scholarly journals First fossil record of the mayfly family Vietnamellidae (Insecta, Ephemeroptera) from Burmese Amber confirms its Oriental origin and gives new insights into its evolution

ZooKeys ◽  
2021 ◽  
Vol 1036 ◽  
pp. 99-120
Author(s):  
Roman J. Godunko ◽  
Alexander V. Martynov ◽  
Arnold H. Staniczek

The small, monophyletic mayfly family Vietnamellidae Allen, 1984 has so far only been known from a few extant species of the genus Vietnamella Tshernova, 1972, which are all distributed in the Oriental Realm (Vietnam, Thailand, China, and India). Herein we report the first fossil record of Vietnamellidae based on a male and female imago from Mid-Cretaceous Burmese amber. We establish the new genus Burmellagen. nov. to accommodate these two new Mesozoic specimens. Their attribution to Vietnamellidae is supported by the rounded shape of the hind wings with arched outer margin, the course of thoracic sutures, and characteristics of venation, especially of MP and Cu of the forewings and associated intercalary veins of the cubital field. At the same time, Burmellagen. nov. clearly differs from Vietnamella by a diminished number of longitudinal and cross veins in the hind wings, and by the different shape of male genitalia. This first fossil record of Vietnamellidae supports an age of at least 100 Ma for this taxon.

2020 ◽  
Vol 3 (4) ◽  
pp. 338-341
Author(s):  
ANDRÉ NEL ◽  
CRISTIAN PELLA

The lacewing family Nemopteridae Burmeister, 1839 is very poorly represented in the fossil record with three Early Cretaceous genera of uncertain affinities from the Brazilian Crato Formation, one ‘mid’-Cretaceous representative of the stem group of the Crocinae Navás, 1910 in the Burmese amber, and two Cenozoic nemopterine genera Marquettia Navás, 1913 (late Eocene-early Oligocene) and Paleonemia Claisse et al., 2019 (middle Oligocene). Also two undetermined Nemopterinae are recorded from the late Eocene and the Oligocene (Lu et al., 2019a: Table 1; Claisse et al., 2019).


Zootaxa ◽  
2017 ◽  
Vol 4232 (1) ◽  
pp. 123 ◽  
Author(s):  
REZA HOSSEINI ◽  
GERASIMOS CASSIS

A new genus and new species of deraeocorine plant bug, Kalamemiris gen. nov. and Kalamemiris collessi sp. nov., is described from Australia. Illustrations of male genitalia, scanning electron micrographs of key characters of the male and female habitus, as well as male genitalic characters are provided. The diagnosis of the new genus is made in comparison to other deraeocorines of the Australian biogeographic region. 


2019 ◽  
Vol 2 (3) ◽  
pp. 262-270 ◽  
Author(s):  
ERIK TIHELKA ◽  
DIYING HUANG ◽  
CHENYANG CAI

With over 4,600 species distributed worldwide, the net-winged beetles belong among the most speciose elateroid lineages. Despite this, beetles of the family Lycidae are rare in the fossil record. A new genus and species of Lycidae, Cretolycus praecursor gen. et sp. nov., is herein described based on a single specimen preserved in mid-Cretaceous Burmese amber. Cretolycus praecursor represents the second known lycid from the Mesozoic. A new tribe, Cretolycini trib. nov., is erected for the species, characterised by 11-segmented filiform antennae, 3-segmented labial palpi with an enlarged apical palpomere, and elytra without costae. A catalogue of fossil net-winged beetles is appended.


Zootaxa ◽  
2009 ◽  
Vol 2078 (1) ◽  
pp. 34-54 ◽  
Author(s):  
DAVID A. GRIMALDI ◽  
JEFFREY M. CUMMING ◽  
ANTONIO ARILLO

A new family of eremoneuran Brachycera, the Chimeromyiidae, is proposed for two genera and eight species of a distinctive, monophyletic group of flies in 125–100 myo amber. The new family is related to the Empidoidea and basal Cyclorrhapha. Four new species of Chimeromyia are described: C. pilitibia Grimaldi and Cumming (in Lebanese amber), C. mediobscura Grimaldi and Cumming, C. alava Arillo and Grimaldi (in Spanish amber), and C. burmitica Grimaldi and Cumming (in Burmese amber). A new genus, Chimeromyina Arillo and Grimaldi is also described, for a primitive new species C. concilia (in Spanish amber). New details of these flies are described, particularly of male and female terminalia, and the relationships between this and other eremoneuran families are discussed.


