A new Symphoromyia in the Middle Eocene Baltic amber (Diptera: Rhagionidae)

Zootaxa ◽  
2020 ◽  
Vol 4820 (2) ◽  
pp. 373-378
Author(s):  
VALERIE NGO-MULLER ◽  
ANDRE NEL
Keyword(s):  
Middle Eocene ◽  
Baltic Amber ◽  
Fossil Species ◽  
Extant Species

Symphoromyia clerci sp. nov. is described from the Eocene Baltic amber. Even if it has nearly all the characters of the extant species of Symphoromyia subgenus Symphoromyia, it differs from these flies in the short scape, as long as the pedicel (at least twice as long in extant taxa). This fossil is twice as large as those that were previously described from the same amber. These taxa need to be revised to verify their generic attribution. Symphoromyia clerci sp. nov. is the second fossil species attributable to this genus on the basis of ‘modern’ characters. The extant Symphoromyia are frequently hematophagous on mammals, suggesting a similar biology for the Eocene representatives of this genus.

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.

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 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 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.

A new fossil species of the Australian endemic genus Peradenia Naumann & Masner (Hymenoptera: Proctotrupoidea, Peradeniidae) from Baltic Amber

2001 ◽  
Vol 32 (2) ◽  
pp. 191-194 ◽  
Author(s):  
Jens-Wilhelm Janzen ◽  
Norman F. Johnson ◽  
Luciana Musetti
Keyword(s):  
Baltic Amber ◽  
Australian Capital Territory ◽  
Fossil Species ◽  
Southeastern Australia ◽  
Extant Species ◽  
The Family ◽  
The Status ◽  
Subfamily Classification ◽  
A New Species

AbstractThe family Peradeniidae (Hymenoptera: Proctotrupoidea) is represented by two rare extant species from southeastern Australia (Australian Capital Territory, Victoria, Tasmania). A new species, Peradenia galerita sp. n., is described from Eocene Baltic amber. The fossil species is very similar to the living Perndenia, but has the short metasomatic petiole typical of most Proctotrupoidea. The subfamily classification of Heloridae proposed by Rasnitsyn and the status of Peradeniidae are briefly reviewed. The subfamily Mesohelorinae Rasnitsyn, 1990 is a junior synonym of Protohelorinae Rasnitsyn, 1980 (syn. n.).

The first fossilized comb-clawed beetle of the genus Asiomira Dubrovina, 1973 (Coleoptera: Tenebrionidae: Alleculinae) from Baltic Amber and notes on the distribution of extant species of the genus

Zootaxa ◽  
2021 ◽  
Vol 5082 (2) ◽  
pp. 177-184
Author(s):  
MAXIM V. NABOZHENKO ◽  
ANDRIS BUKEJS
Keyword(s):  
New Species ◽  
Body Size ◽  
Baltic Amber ◽  
Mountain Areas ◽  
Fossil Species ◽  
Similar Shape ◽  
Modern Distribution ◽  
Extant Species ◽  
A New Species ◽  
Coleoptera Tenebrionidae

A new species of comb-clawed beetles of the genus Asiomira Dubrovina, 1973 (A. dubrovinae sp. n.) is described from the Eocene Baltic amber. This newly descovered fossil species displays typical generic characters and is the most similar to the extant Asiomira ophtalmica (Seidlitz, 1896). Both species share a similar shape of the pronotum and the flattened posterior angles of the pronotal disc. Asiomira dubrovinae sp. n. can be distinguished from A. ophtalmica by the smaller body size (4.8 mm in contrast to 6–8.12 mm), more serrate antennomeres, and finer and sparser pronotal punctation. Extant species of the genus are distributed in the arid landscapes of Central Asia with the highest diversity occurring in Tajikistan. Therefore the discovery of a new fossil species from Eocene Baltic amber suggests that Asiomira could have a wider range, and the modern distribution of this group is the result of a later secondary expansion of the ancestral representatives that survived in mid-mountain areas with arboreal and shrub vegetation. Relevant corrections to the distribution of extant species, Asiomira ophtalmica (Seidlitz, 1896) and Asiomira firjusana (Dubrovina, 1973), are given.  

