SOME NOTES ON THE BIOLOGY OF THE CLICK BEETLES AGRIOTES OBSCURUS L. AND A. SPUTATOR L.

1942 ◽  
Vol 29 (3) ◽  
pp. 275-279 ◽  
Author(s):  
H. C. Gough ◽  
A. C. Evans
Keyword(s):  
Click Beetles ◽  
Agriotes Obscurus

scholarly journals Effect of Collection Month, Visible Light, and Air Movement on the Attraction of Male Agriotes obscurus L. (Coleoptera: Elateridae) Click Beetles to Female Sex Pheromone

Insects ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 729
Author(s):  
Joyce P. S. Leung ◽  
Jenny S. Cory ◽  
J. Todd Kabaluk ◽  
Alida F. Janmaat
Keyword(s):  
Sex Pheromone ◽  
Visible Light ◽  
Life Stage ◽  
Management Tool ◽  
Female Sex Pheromone ◽  
Click Beetles ◽  
Agriotes Obscurus ◽  
Female Sex ◽  
Air Movement ◽  
Click Beetle

Elaterid female sex pheromone, while currently used for monitoring the adult life stage (click beetle), has only recently been explored as a potential management tool. Consequently, there is little understanding of how abiotic and biotic conditions influence the response of click beetles to the pheromone. We examined whether the response of male Agriotes obscurus L. (Coleoptera: Elateridae) beetles to a cellulose-based formulation of female sex pheromone (‘pheromone granules’) is influenced by air movement, presence of visible light, and month of beetle collection. In addition, we investigated the distance from which beetles were attracted to the pheromone granules. Click beetle response was determined by measuring movement parameters in free-walking arena experiments. The response to pheromone was not affected by the presence or absence of visible light. We found that beetles collected earlier in the season had increased activity and interaction with pheromone under moving air conditions, compared to beetles collected later. When controlling for storage time, we confirmed that individuals collected in May were less active than beetles collected in March and April. In the field, beetles were recaptured from up to 14 m away from a pheromone granule source, with over 50% being recovered within 4.4 h from a distance of 7 m or less. Understanding how abiotic and biotic factors affect pest response to pheromone can lead to more effective and novel uses of pheromone-based management strategies.

scholarly journals The Effect of Simulated Seasonal Temperatures On Metarhizium Brunneum-Associated Mortality In Two Click Beetle Species, And A Degree-Day Infection Model

2021 ◽  
Author(s):  
Todd Kabaluk ◽  
Sophie Ruau ◽  
Anita Poon
Keyword(s):  
Infection Model ◽  
Beetle Species ◽  
Agricultural Pests ◽  
Degree Days ◽  
Click Beetles ◽  
Agriotes Obscurus ◽  
Metarhizium Brunneum ◽  
Temperature Oscillations ◽  
Click Beetle ◽  
Gradient Plate

Abstract Wireworms (Coleoptera: Elateridae), the larvae of adult click beetles are subterranean and generalist crop pests that can be difficult to target. Targeting adult beetles, however, may be an effective method to lower wireworm populations. Metarhizium brunneum (Petch) kills click beetles but the mortality rate was expected to vary according to temperature. Using a thermal gradient plate to simulate daily oscillating temperatures for April, May, and June, the effectiveness of M. brunneum strains LRC112 and F52 in causing mortality to Agriotes obscurus (L.) and A. lineatus (L.) beetles was studied. Mortality was fastest in beetles exposed to June temperatures and slowest in those exposed to April temperatures, with differences among beetle species x M. brunneum strain combinations. Warmer temperatures resulted in more rapid mycelial outgrowth and conidiation in beetle cadavers, with only A. obscurus infected with M. brunneum LRC112 attaining near 100% conidiation. The number of degree days required to kill 50% of the beetles (LDD50) was least for A. obscurus infected with M. brunneum LRC112 (176) followed by A. obscurus x M. brunneum F52 (212), A. lineatus x M. brunneum LRC112 (215), and A. lineatus x M. brunneum F52 (292). Hypothetical calculations showed that M. brunneum exposure earlier in the season resulted in a longer LT50 but the earliest LT50 calendar date. Later M. brunneum exposure dates resulted in lower LT50’s, but later LT50 dates. This conceptual work demonstrates the importance of considering daily temperature oscillations, seasonality, and degree days in predicting the efficacy of entomopathogens to manage agricultural pests.

scholarly journals Fauna of click beetles (Coleoptera: Elateridae) in the interfluve of Rivers Moksha and Sura, Republic of Mordovia, Russia

