A new fossil species of Pycnomerus Erichson (Coleoptera: Zopheridae) from Baltic amber, and a replacement name for a Recent North American congener

Zootaxa ◽  
2019 ◽  
Vol 4550 (4) ◽  
pp. 565 ◽  
Author(s):  
ANDRIS BUKEJS ◽  
VITALII I. ALEKSEEV ◽  
DAVID M.L. COOPER ◽  
GAVIN A. KING ◽  
RYAN C. MCKELLAR
Keyword(s):  
New Species ◽  
North American ◽  
Fossil Record ◽  
Baltic Amber ◽  
Micro Ct ◽  
Fossil Species ◽  
X Ray ◽  
Extant Species ◽  
The Baltic

Based on a well-preserved specimen from Eocene Baltic amber, the second fossil species belonging to the genus Pycnomerus Erichson (Coleoptera: Zopheridae: Zopherinae), P. agtsteinicus Bukejs, Alekseev & McKellar sp. nov. is described and illustrated using synchrotron X-ray micro-CT observations. The new species adds to the sparse fossil record of Pycnomerus, which consists of the Baltic amber discoveries, and only four subfossil records in sediments that are less than one million years old. As part of this work, the new replacement name Pycnomerus lordi Bukejs, Alekseev & McKellar nom. nov. is also established for the extant species Pycnomerus sulcicollis LeConte, 1863 [non Pycnomerus sulcicollis (Germar, 1824)]. 

scholarly journals A new species of <i>Lacinius</i> in amber (Arachnida: Opiliones)

Fossil Record ◽  
2014 ◽  
Vol 18 (1) ◽  
pp. 37-42 ◽  
Author(s):  
P. G. Mitov ◽  
J. A. Dunlop ◽  
D. Penney
Keyword(s):  
New Species ◽  
Fossil Record ◽  
Baltic Amber ◽  
Extinct Species ◽  
Unique Character ◽  
Extant Species ◽  
The Baltic ◽  
A New Species

Abstract. A new specimen of Lacinius Thorell, 1876; (Opiliones: Phalangiidae) from Eocene Baltic amber is described. We interpret it as conspecific with a slightly younger record from the German Bitterfeld amber, originally referred to as the extant species L. erinaceus Staręga, 1966. Our new specimen reveals pedipalpal apophyses on both the patella and the tibia, features which we can now confirm in the Bitterfeld fossil too. This unique character combination for the genus justifies a new, extinct species: Lacinius bizleyi sp. nov. The Baltic amber inclusion dates to ca. 44–49 Ma, and is thus the oldest putative example of Lacinius in the fossil record. It is a further example of an arachnid species shared between Baltic and Bitterfeld amber.

The invisibile becomes visible: X-ray micro-CT reconstruction of Aneurus damzeni sp. nov. (Hemiptera: Heteroptera: Aradidae) from Eocene Baltic amber

Zootaxa ◽  
2021 ◽  
Vol 4950 (1) ◽  
pp. 189-195
Author(s):  
ERNST HEISS ◽  
KRISTAPS KAIRIŠS ◽  
ANDRIS BUKEJS
Keyword(s):  
Morphological Characters ◽  
Baltic Amber ◽  
Micro Ct ◽  
Ct Reconstruction ◽  
Micro Computed Tomography ◽  
Fossil Species ◽  
Burmese Amber ◽  
X Ray ◽  
Extant Species ◽  
A New Species

The subfamily Aneurinae of the flat bug family Aradidae (Hemiptera: Heteroptera) contains about 150 extant species assigned to seven genera, and seven fossil species of which six were described from Eocene Baltic amber and one from Cretaceous Burmese amber. A new species Aneurus damzeni sp. nov. from Baltic amber is described and illustrated using X-ray micro-computed tomography (μCT) reconstructing concealed morphological characters. A key to all five extant and fossil Aneurinae species with triangular scutellum is provided. 

scholarly journals The First Ptilodactyla Illiger, 1807 (Coleoptera: Dryopoidea: Ptilodactylidae) Described from Eocene Baltic Amber

Biology ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 877
Author(s):  
Robin Kundrata ◽  
Gabriela Packova ◽  
Kristaps Kairišs ◽  
Andris Bukejs ◽  
Johana Hoffmannova ◽  
...  
Keyword(s):  
New Species ◽  
Fossil Record ◽  
Microcomputed Tomography ◽  
Baltic Amber ◽  
X Ray ◽  
Diagnostic Characters ◽  
The Third ◽  
Extant Species ◽  
A New Species

The beetle family Ptilodactylidae contains more than 500 extant species; however, its fossil record is scarce and remains understudied. In this study, we describe a new species of Ptilodactylidae, Ptilodactyla eocenica Kundrata, Bukejs and Blank, sp. nov., based on a relatively well-preserved specimen from Baltic amber. We use X-ray microcomputed tomography to reconstruct its morphology since some of the principal diagnostic characters have been obscured by opaque bubbles. It is the third ptilodactylid species described from Baltic amber, and the first one belonging to the subfamily Ptilodactylinae. Additionally, we summarize the classification, diversity, and distribution of both extinct and extant Ptilodactylidae.

