scholarly journals A new species of Xyletinus Latreille, 1809 (Coleoptera: Ptinidae: Xyletininae) from Eocene Baltic amber, with a key to known fossil species

2021 ◽  
Vol 17 (1) ◽  
pp. 179-184
Author(s):  
A. Bukejs ◽  
◽  
V.I. Alekseev ◽  
J. Háva ◽  
◽  
...  
Zootaxa ◽  
2021 ◽  
Vol 5020 (2) ◽  
pp. 328-336
Author(s):  
MASSIMO OLMI ◽  
DMITRY V. VASILENKO ◽  
LEONARDO CAPRADOSSI ◽  
EVGENY E. PERKOVSKY ◽  
ADALGISA GUGLIELMINO

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.  


Zootaxa ◽  
2018 ◽  
Vol 4500 (1) ◽  
pp. 146
Author(s):  
ZI-WEI YIN ◽  
CHEN-YANG CAI

A new species of the extinct scydmaenine genus Euroleptochromus Jałoszyński (Mastigitae: Leptochromini), E. tuberculatus Yin & Cai, sp. nov., is described from Eocene Baltic amber. It can be separated from the two previously known congeners by the different proportions of the body parts and spination of the profemur, and more importantly, lack of an elongate postgenal process of the head. Our finding demonstrates for the first time a notable variability of the postgenal structures within Euroleptochromus. 


2009 ◽  
Vol 40 (2) ◽  
pp. 201-207 ◽  
Author(s):  
Lars Krogmann ◽  
John Jennings

AbstractFossil species of Pristaulacus are uncommon, with just two known species, P. mandibularis Brues and P. praevolans Brues from Baltic amber, and three species, P. bradleyi (Brues), P. rohweri Brues and P. secundus (Cockerell), from the Florissant fossil beds, Colorado, USA. Here we provide a detailed description of Pristaulacus velteni sp.n., the third fossil species known from Baltic amber.


Zootaxa ◽  
2021 ◽  
Vol 5082 (2) ◽  
pp. 177-184
Author(s):  
MAXIM V. NABOZHENKO ◽  
ANDRIS BUKEJS

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.  


2021 ◽  
Vol 4 (3) ◽  
Author(s):  
CORENTIN JOUAULT ◽  
FRÉDÉRIC LEGENDRE ◽  
FABIEN L. CONDAMINE ◽  
ANDRÉ NEL

Examination of Baltic amber Plecoptera reveals a new species of Isoperla: Isoperla baltica sp. nov. The placement of this new species is supported by an in-depth comparison of apomorphies supporting families, subfamilies, and suborders. Contrary to previous descriptions of many fossil species, we took advantage of the good preservation of the genitalia to describe and compare this new species to its extant congeners. Finally, we discuss the usefulness and limitations of relying on wing venation to identify diagnostic characters in Plecoptera by figuring a specimen of Pteroliriope sinitshenkovae Cui, Béthoux, Kondratieff, Shih & Ren, 2016 with numerous crossveins and an original organization of forewing veins.


2011 ◽  
Vol 80 (4) ◽  
pp. 779-800 ◽  
Author(s):  
Elżbieta Sontag ◽  
Ryszard Szadziewski

Biting midges (Diptera: Ceratopogonidae) in Eocene Baltic amber from the Rovno region (Ukraine) The paper presents the results of an examination of 714 biting midges (Diptera: Ceratopogonidae) preserved in Baltic amber from the Rovno deposits in Ukraine. A new species - Leptoconops rovnensis sp. n. - is described and illustrated. 29 of the fossil species reported here have already been described from other deposits of Baltic amber: 26 of these were also found in amber from the Gulf of Gdańsk and 18 in amber from Bitterfeld (Saxony). The most common genera of biting midges in Ukrainian amber are also found in amber from Bitterfeld and the Gulf of Gdańsk, and with very much the same frequencies. The results indicate that the faunas of Ceratopogonidae enclosed in amber from Rovno, Bitterfeld and the Baltic are very similar, showing that they inhabited similar palaeoenvironments in the same palaeogeographic region.


2013 ◽  
Vol 82 (4) ◽  
pp. 317-325 ◽  
Author(s):  
Christel Hoffeins ◽  
Andrzej J. Woźnica

ABSTRACT Eopseudopomyza szadziewskii sp. n. is described from Baltic amber. A series of Eopseudopomyza kuehnei is examined and the male is described for the first time. A key to the fossil species is presented. The taxonomic position and relationship of the genus Eopseudopomyza HENNIG, 1971 within the Pseudopomyzidae is discussed.


2013 ◽  
Vol 47 (6) ◽  
pp. 43-48
Author(s):  
T. A. Sergi ◽  
E. E. Perkovsky ◽  
H.-P. Reike

Abstract Based on a fossil specimen from Late Eocene Baltic amber, Revelieria groehni Sergi, Perkovsky et Reike, sp. n., a new species is described. It is the first fossil species of the genus Revelieria Perris, 1869. The new species clearly differs from extant R. californica and R. genei in the following characters: eyes more large and convex; antennal insertion located more close to eye; temples very short; metasternum longer; fore tibia evenly curved inwards.


2020 ◽  
Vol 3 (6) ◽  
pp. 614-622
Author(s):  
CORENTIN JOUAULT ◽  
ANDRÉ NEL

Acropiesta perrichoti sp. nov., a new belytine wasp is described based on a well preserved male specimen from Eocene Baltic amber. This is the second fossil species of this extant genus, known already from the same amber deposit by Acropiesta janzeni Buhl, 2002.


Zootaxa ◽  
2009 ◽  
Vol 2144 (1) ◽  
pp. 65-68 ◽  
Author(s):  
DAVID PENNEY

The Plectreuridae is a relatively small, ecribellate, haplogyne spider family consisting of only two extant genera. Kibramoa Chamberlin has seven described species restricted to the USA and Mexico (Gertsch 1958) and Plectreurys Simon is known from 22 species, with similar distributions (Gertsch 1958, Jiménez 2006), but also including Cuba and Costa Rica (Alayón 1993, 2003). In addition, a single fossil species Palaeoplectreurys baltica Wunderlich, known only from the holotype, has been described from the Eocene Baltic amber of Europe (Wunderlich 2004). Additional fossils are known from the Jurassic of China and these are currently being described by Selden (pers. comm. 2009), who also questions the placement of Palaeoplectreurys Wunderlich in this family. Thus, the extant forms may represent relicts of a family more widespread in the past. Little is known about the biology of this family, although they are unusual among ecribellate haplogynes in possessing eight, rather than six eyes. They are nocturnal, hunting spiders, which live in a silken tube that they seldom leave, rather like the closely related Segestriidae (Gertsch 1958). However, males leave their tube upon maturity to go in search of females, at which point they become more susceptible to entrapment in tree resin seeps (Penney 2002). The tibia of leg 1 in males of Plectreurys has a distinctive stout retrolateral process towards the distal end, which bears a strong spine. These coupling spurs, which are absent in Kibramoa and Palaeoplectreurys are presumed to be used for restraining or positioning the female during mating.


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