Sandrine Ulenberg

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• Dr.
• Honorary Guest Researcher at Naturalis Biodiversity Center

This study presents the results of cladistic analyses of the morphology of 1) the subfamilies of the Yponomeutidae, 2) the genera of the Yponomeutinae, and 3) the species of Yponomeuta Latreille, 1796. The sequential steps in the evolution of the host plant associations, the presumed key factor in the processes of speciation within Yponomeuta, as e...

The classification of Hymenoptera has undergone significant changes over the past five years, driven by extensive molecular research, integrative taxonomy and other factors. Additionally, the evolutionary history of the order is becoming more clear. Drawing on both recent and older literature and embracing new perspectives, we present an updated ov...

In this paper, we provide an overview of the seed chalcid wasps Bootanomyia spp. and Megastigmus spp. (Hymenoptera: Megastigmidae) in both Belgium and the Netherlands. Sixteen species, including six non-natives to Europe, are reported after checking over a thousand specimens. The European species Megastigmus aculeatus (Swederus, 1795) and M. suspec...

Dataset for Megastigmidae in Belgium and the Netherlands, including all existing collection data and validated records from citizen science portals up to 2022.

The egg parasitoid Anastatus bifasciatus (Hymenoptera, Chalcidoidea), reared from eggs of the oak processionary moth, new for the Netherlands. For the first time in the Netherlands, larvae of the chalcidoid Anastatus bifasciatus were found in an egg batch of the oak processionary moth Thaumetopea processionea. After ten years of intensive monitorin...

In this article, Tetrastichus temporalis (Graham, 1961) is recorded as a new species for the fauna of the Netherlands. It also contains the first published notes on the biology of the species.

Pteromalus aartseni reared from Noeeta pupillata on Hieracium laevigatum.

Chalcidoidea collected in nature reserve 'De Kaaistoep' in The Netherlands from 1995-2019

With the death of Theo Gijswijt on May 27, 2015 the Entomological community lost a prominent specialist in the taxonomy of Chalcidoidea. Gijswijt enriched the collections of Naturalis Biodiversity Center and the former Zoological Museum Amsterdam (now in Naturalis) with 100.000 identified specimens belonging to about 1700 species mainly collected b...

Claessens, J., Ulenberg, S. & B. Gravendeel (2016): Torymus arcticus (Torymidae), a new pollinator for Chamorchis alpina.- J. Eur. Orch. 48 (1): 3-10. In Bavaria (Germany) pollinators of Chamorchis alpina were observed in several localities. Pollinators included ichneumonoid and chalcid wasps and Dasytes alpigradus (Coleoptera). Judging from the nu...

Background: Reliable taxonomy underpins communication in all of biology, not least nature conservation and sustainable use of ecosystem resources. The flexibility of taxonomic interpretations, however, presents a serious challenge for end-users of taxonomic concepts. Users need standardised and continuously harmonised taxonomic reference systems,...

Chalcidoidea in nests of Megachile Since the publication in 1903 of J.Th. Oudemans of unidentified Chalcidoidea from a nest of a Megachile bee, no records were published in the Netherlands of Chalcidoidea from Megachile. Worldwide 61 Chalcidoidea species are known from 42 Megachile species. On basis of records outside the Netherlands, we expect sev...

Liriomyza bryoniae, L. huidobrensis, L. sativae and L. trifolii are leafminers of great economic importance; morphologically they are difficult to separate, many being inseparable at the pre-adult stages. Horizontal starch gel electrophoresis of larvae, pupae and adults was carried out in order to search for diagnostic allozymic characters. Analysi...

This gorgeously illustrated book presents the life and work of Maria Sibylla Merian, who defied the conventions of her time to pursue her passion for documenting the natural world in all its glorious, and sometimes ferocious, detail. After more than fifteen years of marriage to a fellow artist and the birth of two daughters, Merian left her husband...

Maria Sibylla Merian was de eerste die kunst en entomologische wetenschap wist te combineren. Ze kon beter dan wie ook in haar tijd vlindervleugels, harige rupsen, poppen waarin de vlinder zich al openbaart met één haar van het penseel vastleggen. Het British Museum in Londen en de koningin van Engeland bezitten veel en prachtig werk – in het boek...

Microlepidoptera in The Netherlands in 2004 In this 16th annual report we record the following remarkable findings: the first record of Stigmella carpinella (Nepticulidae) outside Limburg; the third specimen of Monopis imella (Tineidae), the first adults and two new localities of Lyonetia prunifoliella (Lyonetiidae), previously only known from leaf...

In this 15th annual report we record Cydia inquinatana for the first time from The Netherlands in two localities in Gelderland, we also refer to four other new records published elsewhere. The first caterpillars and mines of Tischeria decidua constitute the second and third records of this species. The leafminers on Cornus : Antispila metalella and...

In this fourteenth annual report three species are recorded for the first time from The Netherlands: Phyllonorycter insignitella, Elachista orstadii and Blastobasis lignea. Leafmines of P insignitella (Gracillariidae) were found on Trifolium pratense in the province of Limburg. Elachista orstadii (Elachistidae) was collected with a Malaise trap on...

https://various-001.linnaeus.naturalis.nl/linnaeus_ng/app/views/introduction/topic.php?id=3309&epi=55

Microlepidoptera in The Netherlands in 2000 In this 13th annual report four species are recorded for the first time from The Netherlands: In 1999 one specimen of the Mediterranean tineid Crassicornella agenjoi was found in Limburg, probably accidentally imported. Phyllonorycter robiniella, the expanding leafminer on black locust (Robinia pseudoacac...

This is the twelfth compilation of interesting Microlepidoptera collected in The Netherlands, covering the year 1999. Cochylidia richteriana (Tortricidae) is recorded for the first time from The Netherlands: two females were swept from vegetation in the extreme south of the country. In 1999 Cameraria ohridella (Gracillariidae), appeared to be estab...

https://various-001.linnaeus.naturalis.nl/linnaeus_ng/app/views/introduction/topic.php?id=3386&epi=164

Descriptions are given of the larval stages of the 15 most damaging African stemborer species, belonging to the genera Chilo Zincken, Coniesta Hampson, Eldana Walker, Maliarpha Ragonot, Scirpophaga Treitschke (Pyralidae), Sesamia Guenée and Busseola Thurau. Chaetotaxy of the larvae has been studied. Previously published studies on the same subject...

Liriomyza bryoniae, L. strigata, L. huidobrensis, L. trifolii and L. sativae are leafminers of great economic importance. Morphological identification is difficult and only possible in some life stages. Cellulose-acetate gel electrophoresis provides a method for identification of all five species in each stage of the life cycle. The present paper d...

Host plant selection of fiveYponomeuta species was studied in leaf discs tests.Y. cagnagellus showed an absolute preference forEuonymus europaeus, whereas larvae of the other species, in various degrees, proved to be less restricted in their choice. In some instancese.g., ofY. padellus (fromCrataegus monogyna), developmental success is greater onPr...