Helophorus (Mesosperchus) tarsalis Ponomarenko 1977 (water scavenger beetle)

Insecta - Coleoptera - Helophoridae

Alternative combination: Mesosperchus tarsalis

Synonym: Mesohelophorus elongatus Ponomarenko 1990

Full reference: A. G. Ponomarenko. 1977. Suborder Adephaga, Polyphaga Incertae Sedis, Infraorder Staphyliniformia, in Mezozoiskie zhestkokryiye. Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta 161:17-119

Belongs to Helophorus (Mesosperchus) according to M. Fikáček et al. 2012

See also Ponomarenko 1977 and Ponomarenko 1990

Sister taxa: Helophorus (Mesosperchus) costalis, Helophorus (Mesosperchus) gracilis, Helophorus (Mesosperchus) inceptivus, Helophorus (Mesosperchus) yixianus

Type specimens:

  • Helophorus (Mesosperchus) tarsalis: PIN 3015/367, an exoskeleton. Its type locality is Unda (PIN collection 3015), which is in a Tithonian lacustrine - small horizon in the Glushkovo Formation of the Russian Federation.
  • Mesohelophorus elongatus: PIN 3063/735, an exoskeleton. Its type locality is Daya locality (PIN collection 3063), which is in a Tithonian terrestrial horizon in the Glushkovo Formation of the Russian Federation.

Ecology:

Distribution:

• Cretaceous of the Russian Federation (3 collections)

• Jurassic of the Russian Federation (7)

Total: 10 collections including 11 occurrences

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Specimen images are retrieved through the ePANDDA API.


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