A Day in the Life: Diel Rhythms of Locomotor Activity in the Male Flower Chafer Beetle Valgus canaliculatus (Olivier) (Coleoptera: Scarabaeidae)

Joseph Giulian; Darrell Moore; Thomas C. Jones

doi:10.1649/0010-065X-79.1.67

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Joseph Giulianhttps://orcid.org/0000-0003-0145-1228,^1,* Darrell Moorehttps://orcid.org/0000-0002-9205-1301,¹ Thomas C. Joneshttps://orcid.org/0000-0002-9146-899X¹

¹Dept. of Biological Sciences East Tennessee State University 125 Brown Hall, Johnson City, TN 37614, USA , moored@etsu.edu, jonestc@etsu.edu

^*Corresponding author

Abstract

We determined the diel locomotor activity of the generalist florivore Valgus canaliculatus (Olivier, 1789) under controlled 12:12 h light-dark conditions. Males exhibited a diurnal activity pattern, with peak activity in mid-photophase and inactivity during scotophase. These findings indicate that photic cues alone stimulate a rhythmic, diurnal activity pattern, which likely helps these beetles better coordinate activity with resource availability to maximize foraging and dispersal strategies.

Citation Download Citation

Joseph Giulian, Darrell Moore, and Thomas C. Jones "A Day in the Life: Diel Rhythms of Locomotor Activity in the Male Flower Chafer Beetle Valgus canaliculatus (Olivier) (Coleoptera: Scarabaeidae)," The Coleopterists Bulletin 79(1), 67-71, (28 February 2025). https://doi.org/10.1649/0010-065X-79.1.67

Received: 10 September 2024; Accepted: 15 January 2025; Published: 28 February 2025

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