scholarly journals New genera of brachyceran flies (Diptera: Xylomyidae and Apsilocephalidae sensu auctorum) from mid-Cretaceous Hukawng Valley Burmese amber

2019 ◽  
Vol 2 (3) ◽  
pp. 251-261
Author(s):  
MÓNICA M. SOLÓRZANO KRAEMER ◽  
JEFFREY M. CUMMING

Two new genera and species from the family Xylomyidae: Pankowskia primera, gen. et sp. nov., Cretarthropeina perdita gen. et sp. nov., and one genus and species incertae sedis, closely related to the family Apsilocephalidae: Kuhwahldyia indefinita gen. et sp. nov. are described from mid-Cretaceous Hukawng Valley Burmese amber. A male Xylomyidae is described for the first time from this amber. The systematic position of each new taxon is discussed.

Insects ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 19
Author(s):  
Jan Ševčík ◽  
Heikki Hippa ◽  
Nikola Burdíková

The following 17 extant new species of Sciaroidea (Diptera: Bibionomorpha) are described: Bolitophila nikolae Ševčík sp. nov. (Bolitophilidae, Taiwan), Catocha jingfui sp. nov. (Cecidomyiidae, Taiwan), Catocha manmiaoe sp. nov. (Cecidomyiidae, Taiwan), Catocha shengfengi sp. nov. (Cecidomyiidae, Taiwan), Planetella taiwanensis sp. nov. (Cecidomyiidae, Taiwan), Diadocidia pseudospinusola sp. nov. (Diadocidiidae, Taiwan), Asioditomyia bruneicola sp. nov. (Ditomyiidae, Brunei), Asioditomyia lacii sp. nov. (Ditomyiidae, Taiwan), Ditomyia asiatica sp. nov. (Ditomyiidae, Thailand), Chetoneura davidi sp. nov. (Keroplatidae, Brunei), Euceroplatus mantici sp. nov. (Keroplatidae, Thailand), Setostylus fangshuoi sp. nov. (Keroplatidae, Taiwan), Platyceridion yunfui sp. nov. (Keroplatidae, Hainan), Terocelion adami sp. nov. (Keroplatidae, Taiwan), Hadroneura martini sp. nov. (Mycetophilidae, Taiwan), Paratinia furcata sp. nov. (Mycetophilidae, Czech Republic, Slovakia), and Nepaletricha sikorai sp. nov. (Sciaroidea incertae sedis, Thailand). Two new genera are described from the mid-Cretaceous Burmese amber, Burmasymmerus gen. nov. (Ditomyiidae, type species Burmasymmerus korneliae sp. nov., including also B. wieslawi sp. nov.), representing the first record of the family Ditomyiidae from the Mesozoic, and Burmatricha gen. nov. (Sciaroidea incertae sedis, type species Burmatricha mesozoica sp. nov.). Molecular phylogeny of Ditomyiidae, based on two DNA markers (28S, COI), as well as that of Catocha Haliday, 1833, based on the mitochondrial COI and 16S fragments, are also presented.


2020 ◽  
Vol 3 (3) ◽  
pp. 248-259
Author(s):  
ERIK TIHELKA ◽  
DIYING HUANG ◽  
CHENYANG CAI

Elucidating the phylogenetic affinities of enigmatic fossils is crucial for resolving the early diversification of the superfamily Cucujoidea, a diverse group of polyphagan beetles whose relationships remain contentious. The systematic position of the Cretaceous genus Pleuroceratos known from Burmese amber has been uncertain; the genus was previously placed into Silvanidae, Sphindidae, and Cucujoidea incertae sedis. Here we describe a new species, Pleuroceratos jiewenae sp. nov., from mid-Cretaceous Burmese amber and conduct a formal phylogenetic analysis to elucidate the position of the genus. We recover Pleuroceratos as nested within the family Phloeostichidae, represented in the modern fauna by four genera of fungivorous subcortical beetles with a highly disjunct distribution range. Pleuroceratos beetles are the sole fossil members of Phloeostichidae known to date and indicate that the family begun to diversify by the mid-Cretaceous.