A new species of anapid spider (Araneae: Araneoidea, Anapidae) in Eocene Baltic amber, imaged using phase contrast X-ray computed micro-tomography

Zootaxa ◽  
2011 ◽  
Vol 2742 (1) ◽  
pp. 60 ◽  
Author(s):  
DAVID PENNEY ◽  
ANDREW MCNEIL ◽  
DAVID I. GREEN ◽  
ROBERT BRADLEY ◽  
YURI M. MARUSIK ◽  
...  
Keyword(s):  
New Species ◽  
Phase Contrast ◽  
Baltic Amber ◽  
X Ray ◽  
The Family ◽  
X Ray Computed ◽  
Micro Tomography ◽  
The Baltic ◽  
A New Species ◽  
Eocene Amber

A new species of the extant spider family Anapidae is described from a fossil mature male in Eocene amber from the Baltic region and tentatively assigned to the genus Balticoroma Wunderlich, 2004. Phase contrast X-ray computed micro-tomography was used to reveal important features that were impossible to view using traditional microscopy. Balticoroma wheateri new species is easily diagnosed from all other anapids by having clypeal extensions that run parallel to the ectal surface of the chelicerae and in having the metatarsus of the first leg highly reduced and modified into what is presumably a y-shaped clasping structure. Although only a single extant anapid species occurs in northern Europe, the family was diverse in the Eocene. The discovery of yet another anapid species in Baltic amber supports the idea that Eocene European forests may have been a hotspot of evolution for this family of spiders.

A new species of Lonchodryinus (Hymenoptera, Dryinidae) from Upper Eocene Baltic amber

Zootaxa ◽  
2021 ◽  
Vol 5020 (2) ◽  
pp. 328-336
Author(s):  
MASSIMO OLMI ◽  
DMITRY V. VASILENKO ◽  
LEONARDO CAPRADOSSI ◽  
EVGENY E. PERKOVSKY ◽  
ADALGISA GUGLIELMINO
Keyword(s):  
New Species ◽  
Fore Wing ◽  
Baltic Amber ◽  
Upper Eocene ◽  
Fossil Species ◽  
Extant Species ◽  
A New Species

Lonchodryinus groehni sp. nov. (Hymenoptera: Chrysidoidea: Dryinidae) is described from Baltic amber. The new species is close to L. balticus Olmi & Guglielmino, 2012, but it can be distinguished for the different OPL/POL ratio and 2r-rs&Rs vein of the fore wing. A key to the fossil species of Lonchodryinus and a comparison with the extant species L. ruficornis (Dalman, 1818) are presented.  

A new fossil species of the genus Limodromus Motschulsky, 1850 (Coleoptera: Carabidae: Platynini) from Baltic amber with remarks on its death process

2018 ◽  
Vol 49 (4) ◽  
pp. 399-408
Author(s):  
Sara Gamboa ◽  
Vicente M. Ortuño
Keyword(s):  
New Species ◽  
Fossil Record ◽  
Species Group ◽  
Morphological Features ◽  
Baltic Amber ◽  
Sister Taxon ◽  
Death Process ◽  
Fossil Species

Limodromus emetikos sp. n. (Coleoptera: Carabidae) is described and illustrated from Baltic amber (Eocene). Based on its morphological features, the new species is considered a sister taxon of the extant Holarctic assimilis species group. Furthermore, the specimen described here could represent a case of stress-triggered regurgitation, which would represent the first fossil record of such a process in beetles.

