Ephemera – Une revue scientifique dédiée aux insectes aquatiques., ces 365 derniers jours

Une revue scientifique
Ephemera est destinée à la publication d’articles scientifiques. Initialement dédiée aux seuls Éphémères, cette revue s’est progressivement et naturellement ouverte aux insectes aquatiques d’autres ordres tels que les Plécoptères, Hétéroptères, Mégaloptères, Névroptères, Coléoptères, Trichoptères et Diptères, longtemps délaissés dans notre pays. Pourtant, leur biologie et leur écologie méritent intérêt, ne serait-ce que pour leur utilisation dans l’évaluation de la qualité des milieux aquatiques.
Son domaine d’étude reste toutefois limité à l’Ouest Paléarctique et au pourtour méditerranéen, élargis aux départements, régions et collectivités territoriales d’outre-mer.
Des thèmes
Ephemera s’est attachée la collaboration des meilleurs spécialistes européens et mondiaux, et couvre des thématiques variées : systématique, chorologie, écologie, phylogénie, bio-surveillance des milieux aquatiques dulçaquicoles, paléontologie, …
Les problématiques de protection et de « valeur patrimoniale » des espèces sont également traitées.
Ephemera est analysée par Clarivate Analytics (Zoological Records).
Une diffusion
Ephemera, conçue par le groupe de travail Opie-benthos est éditée par l’Opie. Elle était auparavant vendue par abonnement annuel ou à l’unité. Désormais revue numérique en libre accès, sa consultation en ligne est gratuite.
Un ISSN a été demandé auprès de la BnF pour la revue numérique. La revue papier quant à elle portait l’ISSN 1298-0595.
Communiquer une publication
Les auteurs souhaitant soumettre une publication à la revue sont invités à prendre connaissance des quelques dispositions techniques concernant la présentation de leur document et peuvent joindre la rédaction à michel.brulin chez insectes.org



jeudi 13 février 2025

jeudi 30 janvier 2025

  • On the genus Pseudosmittia from continental France. I. Description of P. beverana sp. n. from the upper basin of the River Bévéra (Diptera, Chironomidae, Orthocladiinae)

    Male adult and pupal exuviae of Pseudosmittia beverana sp. n. are described based on recent material collected in some riparian habitats bordering small springs and streams along the upper basin of the River Bévéra (SE-France). The male adult keys in the brevifurcata-gr, in particular, close to P. carita Ferrington & Sæther, 2011. Atypical morphological characters found in the male adult (antenna with apical seta, anal point triangular, short and pubescent; phallapodeme with large aedeagal lobe; virga fine spine shaped; dorsal lobe of inferior volsella large; gonostylus nearly semi-circular) and the pupal exuviae (anterior part of thorax with small spines and ridges; conjunctives II/III to V/VI with rows of orally projecting spinules; anal lobe divided in 2 larges characteristic postero-lateral mounds), allowed us to consider the new species as a local biogeographic representative. To date, the genus Pseudosmittia is represented worldwide by about 110 species, of which up to 20 are reported from Europe and 13 from France. The description of P. beverana sp. n. increases the total number to 14 of known species from this country. Remarks and comments on the ecology of the new species are given.


jeudi 23 janvier 2025

  • On the genus Pseudosmittia Edwards, 1932 from Corsica. I. Description of P. acquavivai and P. tyrrhena spp.n. (Diptera, Chironomidae, Orthocladiinae)

    Male adult of Pseudosmittia acquavivai sp. n. and P. tyrrhena sp. n. are described based on material collected in Corsica. Localities where the type-material of the 2 new species, were captured are: lateral cold springs in western Corsica for the first one; estuarine zone of the River Ostriconi for the second. P. acquavivai sp. n. appears to key in the brevifurcata-gr, close to both P. brevifurcata (Edwards, 1926) and P. carita Ferrington & Sæther, 2011, based on some unusual morphological characters: inferior volsella double, both lobes subequal, acutely triangular; gonostylus elongate; crista dorsalis bilobed, proximal lobe bulge-like, occupying 90% of the gonostylus. P. tyrrhena sp. n. belongs to a separate subgroup within the tyrrhena-gr, based on the following atypical characters: antenna with one apical seta; palpomeres 4 and 5 fused, segment 5 with one apical seta; pars ventralis large tongue-like shaped; gonocoxite truncate apically; inferior volsella double, dorsal lobe broadly triangular, accessory lobe long nose-like, anterior half bare, caudal part covered with setae; gonostylus massive, crista dorsalis large lobe-like, located caudally. The two new species are considered to be local biogeographic representatives of the Tyrrhenian sub-region. Remarks and comments on the ecology of the new species are given.