Zootaxa ◽  
2017 ◽  
Vol 4263 (3) ◽  
Author(s):  
MODEST GUȚU ◽  
GRAHAM J. BIRD

Guţu (2016) described a new subfamily, seven new genera and 21 new species in the family Leptocheliidae. However, another five genera and twelve new species, not mentioned by him, were described in 2015 and 2016. Study of the overlooked genera reveals that the morphology of the female of Permixtimella (genus described from both sexes) is similar to those of the type-female of the genus Ektraleptochelia (whose male is unknown). Permixtimella is considered a junior synonym of Ektraleptochelia, which includes two species: E. phoxops and E. oculifurcillata. The place of Ektraleptochelia, Catenarius and Larsmentia within leptocheliid systematics, formerly in the subfamily Catenariinae, is reconsidered and the last genus retained. Some similarities between the females of Nuberis and Bathyleptochelia are presented for the first time. The species Leptochelia acrolophus, L. mexicana, L. ortizi, L. taitungensis and L. grandidentata are transferred to other genera, becoming Chondrochelia acrolophus, C. mexicana, C. ortizi, C. taitungensis and Makassaritanais grandidentatus, respectively. The species Leptochelia pinarensis and L. suhi are considered a junior synonym of Leptochelia forresti and Makassaritanais grandidentatus, respectively.


Zootaxa ◽  
2021 ◽  
Vol 5060 (1) ◽  
pp. 1-44
Author(s):  
ELENA V. MIKHALJOVA

The family Diplomaragnidae Attems, 1907 of the Asian part of Russia is reviewed and shown to comprise 11 genera and 60 species + 1 dubious species. Two genera and seven species are described here as new to science: Alineuma gen. nov., with type species A. rodionovi sp. nov. and Litovkia gen. nov., with the type species L. anisimovka sp. nov., Diplomaragna budilovi sp. nov., Diplomaragna dentifer sp. nov., Pacifiosoma shabalini sp. nov., Pacifiosoma acutum sp. nov., Pacifiosoma triangulatum sp. nov. Pacifiosoma asperum Mikhaljova, 2016 is recorded from the Primorsky Krai for the first time. Five genera are endemic to the Asian part of Russia. At the species level, the rate of endemism amounts to 91.7%. A key is given to all species of Diplomaragnidae presently known from Siberia and the Russian Far East. The distributions of the region’s diplomaragnids are discussed. Taxonomic remarks are provided for many species.  


2018 ◽  
Vol 58 ◽  
pp. 6 ◽  
Author(s):  
Rodrigo Salvador Bouzan ◽  
Luiz Felipe Moretti Iniesta ◽  
João Paulo Peixoto Pena-Barbosa ◽  
Antonio Domingos Brescovit

A checklist of the family Chelodesmidae Cook, 1895 (order Polydesmida) from state of São Paulo, Brazil has been performed based on literature and examined material from the collection of the Instituto Butantan, São Paulo (IBSP). A total of 15 genera (7 tribes and 5 genera considered incertae sedis) with 64 species are listed. Among these species, 30 presented a single one record in the state, 19 with more than one record and four recorded for the first time for the state of São Paulo, and 11 species occurring in other Brazilian states. The most distributed species is Brasilodesmus paulistus paulistus (Brölemann, 1902) with 52 records of occurrence. In addition, a complete bibliography list of the chelodesmidan fauna from the state is compiled, as well as distribution maps for all species are provided.


1927 ◽  
Vol 5 (2) ◽  
pp. 89-104 ◽  
Author(s):  
D. O. Morgan

The classification of the Trematode family Opisthorchiidæ presents some difficulties to the systematist. These difficulties arise partly from the fact that a number of the existing species appear to lack any real morphological characters by which they can be differentiated, slight variations in measurements, together with a difference in host, having been considered sufficient to justify the making of new species. This view has resulted in the placing of undue importance on somewhat minor differences when they do occur in other species, such differences being considered sufficient for creating new genera.The systematist is further confronted with the difficulty of forming definite opinions on the systematic position of some of the species made by earlier workers. Their descriptions and figures are often inadequate owing to the fact that characters which, in the past, were considered of minor importance are now given much closer attention. Examples of the confusion which has arisen from such a position will be referred to in this paper.


2011 ◽  
Vol 80 (4) ◽  
pp. 729-745 ◽  
Author(s):  
Alexandr Kirejtshuk

The oldest representatives of the subfamilies Meligethinae (Coleoptera: Nitidulidae) and Brontinae (Coleoptera: Silvanidae) from Baltic amber and some evolutionary notes The paper describes Melipriopsis rasnitsyni gen. et sp. n. (Nitidulidae, Meligethinae) and Dendrobrontes popovi gen. et sp. n. (Silvanidae, Brontinae) from Baltic amber. The systematic position and phylogenetic significance of the new genera and species are discussed. A review of the fossils of the families Nitidulidae and Silvanidae is given. The genus Sinisilvana HONG, 2002, for which the family Sinisilvanidae HONG, 2002 was proposed, is considered as a genus with an unclear position within Silvanidae.