A second fossil species of the enigmatic rove beetle genus Charhyphus in Eocene Baltic amber, with implications on the morphology of the female genitalia (Coleoptera: Staphylinidae: Phloeocharinae)

2021 ◽  
pp. 1-12
Author(s):  
Shûhei YAMAMOTO ◽  
Alexey V. SHAVRIN ◽  
Kristaps KAIRIŠS
Keyword(s):  
New Species ◽  
Body Part ◽  
The Body ◽  
Baltic Amber ◽  
Micro Computed Tomography ◽  
Single Male ◽  
Fossil Species ◽  
Rove Beetles ◽  
Rove Beetle ◽  
Extant Species

ABSTRACT Phloeocharinae is a small and likely non-monophyletic subfamily of rove beetles. The enigmatic genus Charhyphus Sharp, 1887 has long been placed in Phloeocharinae, whereas recent studies have found it to be phylogenetically very distant from the core members of this subfamily, suggesting the possibility that it actually deserves its own separate subfamily status. So far, the sole definitive fossil record for Charhyphus is known based on a single male from Eocene Baltic amber as represented by †Charhyphus balticus Shavrin, 2020. Here, we describe and illustrate another new Charhyphus species, †Charhyphus serratus sp. nov. Yamamoto & Shavrin, from Baltic amber based on a well-preserved female fossil. Considering the general proportions of the body and the head, this new species is most similar to †C. balticus. The new species differs from all known species by the development of strong serration of the lateral edges of the pronotum and features of the shape of the apical margin of the mesoventrite. By using X-ray micro-computed tomography, we succeeded in visualising not only the general habitus but also each individual body part, recovering a previously undocumented sclerite on the female internal genital segments in the genus. Morphological features of extinct and extant species of Charhyphus are briefly discussed. Figures of all extant Charhyphus species and a key for the genus are also provided. Our study is important for considering possible higher palaeodiversity, more common occurrence, and palaeobiogeography of Charhyphus.

scholarly journals New fossil stilt-legged mites of Neophyllobius Berlese, 1886 (Acariformes, Camerobiidae) from Eocene Baltic amber

2020 ◽  
Vol 94 (4) ◽  
pp. 696-715 ◽  
Author(s):  
Mateusz Zmudzinski
Keyword(s):  
New Species ◽  
Fossil Record ◽  
Baltic Amber ◽  
Fossil Species ◽  
The Family

AbstractThe fossil record of the family Camerobiidae has been represented by only one species, Neophyllobius succineus Bolland and Magowski, 1990, described from Eocene Baltic amber. These prostigmatan mites are distinguishable by their distinctly long and slender stilt-like legs, and they are associated with aboveground vegetation where they hunt for other small invertebrates. This paper enhances the knowledge of fossil stilt-legged mites. Two new fossil species, N. electrus new species and N. glaesus new species, are described from samples of Baltic amber, and remarks on their morphology and taphonomy are provided. The discovery is complemented with a discussion on morphological singularities (the shape of the prodorsum, the location of setae h1 and h2 in living specimens, and lengths of genual setae), an anomaly of hypertrophied seta (found in the N. glaesus holotype), and some biogeographical issues.UUID: http://zoobank.org/d1602384-ae4f-4f90-b4a1-6cdedd77c9e1

scholarly journals Two Eocene species of Culiseta (Diptera: Culicidae) from the Kishenehn Formation in Montana

Zootaxa ◽  
2012 ◽  
Vol 3530 (1) ◽  
pp. 25 ◽  
Author(s):  
RALPH E. HARBACH ◽  
DALE GREENWALT
Keyword(s):  
New Species ◽  
Baltic Amber ◽  
Fossil Species ◽  
Extant Species

Culiseta kishenehn, sp. n. and Cs. lemniscata, sp. n. (Diptera: Culicidae: Culisetini) are described from compression fos-sils from the 46 million year old Kishenehn shale deposits in Montana, USA. The new species appear to share featureswith extant species of subgenera Climacura and Culicella, respectively. The antiquity of Culiseta is examined and previ-ously described Eocene fossil species are discussed. Eoaedes gen. n. and Aetheapnomyia gen. n. are established for Aedes damzeni Podėnas and Ae. hoffeinsorum Szadziewski, two Eocene fossil species in Baltic amber.

scholarly journals A fossil species of the primitive mymarid genus Borneomymar (Hymenoptera: Mymaridae) in Eocene Baltic amber

2013 ◽  
pp. 1 ◽  
Author(s):  
Michael S. Engel ◽  
Ryan C. McKellar ◽  
John T. Huber
Keyword(s):  
New Species ◽  
Middle Eocene ◽  
Baltic Amber ◽  
Fossil Species ◽  
Extant Species

A new fossil species of fairyfly (Hymenoptera: Chalcidoidea: Mymaridae) is described and figured from a well-preserved female in middle Eocene (Lutetian) Baltic amber as Borneomymar pankowskiorum Engel, McKellar, & Huber, new species.  This species represents the fourth genus from Baltic amber whose extant species now occur only in southeastern Asia, Australia and Madagascar.

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