Zootaxa ◽  
2020 ◽  
Vol 4858 (2) ◽  
pp. 295-300
Author(s):  
IGOR A. BALASHOV ◽  
EVGENY E. PERKOVSKY ◽  
DMITRY V. VASILENKO

Diplommatinidae Pfeiffer, 1857 is a speciose family of minute operculate land snails that includes more than 500 extant species occurring mainly in Southeastern Asia and northern Oceania with some species in tropical America and, arguably, in Madagascar (Kobelt 1902; Wenz 1938-1939; Haas 1961; Egorov. 2013; Yamazaki et al. 2013; Neubert & Bouchet 2015; Nurinsiyah & Hausdorf 2017; Páll-Gergely et al. 2017a; Greke, 2017). The fossil record of Diplommatinidae is very sparse; it was recorded from the Miocene of Poland (Harzhauser & Neubauer 2018) and four species were recently described from Cretaceous Burmese amber, being the oldest known diplommatinids (Yu et al. 2018; Hirano et al. 2019; Bullis et al. 2020). 


2014 ◽  
Vol 28 (5) ◽  
pp. 522 ◽  
Author(s):  
Gerasimos Cassis ◽  
Celia Symonds

Acaciacapsus, gen. nov. is described as a new plant bug genus, with eight new included species: A. amadeus, sp. nov.; A. appha, sp. nov.; A. aureolus, sp. nov.; A. bournda, sp. nov.; A. emeraldensis, sp. nov.; A. lolworthensis, sp. nov.; A. millstreamensis, sp. nov.; and A. woodwardi, sp. nov. Differential diagnoses and descriptions are given for all species, including salient characters, and the male and female genitalia. An identification key is provided to species. Male genitalia are illustrated, and a habitus photograph is provided for each species. Female genitalia are illustrated for two species. The genus is putatively an Acacia specialist, and has cryptozoic yellowish colouration. The species are primarily found in arid and semi-arid regions of non-monsoonal regions of Australia. The collection events are digitised and their distributions mapped. A phylogeny of species is given. Modifications are given to male genitalic homologies and are discussed in reference to other Australian orthotylines.


2019 ◽  
Vol 2 (3) ◽  
pp. 289-296 ◽  
Author(s):  
CHENYANG CAI ◽  
DIYING HUANG

Silvanidae is a small group of cucujoid beetles, and their fossil record is poorly documented. The two recently described genera from Burmese amber, Cretoliota Liu et al. and Protoliota Liu et al., are distinctive among all known Silvanidae, displaying markedly long antennae and mandibular horns in males, as found in the extant Uleiota Latreille. Due to the limited sampling of fossil specimens, the morphological variations of male mandibular horns remain a mystery. Here we report six well-preserved specimens of Protoliota with both male and female genitalia exposed from mid-Cretaceous Burmese amber. Our discovery confirms the presence of remarkable sexual dimorphism in Protoliota. Males of Protoliota antennatus Liu et al. display short to very long mandibular horns and much longer antennae. Interesting morphological convergence of the beetles (Silvanidae and Staphylinidae) living under the bark of dead trees is briefly discussed. Our discovery represents the first definitive sexual dimorphism in beetles from Burmese amber.


Zootaxa ◽  
2010 ◽  
Vol 2562 (1) ◽  
pp. 24
Author(s):  
GERMÁN SAN BLAS ◽  
FERNANDO NAVARRO

Bergiantina, a new Agaristinae genus, is described. The genus contains 8 species. Three were previously assigned to Aucula Walker: Metagarista hilzingeri Berg, Euthisanotia magnifica Schaus, and Aucula schausi Jörgensen. Two were previously assigned to Erocha Walker: Heterocampa dolens Druce and Erocha trita Druce. Three new species are described: Bergiantina intermedia, B. parva, and B. familiae. Bergiantina can be distinguished from other Agaristinae by its distinctive forewing pattern with white patches or stripes associated with the postmedial line. Other diagnostic characters include: male genitalia with moderately asymmetric valves, aedoeagus with an apical sclerotized horn-like dorsal projection, and female genitalia with a thin, membranous ductus bursae 3x as long as anterior apophysis. Adults and male and female genitalia are described and illustrated, and a key to species provided. One new synonymy is established and two lectotypes are designated.


Zootaxa ◽  
2017 ◽  
Vol 4227 (1) ◽  
pp. 135 ◽  
Author(s):  
JOSE V. PÉREZ SANTA-RITA ◽  
JOAQUIN BAIXERAS

Ancoruncus langeri, new genus and new species, is described and illustrated from the Neotropics (Bolivia). It is assigned to the tribe Cochylini (subtribe Euliina) in the family Tortricidae. Ancoruncus langeri is characterized by an unusual, strongly developed uncus, distally expanded into an anchor-like, bilobed apical process and a complex gnathos in male genitalia, as well as an unusual configuration of the anterior lobes of the papillae anales, and tergum 8 with the anterior area bearing a double pocket in the female genitalia. The hypothetical dorsal coupling mechanism of the male and female genitalia is discussed. 


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