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Species Ligyrus relictus

Scarabaeidae - pronotum - Ligyrus relictus

Rhinoceros/Dynastinae? - Ligyrus relictus

Black Rhinoceros beetle - Ligyrus relictus

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Coleoptera (Beetles)

Suborder Polyphaga

Superfamily Scarabaeoidea

Family Scarabaeidae (Scarab Beetles)

Subfamily Dynastinae (Rhinoceros Beetles)

Tribe Pentodontini

Genus Ligyrus

Species relictus (Ligyrus relictus)

Synonyms and other taxonomic changes

≡Tomarus relictus (Say 1825)

Explanation of Names

Ligyrus (Ligyrodes) relictus (Say 1825)

Size

16.7–22.2 mm(1)

Identification

Protibia with 3 teeth and basal denticle, without denticle between basal and second tooth; parameres with ventral teeth acute and long(1)

Range

e.NA (NS‒SK‒MT to VA‒AL‒TX)(2)(3)

Life Cycle

larvae under piles of straw and decaying hay or dung, eggs laid Apr‒May, adults emerge in Aug and overwinter in soil(1)

Remarks

may be found on lawns but are not turf feeders

Works Cited

1.	Cladistic analysis reveals polyphyly of Tomarus (Coleoptera: Scarabaeidae: Dynastinae) new classification and taxonomic revision López-García, M.M. and C. Deloya. 2022. Zootaxa 5211(1): 1-119.

2.	The Dynastine Scarab Beetles of the USA and Canada (Coleoptera: Scarabaeidae: Dynastinae) Brett C. Ratcliffe & Ronald D. Cave. 2017. University of Nebraska State Museum, Vol 30, 298 pp.

3.	Checklist of beetles (Coleoptera) of Canada and Alaska. Second edition Bousquet Y., Bouchard P., Davies A.E., Sikes D.S. 2013. ZooKeys 360: 1–402.

Contributed by Phillip Harpootlian on 9 September, 2006 - 1:04pm
Additional contributions by Steve Nanz, Robin McLeod, Mike Quinn, v belov
Last updated 12 April, 2024 - 2:07pm

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