jeudi 16 janvier 2025

  • Polypedilum (Pol.) guianensis sp. n., a new species occuring in the primary rainforest of French Guiana (Diptera, Chironomidae, Chironominae)

    Male adult of Polypedilum (Pol.) guianensis sp. n. is described based on material composed of adults captured over the canopy of the primary rainforest of Petit-Saut in French Guiana. On the basis of the specific distinguishing characters (inner verticals in 2 rows, caudal margin of frontal area low, widely bilobed; antenna 1250 µm long, terminal segment 730 µm long, tapering distally, AR 1.74; palpomere 3 longer than 4 and 5; tergites I-III and VIII with distinct circular pigmentation on postero-lateral corner; tergite IX with 3 characteristic ridges; superior volsella ending with one atypical short curved seta, outer seta located on distal half; gonocoxite with very long setae), P. guianensis sp. n. belongs to a separate group of the subgenus Polypedilum: the guianensis-gr. Therefore, the new species can be considered as a local biogeographic representative element of the primary rainforest of French Guiana. Remarks with short comments on the ecology of the new species are given.


jeudi 9 janvier 2025

  • Observation d’Isoperla ambigua (Despax, 1936) dans les Pyrénées (Plecoptera, Perlodidae)

    L’identification du genre Isoperla est souvent complexe. Isoperla ambigua a récemment été découvert dans les Pyrénées à proximité d’Andorre, dans le département des Pyrénées-Orientales sur deux cours d’eau (à plus de 1800 m d’altitude) très proches l’un de l’autre, tous deux affluents de la rivière Ariège. Les caractéristiques morphologiques des spécimens collectés sont rapidement passées en revue. Enfin, une portion de 658 paires de bases du gène COI d’un échantillon de l’espèce est séquencée et comparée aux données existantes sur plusieurs autres espèces d’Isoperla de France métropolitaine.


jeudi 2 janvier 2025

  • On the genus Einfeldia Kieffer from France. Description of E. aberlencii sp. n. from French Guiana with emendation of four recently described species from continental France (Diptera, Chironomidae)

    Male adult of Einfeldia aberlencii sp. n. is described based on adults captured over the canopy and along the undergrowth of aquatic habitats in the primary rainforest of Petit-Saut in French Guiana. The distinguishing characters (antero-median part of frontal area with a characteristic concavity, frontal tubercles conical, well developed; antenna 11-segmented, 1235 µm long, terminal segment 850 µm long, AR 2.21; apex of femur and base of tibia of PI with dark spots, pulvilli bilobed; tergites II-VI with semicircular pigmentation medially; tergites VII-VIII fused; tergite IX with two median ridges located between the rows of dorsal setae and the anal bands; anal point slender, parallel-sided; basal portion of superior volsella densely covered with short setae, caudo-lateral side with 2 characteristic curved setae, 1 dorsal, 1 ventral; dorsal setae on inferior volsella short, located apically; gonostylus swollen medially, abruptly narrowing distally) easily separate the new species from all other congeners. In total, 6 Einfeldia species are reported from France, which include E. pagana (Meigen, 1838), E. palaearctica Ashe, 1990 and 4 recently described species, which were wrongly assigned to the genus Polypedilum subgenus Uresipedilum: P. alixae Moubayed & Langton, 2022; P. bernardae Moubayed-Breil, 2020; P. claudei Moubayed-Breil, 2020; P. tissoti Moubayed-Breil & Langton, 2020. At present, 4 new combinations are proposed to the 4 previously cited species, which are considered henceforth as belonging to the genus Einfeldia, namely: E. alixae (Moubayed & Langton, 2022); E. bernardae (Moubayed-Breil, 2020); E. claudei (Moubayed-Breil, 2020) and E. tissoti (Moubayed-Breil & Langton, 2020). Consequently, a total of 7 Einfeldia species are currently known from France, including 6 already reported from continental France and 1 (E. aberlencii sp. n.) from French Guiana. Remarks on the taxonomic position with comments on the ecology of the new species are given.


