New Genus of the Subfamily Geotrupinae (Coleoptera: Scarabaeoidea: Geotrupindae) from the Jehol Biota

Nikolajev, G.V.; Ren, Dong

doi:10.1111/j.1755-6724.2010.00260.x

Cited by 8 publications

(3 citation statements)

References 4 publications

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“…Representatives of the Geotrupidae were probably coprophagous: Parageotrupes incanus from the Yixian Formation [78] , and Cretogeotrupes convexus and Aphodius (s.l.) (Aphodiinae) from Baissa [77] , [79] .…”

Section: Discussionmentioning

confidence: 99%

Cockroaches Probably Cleaned Up after Dinosaurs

et al. 2013

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Dinosaurs undoubtedly produced huge quantities of excrements. But who cleaned up after them? Dung beetles and flies with rapid development were rare during most of the Mesozoic. Candidates for these duties are extinct cockroaches (Blattulidae), whose temporal range is associated with herbivorous dinosaurs. An opportunity to test this hypothesis arises from coprolites to some extent extruded from an immature cockroach preserved in the amber of Lebanon, studied using synchrotron X-ray microtomography. 1.06% of their volume is filled by particles of wood with smooth edges, in which size distribution directly supports their external pre-digestion. Because fungal pre-processing can be excluded based on the presence of large particles (combined with small total amount of wood) and absence of damages on wood, the likely source of wood are herbivore feces. Smaller particles were broken down biochemically in the cockroach hind gut, which indicates that the recent lignin-decomposing termite and cockroach endosymbionts might have been transferred to the cockroach gut upon feeding on dinosaur feces.

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Section: Discussionmentioning

confidence: 99%

Cockroaches Probably Cleaned Up after Dinosaurs

et al. 2013

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“…One of the most common invertebrate coprophages are dung beetles (Scarabaeoidea); a cosmopolitan superfamily of insects which evolved a detritivorous life-style several million years ago 7 – 10 . Although the ancient detritivorous feeding behaviour (using all organic material, including dung, litter, humus and carcasses) still exists in many families of Scarabaeoidea 11 , 12 , the increased occurrence of megafauna during the lower Jurassic has provided a new exploitable resource in large quantities, facilitating the evolution of dung beetles towards coprophagy 13 .…”

Section: Introductionmentioning

confidence: 99%

Nutrient quality of vertebrate dung as a diet for dung beetles

Frank

Brückner

Hilpert

et al. 2017

Sci Rep

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At the basis of a trophic web, coprophagous animals like dung beetles (Scarabaeoidea) utilize resources that may have advantages (easy gain and handling) as well as drawbacks (formerly processed food). Several studies have characterized the nutrients, e.g. C/N ratios and organic matter content, for specific types of dung. However, a comparative approach across dung types and feeding guilds of dung producers, and relationships between dung nutrients and preferences by coprophages, have been missing. Hence, we analyzed water content, C/N ratio, amino acid, neutral lipid fatty acid, free fatty acid and sterol composition and concentrations in dung from 23 vertebrates, including carnivore, omnivore and herbivore species. Our analyses revealed significant differences among the three vertebrate feeding guilds for most nutritional parameters. Although formerly processed, dung grants sufficient amounts of essential nutrients for insects. We tested whether nutrients can explain the dung beetles’ preferences in a field experiment, using 12 representative dung types in baits that were installed in 27 forests and 27 grasslands. Although consistent preferences for specific dung types were pronounced, the nutritional composition did not predict the variation in attractiveness of these dung diets, suggesting a primary role of dung volatiles irrespective of food quality.

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“…Additionally, some information on the scarabaeoid beetles of the subfamily Aphodiinae that occur in Tajikistan was included in the studies of Protzenko (1968) , Nikritin (1973) , and Nikolajev (1987) . Nikolajev (2003) published another work of a great importance for recognising the fauna of the family Geotrupidae ; the paper included species of the genus Lethrus Scopoli, 1777 ( Lethrinae ), which constitutes a significant share in the local beetle fauna. Three years later, an extensive monograph containing comprehensive information on the subfamily Scarabaeinae ( Scarabaeini , Gymnopleurini , Onthophagini , Onitini ) of Russia and adjacent countries, including Tajikistan, was released ( Kabakov 2006 ).…”

Section: Introductionmentioning

confidence: 99%

New and interesting findings of scarab beetles (Coleoptera, Scarabaeoidea) from Tajikistan

Byk¹,

Matusiak²,

Taszakowski³

et al. 2020

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We report on new findings of nearly 50 species that represent four families of the superfamily Scarabaeoidea, which were collected during an expedition to western Tajikistan that was carried out in June and July 2014. Rhyssemodes transcaspicus Rakovič, 1982 is recorded from the country for the first time. Moreover, we describe and illustrate the differences in the external morphology between Euonthophagus gibbosus (Scriba, 1790) and E. koshantschikoffi (Reitter, 1891), the latter of which has a doubtful systematic position. In the collected material of approximately 1,000 specimens, more than 90% of the species and 95% of the individuals belong to the family Scarabaeidae. The other species represent the families Geotrupidae, Glaphyridae, and Hybosoridae.

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New Genus of the Subfamily Geotrupinae (Coleoptera: Scarabaeoidea: Geotrupindae) from the Jehol Biota

Abstract: Parageotrupes incanus gen. et sp. nov. (Scarabaeoidea: Geotrupidae: Geotrupinae) is described and illustrated from the Yixian Formation of western Liaoning province, China.

Cited by 8 publications

References 4 publications

Cockroaches Probably Cleaned Up after Dinosaurs

Cockroaches Probably Cleaned Up after Dinosaurs

Nutrient quality of vertebrate dung as a diet for dung beetles

New and interesting findings of scarab beetles (Coleoptera, Scarabaeoidea) from Tajikistan

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