact with their host ants. GC-MS analyses revealed that both species releaseα-pinene,β-pinene, myrcene and limonene from their defensive tergal glands. This composition of tergal gland secretion is unique within the subfamily Aleocharinae. In biotests,Lasius fuliginosusants showed increased antennation towards filter paper balls treated with mixtures of these substances in natural concentrations. Because these monoterpenes are also present in some aphid species which are attended by ants, we hypothesize thatZyrasbeetles mimic the presence of aphids and thereby achieve acceptance by their host ants.

Tergal Gland Secretion of the Rove Beetle Aleochara pseudochrysorrhoa (Staphylinidae: Aleocharinae): Chemical Composition and Biological Roles

2020 ◽  
Vol 17 (10) ◽  
Author(s):  
Maycon R. Silva ◽  
Diogo M. Vidal ◽  
Leonardo Figueiredo ◽  
Pamela T. Bandeira ◽  
Jan Bergmann ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Gland Secretion ◽  
Tergal Gland ◽  
Rove Beetle ◽  
Tergal Gland Secretion

Discussion on the systematic position of the oxyteline rove beetle Anotylus archaicus Yue, Makranczy & Ren, 2012 (Coleoptera: Staphylinidae)

2013 ◽  
Vol 44 (2) ◽  
pp. 203-212 ◽  
Author(s):  
Chenyang Cai ◽  
Diying Huang
Keyword(s):  
Sexual Dimorphism ◽  
Lower Cretaceous ◽  
Northeast China ◽  
Abdominal Segment ◽  
New Genus ◽  
Systematic Position ◽  
Beetle Species ◽  
Female Specimen ◽  
Rove Beetle ◽  
Comprehensive Comparison

A remarkable oxyteline rove beetle species, Anotylus archaicus Yue, Makranczy & Ren, 2012, has recently been described based on several exquisitely preserved fossil impressions from the Lower Cretaceous Yixian Formation of Liaoning, northeast China. Based on our two new specimens and a comprehensive comparison with extant Anotylus species, we here suggest that all the previously-reported and new specimens, bearing separated gular sutures, sub-contiguous mesocoxae, 5-segmented metatarsi, short and poorly-sclerotized abdominal segment II, and abdominal segments III–VII each with one pair of paratergites, represent a new genus and belong to the basal oxyteline tribe Euphaniini rather than Oxytelini. In addition, it was suggested as the earliest fossil rove beetle demonstrating sexual dimorphism, the male with strong projections of the anterior pronotal angles. However, we suggest that the sexual dimorphism is probably misinterpreted, since the so-called projections can also be found in a female specimen. The projections actually formed when the anterior pronotal margin broke, a condition when the head is retracted into the pronotum.

scholarly journals Contribution to the knowledge of the arthropods community inhabiting the winter-flooded meadows (marcite) of northern Italy

2021 ◽  
Vol 9 ◽  
Author(s):  
Francesca Della Rocca ◽  
Silvia Stefanelli ◽  
Elisa Cardarelli ◽  
Giuseppe Bogliani ◽  
Francesco Bracco
Keyword(s):  
Ground Beetle ◽  
Northern Italy ◽  
Agricultural Landscapes ◽  
Butterfly Species ◽  
Beetle Species ◽  
Rove Beetles ◽  
Invertebrate Conservation ◽  
Rove Beetle ◽  
Natural Grasslands