vendredi 27 décembre 2024

  • On the genus Stenochironomus Kieffer from French Guiana. 1. New records with description of S. hallei sp. n. from the primary rainforest (Diptera, Chironomidae, Chironominae)

    Recent material composed of adults, collected in the primary rainforest in French Guiana, revealed the presence of five species of the genus Stenochironomus. In this paper, S. hallei sp. n. is described as male adult based on material captured over the canopy and the undergrowth aquatic habitats of the primary rainforest of Petit-Saut. On the basis of some atypical distinctive characters (posterior margin of frontal area widely bilobed; wing with 2 median dark spots; femur and tibia of PI-PIII with typical dark pigmentation; tergites II-VI with transverse caudal dark spots, tergite VII with 2 circular postero-lateral spots; postero-ventral part of tergite IX with 8 characteristic groups of tripled curved stout setae (4 on each side); anal point slender, spatulate apically; superior volsella with 4 inner setae and 1 typical outer seta; gonocoxite with long setae, apical ones overreaching tip of gonostylus), S. hallei sp. n. appears to belong to a separate group of species and probably can be considered as a biogeographic representative local element of the primary rainforest of French Guiana. Remarks on the taxonomic position of the new species are given.


lundi 23 décembre 2024

  • Ouvrages recommandés pour la détermination morphologique des imagos de Plécoptères de France métropolitaine en 2024

    Aucun ouvrage de synthèse moderne sur l’identification des imagos de Plécoptères de France métropolitaine n’existe actuellement. Est proposé ici un décorticage de la bibliographie ouest européenne et la définition des ouvrages les plus appropriés à la détermination de cet ordre pour la France métropolitaine. Ce travail est divisé en plusieurs parties, liste des espèces par ouvrage (avec notation), détermination des ouvrages identifiés comme les plus appropriés par famille avec commentaires et liste des ouvrages conseillés par zones biogéographiques françaises. À la liste des 201 taxons présents en France analysés, sont ajoutées quelques espèces potentielles pour la zone étudiée, soit 207 au total. Le tableur de cotation des espèces/ouvrages, disponible en ligne, sera régulièrement mis à jour sur ephemera.insectes.org.


jeudi 19 décembre 2024

  • Les Athericidae de l’Arc alpin: compléments à l’inventaire national et éléments d’écologie des populations alpines (Diptera)

    Les Athericidae constituent une famille au nombre d’espèces restreint. La répartition des 4 espèces connues du territoire métropolitain est assez bien documentée, notamment parce que cette famille bénéficie d’un programme d’Inventaire national porté par l’Opie-benthos. Le présent travail apporte des données sur l’Arc alpin français, zone biogéographique pour laquelle les données restaient très parcellaires, ainsi que quelques données écologiques.

                                        


mardi 17 décembre 2024

  • Redescription of Corynoneura magna Brundin, 1949 from acidic springs and peat bogs in north-eastern France (Diptera, Chironomidae, Orthocladiinae)

    Material of two abundant populations composed of male adults, pupae and larvae of Corynoneura magna Brundin, 1949 was recently collected in lentic to semi-lentic habitats including acidic springs and peat bogs located in north-eastern France (alt. 350 and 900 m). In this paper, C. magna is recorded for the first time from continental France. A detailed redescription of the male adult is given. The following distinguishing characters will separate it from other members of the genus Corynoneura: antenna 12-segmented, apical seta present or absent; third palpomere spherical, fifth palpomere notched apically, with 1 apical seta; tibial scale of PIII smooth; sternapodeme inverted U-shaped; phallapodeme scalpel shaped, joint with sternapodeme with a sharp triangular attachment; tergite IX bilobed, with 1 pair of apical setae; gonocoxite truncate apically, ventral junction with branched setae; inferior volsella lobe shaped, located distally; gonostylus massive, megaseta ellipsoidal, or slender with pointed apex. Worldwide, there are currently about 105 known Corynoneura species, of which 45 are reported from the Palaearctic Region and 13 from France. Taxonomic remarks and comments on the ecology and geographical distribution of C. magna are given.


