Stephanopachys ambericus Zahradník et Háva, 2015 (Coleoptera: Bostrichidae) from Eocene Danish amber and Baltic amber from Latvia in collection of the Natural History Museum of Denmark

Abstract

Stephanopachys ambericus Zahradník & Háva, 2015 from the subfamily Dinoderinae is recorded from Eocene Danish amber and Baltic amber from Latvia for the first time. Diagnosis of this species is made, and illustrations are given. Fossil records of auger beetles are discussed.

The first fossil of subgenus Neomicrambe (Coleoptera: Cryptophagidae: Micrambe) from Danish amber

“…As was supposed earlier (Legalov et al 2024), the high degree of similarity between the Danish and Baltic amber faunas of a particular group may depend on the predominance of temperate elements in their compositions and/or a close connection with the amber-producing tree and the amber forest community as a whole. Aphids are the good example of a temperate group (Perkovsky & Wegierek 2018) closely connected with the amber forest and with a high degree of similarity between the Danish and Baltic amber faunas as discussed by Legalov et al (2024). Another well studied example of temperate elements that have a high degree of similarity between Danish and Baltic amber faunas are the many taxa of biting midges (Perkovsky 2017).…”

“…Late Eocene Danish amber was reviewed by Heie (1967), Larsson (1978), Nadein et al (2016), , , Anisyutkin et al (2024), Belokobylskij et al (2024aBelokobylskij et al ( , 2024b, Lyubarsky et al (2024), andLegalov et al (2024) and references therein. Larsson (1978) supposed that the amber was redeposited to Miocene lignites of Jutland from South Swedish Eocene forests.…”

The new species and two new records of Polycentropodidae (Insecta: Trichoptera) from Eocene Rovno amber

“…According to previously published hypothesis (Legalov et al 2024), the maximal species share in the Baltic and other fossil resins in Europe among the aquatic arthropods should be in the extant Holarctic genera widespread in the temperate regions. All extant European and North American species of Holocentropus reach the high latitudes with cold climate; H. picicornis (Stephens, 1836) is known from Northern Europe to Chukotka Peninsula, H. insignis Martynov, 1924 from Europe to Yakutia in Siberia, with North American part of areal from Alaska to NE United States.…”

The first record of the highly derived genus Oligoneurus Szépligeti, 1902 (Hymenoptera, Braconidae, Ichneutinae, Muesebeckiini) from Eocene Danish amber with description of a new species

“…Priabonian Danish amber of late Eocene age (34-37 Mya) was reviewed by Larsson (1978), Nadein et al (2016), , , Anisyutkin at al. (2024), Legalov et al (2024), Lyubarsky et al (2024) and references therein.…”