A new biting midge of the genus Forcipomyia Meigen, 1818 from Miocene Ethiopian amber (Diptera: Ceratopogonidae)

2021 ◽  
Vol 4 (5) ◽  
Author(s):  
RYSZARD SZADZIEWSKI ◽  
ELŻBIETA SONTAG ◽  
MADELINE V. PANKOWSKI
Keyword(s):  
Middle Eocene ◽  
Baltic Amber ◽  
Early Eocene ◽  
Gulf Of Gdańsk ◽  
Biting Midges ◽  
Fossil Species ◽  
Biting Midge ◽  
Dominican Amber ◽  
The World ◽  
Sakhalin Amber

Biting midges (Ceratopogonidae) are a relatively well-studied family of nematocerous flies distributed worldwide, including 6,206 extant and 296 fossil species. To date, 1,146 extant and 32 fossil species in the genus Forcipomyia have been recorded in the world (Borkent & Dominiak, 2020). Biting midges of the subgenus Forcipomyia s. str. are indicative of forests because their larvae and pupae usually live under the bark of rotting trees (Szadziewski, 2018). The oldest records of the genus are from the Eocene. Forcipomyia are reported from early Eocene Fushun amber (one species; Hong, 1981; Stebner et al., 2016; Szadziewski, 2018; Krzemiński et al., 2019), early Eocene Cambay amber (unnamed, Stebner et al., 2017), middle Eocene Sakhalin amber (one species, Szadziewski & Sontag, 2013), Eocene Baltic amber from the Gulf of Gdańsk, Rovno and Bitterfeld (21 species; Szadziewski, 1988, Szadziewski, 1993, Sontag & Szadziewski, 2011), Miocene Dominican amber (10 species, Szadziewski & Grogan, 1998) and Miocene Mexican amber (unnamed, Szadziewski & Grogan, 1996).

scholarly journals Taxonomic description and phylogenetic placement of two new species of Spalangiopelta (Hymenoptera: Pteromalidae: Ceinae) from Eocene Baltic amber

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10939
Author(s):  
Marina Moser ◽  
Roger A. Burks ◽  
Jonah M. Ulmer ◽  
John M. Heraty ◽  
Thomas van de Kamp ◽  
...  
Keyword(s):  
Single Species ◽  
3D Models ◽  
Morphological Characters ◽  
Baltic Amber ◽  
Fossil Species ◽  
Phylogenetic Placement ◽  
Taxonomic Description ◽  
Extant Species ◽  
Minimum Age ◽  
Functional Relevance

Spalangiopelta is a small genus of chalcid wasps that has received little attention despite the widespread distribution of its extant species. The fossil record of the genus is restricted to a single species from Miocene Dominican amber. We describe two new fossil species, Spalangiopelta darlingi sp. n. and Spalangiopelta semialba sp. n. from Baltic amber. The species can be placed within the extant genus Spalangiopelta based on the distinctly raised hind margin of the mesopleuron. 3D models reconstructed from µCT data were utilized to assist in the descriptions. Furthermore, we provide a key for the females of all currently known Spalangiopelta species. The phylogenetic placement of the fossils within the genus is analyzed using parsimony analysis based on morphological characters. Phylogenetic and functional relevance of two wing characters, admarginal setae and the hyaline break, are discussed. The newly described Baltic amber fossils significantly extend the minimum age of Spalangiopelta to the Upper Eocene.

Current knowledge of the family Cardiliidae (Bivalvia, Mactroidea)

2018 ◽  
Vol 92 (2) ◽  
pp. 130-145
Author(s):  
Javier H. Signorelli ◽  
J.G.M. (Han) Raven
Keyword(s):  
External Surface ◽  
Current Knowledge ◽  
Middle Eocene ◽  
Adductor Muscle ◽  
Fossil Species ◽  
Eastern Atlantic Ocean ◽  
Extant Species ◽  
Range Type ◽  
The Family ◽  
The Western Pacific

AbstractThe family Cardiliidae has been scarcely studied. It was historically placed in the superfamily Mactroidea. Members of this family are characterized by a cordiform shell with a typical mactrid hinge, posterior adductor muscle placed into a myophore and three ornamental areas on the external surface of the shell. Six extant and 14 exclusively fossil species have been previously mentioned in the literature as belonging to the genusCardilia. The geographical distribution, stratigraphic range, type material and type locality of each extant and fossil species are provided. In this work, four extant species and 11 exclusively fossil species belonging to the genusCardiliaare recognized. Extant species are from the western Pacific Ocean, Indian Ocean and eastern Atlantic Ocean, while fossil taxa are recorded from deposits of middle Eocene to late Pliocene in Europe and Asia,. One of them is formally described herein asCardilia edwardsinew species.

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)]. 

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