jeudi 5 décembre 2024

lundi 25 novembre 2024

  • Découverte de Nemoura cinerea selene Consiglio, 1959 dans le sud des Alpes françaises (Plecoptera, Nemouridae)

    Lors de voyages de collecte réalisés dans tout l’arc alpin et principalement dans les Alpes françaises et italiennes et les Apennins, divers échantillons ont été collectés afin de mieux connaître les peuplements de ces régions géographiques à la faune si particulière avec un fort taux d’endémisme (Fochetti 2020). Les Préalpes du sud françaises (Préalpes de Nice), le Mercantour et la partie française des Alpes ligures sont particulièrement fréquentés par des espèces apennines extensives ou du versant sud des Alpes comme : Isoperla carbonaria, Leuctra concii, L. elisabethae, L. boreoni, Protonemura ausonia padana, P. caprai, Nemoura rivorum, Dinocras ferreri et Siphonoperla italica (Aubert 1986, Vinçon 1996, Weiss et al. 2011).


  • Chaetocladius rottensis sp. n., a glacial alpine species from the upper basin of the Rhône River, Switzerland (Diptera, Chironomidae, Orthocladiinae)

    The male adult of Chaetocladius rottensis sp. n. is described based on material collected between 1998 and 2018 in glacial alpine springs and streams delimited by the upper basin of the Rhône River (Mutt stream, Swiss Alps, alt. 1800-2100 m). The nearest known alpine species are: C. aedeagolobatus Rossaro, Magoga & Montagna, 2017 and C. lodscrozetae Moubayed-Breil, 2018. Despite the high resemblance between these three species, C. rottensis sp. n. can be separated on a combination of characters as detailed in Table I. In particular, C. rottensis sp. n. and C. lodscrozetae are considered to be sister species based on close morphological similarity. They both belong to relict alpine elements and are considered here as local biogeographic indicators. Currently, there are 16 recorded Chaetocladius species from Switzerland including 13 recently reported by Moubayed-Breil & Lods-Crozet (2018) and 3 additional new records: C. aedeagolobatus Rossaro, Magoga & Montagna, 2017; C. dentiforceps (Edwards, 1929), C. subalpinus Rossaro, Magoga & Montagna, 2017. Consequently, the description of C. rottensis sp. n. increases the total number in the genus to 17 for this country. Remarks, morphological affinities and comments on the ecology of the new species are highlighted.


  • Eukiefferiella permiana sp. n., a plesiomorphic species from the middle basin of the River Lergue (Southern France) (Diptera, Chironomidae, Orthocladiinae)

    The male and pupal exuviae of Eukiefferiella permiana sp. n., are diagnosed and described based on material composed of male pharate adults and pupal exuviae collected during spring and the dry season in lotic habitats along the middle basin of the River Lergue (southern France, altitude 100-160 m), which is characterized by the primary red soil deposit of the Permian Era (Ruffe red rocks, age about 260 million years). Based on some relevant characters found in the male adult (superior volsella semi-circular, inferior volsella long acute triangle shaped, proximal expansion of gonostylus triangular) and pupal exuviae (frontal apotome with long ridges and 2 small triangular tubercles; base of antennal sheath with broad triangular expansion; thoracic horn enlarged medially, precorneal tubercle absent; large crochets present on tergites IV-V), the new species appears to belong to the coconina-group (see Moubayed-Breil & Mary 2019), which includes E. coconina Moubayed-Breil & Mary, 2019, E. bedmari Vilchez-Quero & Laville, 1987, E. hessi Freeman, 1958 and 2 morphotypes: E. sp. A (Thailand) and E. sp. B (New Caledonia). Currently, the genus Eukiefferiella is represented worldwide by about 92 species. Consequently, the description of E. permiana sp. n. increases the total number in the genus to 22 from continental France and to 23 from Europe. Taxonomic remarks with key to male adult and pupal exuviae of the coconina-gr and comments on the ecology and geographical distribution of the new species are given.


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