2018 ◽  
Vol 19 (4) ◽  
pp. 1352-1365 ◽  
Author(s):  
ALEXANDER B. RUCHIN ◽  
LEONID V. EGOROV ◽  
GENNADY B. SEMISHIN
Keyword(s):  
New Record ◽  
Literature Information ◽  
Click Beetles ◽  
Agriotes Obscurus ◽  
High Degree ◽  
Agriotes Lineatus

Ruchin AB, Egorov LV, Semishin GB. 2018. Fauna of click beetles (Coleoptera: Elateridae) in the interfluve of Rivers Mokshaand Sura, Republic of Mordovia, Russia. Biodiversitas 19: 1352-1365. The results of the study of fauna of click beetles in the Republicof Mordovia are presented. By now, 58 species of click beetles have been recorded here. Adrastus pallens is a new record for therepublic. As per the literature information, 6 species of click beetles (Agriotes pilosellus, Melanotus crassicollis, Melanotus fusciceps,Liotrichus affinis, Pseudanostirus globicollis, Stenagostus rufus) are known and these indications require confirmation. Two species(Agriotes acuminatus, Limoniscus suturalis) are excluded from the fauna. Taking into account the literary information in the fauna ofMordovia, 64 species of Elateridae are known. Agrypnus murinus, Agriotes lineatus, Agriotes obscurus, Agriotes sputator, Dalopiusmarginatus, Ampedus balteatus, Ampedus pomorum, Hemicrepidius niger, Athous subfuscus, Prosternon tessellatum, Selatosomusaeneus are among the mass species. A list of the species is presented, which with a high degree of probability can still be found in therepublic

Spring and latch mechanism flings click beetles into the air

Physics World ◽  
2021 ◽  
Vol 34 (3) ◽  
pp. 9i-9i
Author(s):  
Michael Allen
Keyword(s):  
Click Beetles

First Fossil Click Beetles from the Middle Jurassic of Inner Mongolia, China (Coleoptera: Elateridae)

2009 ◽  
Vol 59 (1) ◽  
pp. 7-14 ◽  
Author(s):  
Huali Chang ◽  
Alexander G. Kirejtshuk ◽  
Dong Ren ◽  
Chungkun Shih
Keyword(s):  
Middle Jurassic ◽  
Inner Mongolia ◽  
Click Beetles

Physical exclusion of adult click beetles from wheat with an exclusion trench

2012 ◽  
Vol 86 (1) ◽  
pp. 77-83 ◽  
Author(s):  
Robert S. Vernon ◽  
Willem G. van Herk
Keyword(s):  
Click Beetles

Three strategies of cold tolerance in click beetles (Coleoptera, Elateridae)

2013 ◽  
Vol 450 (1) ◽  
pp. 168-172 ◽  
Author(s):  
D. I. Berman ◽  
A. N. Leirikh ◽  
E. P. Bessolitzina
Keyword(s):  
Cold Tolerance ◽  
Click Beetles

False Click Beetles

2008 ◽  
pp. 1413-1413
Author(s):  
E. S. Krafsur ◽  
R. D. Moon ◽  
R. Albajes ◽  
O. Alomar ◽  
Elisabetta Chiappini ◽  
...  
Keyword(s):  
Click Beetles

scholarly journals Firefly genomes illuminate parallel origins of bioluminescence in beetles

2017 ◽  
Author(s):  
Timothy R. Fallon ◽  
Sarah E. Lower ◽  
Ching-Ho Chang ◽  
Manabu Bessho-Uehara ◽  
Gavin J. Martin ◽  
...  
Keyword(s):  
Firefly Luciferase ◽  
Chemical Defenses ◽  
Photinus Pyralis ◽  
Click Beetles ◽  
Origin And Evolution ◽  
The North ◽  
Click Beetle ◽  
Light Organs ◽  
The Caribbean ◽  
Shed Light

AbstractFireflies and their fascinating luminous courtships have inspired centuries of scientific study. Today firefly luciferase is widely used in biotechnology, but the evolutionary origin of their bioluminescence remains unclear. To shed light on this long-standing question, we sequenced the genomes of two firefly species that diverged over 100 million-years-ago: the North AmericanPhotinus pyralisand JapaneseAquatica lateralis.We also sequenced the genome of a related click-beetle, the CaribbeanIgnelater luminosus,with bioluminescent biochemistry near-identical to fireflies, but anatomically unique light organs, suggesting the intriguing but contentious hypothesis of parallel gains of bioluminescence. Our analyses support two independent gains of bioluminescence between fireflies and click-beetles, and provide new insights into the genes, chemical defenses, and symbionts that evolved alongside their luminous lifestyle.One Sentence Summary:Comparative analyses of the first linkage-group-resolution genomes of fireflies and related bioluminescent beetles address long-standing questions of the origin and evolution of bioluminescence and its associated traits.

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