Author(s):  
Horia R. Galea ◽  
Davide Maggioni

This study reports on 25 species of hydroids occurring in the collections gathered during KANACONO and KANADEEP expeditions carried out in the SE of New Caledonia in 2016, and off the western coast of the island in 2017, respectively. Of these, 19 have not been dealt with in earlier reports on these collections. Two new genera and four new species are described, viz, Actinopluma mirifica Galea gen. et sp. nov., provisionally assigned to the family Kirchenpaueriidae Stechow, 1921, Schizoplumularia helicoidalis sp. nov., belonging to the Plumulariidae McCrady, 1859, and Corhiza patula Galea sp. nov. and Thamnopteros uniserius Galea gen. et sp. nov., both placed in the family Halopterididae Millard, 1962. The gonotheca and the medusoid gonophore of Plumularia contraria Ansín Agís et al., 2014 are described for the first time, allowing a genus transfer to Dentitheca Stechow, 1919, as D. contraria comb. nov. Plumularia conjuncta Billard, 1913, known earlier from a minute portion of colony, is redescribed based on a complete, though infertile, specimen. Similarly, complete specimens corresponding to the hydroid previously referred to as Antennella megatheca Ansín Agís et al., 2009 are documented, allowing a provisional reallocation to Corhiza Millard, 1962 and a description of its so far unknown gonothecae. Fertile material assignable to the poorly-known Monostaechas fisheri Nutting, 1905 allows the recognition of this hydroid as a valid species, distinct from M. quadridens (McCrady, 1859). Most taxa are illustrated to validate the reliability of their identifications. Finally, phylogenetic reconstructions of the families Aglaopheniidae, Plumulariidae, and Halopterididae, based on the 16S rRNA, allowed a first genetic characterization of some of the species dealt with in this work.


Author(s):  
Daniel Leduc

Two new genera and five new species of Selachinematidae are described from the New Zealand upper continental slope (350-1240 m depth). Synonchiella rotundicauda sp. nov. is characterised by cephalic setae 0.25 cbd long, mandibles each with two pairs of hooks and two wing-like projections laterally, eight cup-shaped pre-cloacal supplements and short rounded tail. Pseudocheironchus gen. nov. is similar to Cheironchus, but differs from the latter in having a cuticle without lateral differentiation, cephalic setae only slightly longer than the outer labial sensillae, and a posterior buccal cavity with three equal mandibles. Pseudocheironchus ingluviosus gen. et sp. nov. is characterised by mandibles with eight blunt teeth, multispiral amphideal fovea with five turns, and a short rounded tail. Males of this new species with 17-19 cup-shaped pre-cloacal supplements. Males of the genus Cobbionema are described for the first time; C. trigamma sp. nov. is characterised by four long cephalic setae and six smaller outer labial setae in one circle, six rhabdions surrounding the anterior buccal cavity, each with two pairs of pointed projections at their posterior extremities, posterior buccal cavity widening posteriorly, with three pairs of rhabdions fused posteriorly and widening anteriorly, males with two testes pointing anteriorly and with reflexed posterior testis, and no pre-cloacal supplements. Gammanema agglutinans sp. nov. is characterised by a short, stout body often covered in adhering mucus and detritus, cuticle with minute spines, leaf-shaped somatic setae with ducts, sexual dimorphism in the shape of the amphideal fovea (loop-shaped in males and spiral in females), posterior buccal cavity with three pairs of broad, column-shaped rhabdions fused anteriorly, intestine cells with orange-brown granules, and small tubular pre-cloacal supplements. Bendiella gen. nov. is most similar to Halichoanolaimus, but differs from the latter, and all other genera of the family Selachinematidae, in having a cuticle with lateral differentiation consisting of longitudinal rows of larger dots, and from all other genera of the Choniolaiminae in lacking pre-cloacal supplements. Bendiella thalassa gen. et sp. nov. is characterised by amphideal fovea with 5.25 turns, anterior buccal cavity with twelve rhabdions, each with a pair of pointed projections at posterior extremity, posterior buccal cavity with three Y-shaped pairs of slender rhabdions fused from two thirds of distance from anterior ends, and conico-cylindrical tail.


Zootaxa ◽  
2017 ◽  
Vol 4320 (3) ◽  
pp. 597 ◽  
Author(s):  
PAVEL SROKA ◽  
ANDRÉ NEL

A new fossil species of the family Compsocidae, namely Burmacompsocus coniugans sp. nov. is described from Late Cretaceous Burmese amber. Diagnostic characters separating the new species from the previously known representatives of the genus are discussed. Details of mouthparts and genitalia are described for the genus for the first time. The discovery of the new species supports the hypothesis of higher Compsocidae diversity existing in the past compared with the present. 


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