Flooded semi-natural grasslands are endangered ecosystems throughout Europe. In Italy, amongst flooded meadows, one special type called “marcita” is strongly threatened. It is a stable flooded grassland used to produce green forage even during winter months due to the thermal properties of water coming from springs and fountains that prevent the soil from freezing. To date, some research has been carried out to investigate the role of the marcita for ornithological and herpetological communities. However, no comprehensive data on invertebrates inhabiting this particular biotope available. The aim of this study was to characterise the terrestrial entomological community of these typical winter-flooded meadows in northern Italy and, in particular, in six marcita fields located in the Ticino Valley Regional Park. We collected data on species richness and diversity of Carabidae, Staphylinidae, Araneae, Lepidoptera and Orthoptera inhabiting marcita during the summers of 2014 and 2015 and data on overwintering Coleoptera during the winter of 2014-2015. Amongst the collected species, we identified those highly linked to this habitat. We found a total of 47 ground beetle species, 35 rove beetle species, 29 spider species, one Lucanidae, 16 butterfly species and 24 grasshopper and cricket species. Most of the species were collected during the summers of 2014 and 2015, while some others were also, or exclusively, overwintering (17 ground beetles, four rove beetles and one Lucanidae) and were collected during the winter of 2014-2015. Marcita fields hosted specialised species and species typical of hygrophilous habitats, amongst which are included the butterfly Lycaena dispar, the ground beetle Dolichus halensis and the grasshopper Chrysochraon dispar. This study represents the first contribution to the knowledge of terrestrial arthropod communities associated with this particular type of winter-irrigated meadow in Europe and confirms the importance of this biotope for invertebrate conservation in agricultural landscapes.

Notizen: Volatiles from the Defensive Secretions of Two Rove Beetle Species (Coleoptera: Staphylinidae)

1986 ◽  
Vol 41 (3) ◽  
pp. 366-368 ◽  
Author(s):  
Konrad Dettner ◽  
Gerhard Schwinger
Keyword(s):  
Defensive Secretion ◽  
Beetle Species ◽  
Defensive Secretions ◽  
Rove Beetles ◽  
Rove Beetle ◽  
First Time

From the defensive secretion of the rove beetles (Coleoptera: Staphylinidae) Ontholestes murinus (L.) and Xantholinus glaber (Norden) nine volatiles have been identified by GC-MS data. From O. murinus a spiroketal was recorded for the first time from an arthropod defensive secretion. X . glaber has been found to represent the first staphylinid sequestering the monoterpenes limonen and isopulegol.

scholarly journals Efficacy of Two Species of Coccinellid Predators Against Four Different Aphid Pest Species at Khumaltar, Nepal

2018 ◽  
Vol 35 (1) ◽  
pp. 127-134
Author(s):  
B. Maharjan ◽  
R. B. Thapa ◽  
A. S.R. Bajracharya
Keyword(s):  
Agricultural Research ◽  
Mass Rearing ◽  
Control Agent ◽  
Aphid Species ◽  
Lipaphis Erysimi ◽  
Pest Species ◽  
Beetle Species ◽  
Larval Weight ◽  
Larval Stages ◽  
Agricultural Research Council

An experiment was conducted in completely randomized design (CRD) to study the efficacy and biology of two coccinellid species with four aphid species at the mass-rearing laboratory of Entomology Division, Nepal Agricultural Research Council (NARC), Khumaltar from February to May 2016. Two coccinellid species, i.e. Coccinella septumpunctata Linn. and Adonia variegate (Goeze) were given four aphid species viz; Myzus persicae (Sulzer), Lipaphis erysimi (Kaltenbach), Aphis craccivora (Koch) and Brevicorynae brassicae Linn. separately to compare the efficacy of two beetle species as effective bio-control agent. Predatory activity of C. septumpunctata was the highest on L. erysimi(feeding 183 aphids) and the lowest on A. craccivora (feeding on 126 aphids), while, that of A. variegate (Goeze) was the highest on L. erysimi (feeding 155.4 aphids) and the lowest on B. brassicae (feeding 112 aphids) during their larval stages. Fourth instar individual larval weight of C. septumpunctata was recorded the highest (26.82 mg) when fed on A. craccivora and the lowest (13.9 mg) when fed on B. brassicae, while the 4th instar larval weight of A. variegate was only 12.82 mg and 11.34mg when fed on same aphid species. Pupal and adult weight was also recorded the highest for C. septumpunctata as compared to A. variegata. Similar result was obtained for weights of adult when larvae fed on A. craccivora. The weight of female was observed relatively higher than that of male from this study for both beetle species. There was a positive correlation between predation and weight gained by larvae with respect to all aphid species. From this study, it can be concluded that C. septumpunctata seems better promising species of predators of aphids, especially beneficial in biological control of aphid species.

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