http://repository.naturalis.nlNaturalis RepositoryenNaturalisdpcmedewerkers-uba@uva.nl (DPC Medewerkers)dpcmedewerkers-uba@uva.nl (DPC Medewerkers)Wed, 19 Jun 2013 23:02:05 UThttp://www.repository.naturalis.nl/n/naturalis/graphics/logo.jpghttp://repository.naturalis.nlhttp://repository.naturalis.nl/record/447983http://repository.naturalis.nl/record/447983The goal of this study is to assess if the reproductive strategy of a brooding land snail shifts along a climatic gradient. We focused on the following traits: timing and length of the reproductive season, brood size, ontogenetic dynamics of embryos, and reproductive mode (viviparity versus egg-laying). We dissected the central European door snail Alinda biplicata, collected monthly from eight populations covering the oceaniccontinental climatic gradient within the species’ distribution range. Forty percent of the 1706 dissected individuals were brooding. The species displayed a spring-summer reproductive activity pattern: intrauterine brooding was recorded between March and September; first embryos of a developmental stage that equals that of live-born neonates appeared in late April. Brooding started approximately when the mean daily temperature of a month exceeds ca. 5°C, thus the ontogenetic development of embryos is advancing earlier in populations under the influence of mild oceanic climate, and later in the eastern, more continental part of the range, or in submontane localities. A range-wide synchrony in reproduction occurred in May, when average temperatures and precipitation display a high rangewide similarity. The mean number of intrauterine eggs decreased between spring and summer in all populations (April: 10.9 ± 2.9; September: 6.4 ± 2.4), suggesting a gradual release of neonates which are not immediately replaced in uteri by new eggs. Snails from areas with long frosty winters do not invest much in a second reproductive period in late summer. Embryos of advanced embryonic stage were found in the reproductive tract of individuals from each population, thus we refute the hypothesis that A. biplicata switches its reproductive strategy towards oviparity under the influence of oceanic climate.A. Sulikowska-Drozd, T.K. Maltz, H. Kappeshttp://repository.naturalis.nl/record/441424http://repository.naturalis.nl/record/441424De bladsprietkever Oxythyrea funesta komt vooral voor in Zuid-Europa. Een eeuw geleden was deze soort ook bekend van diverse vindplaatsen in Noordwest-Europa, maar ze is overal verdwenen. Recentelijk is O. funesta weer opgedoken in België en enkele plaatsen in Duitsland. In 2010 werd een vrouwtje gevonden in Zuid-Limburg, het eerste exemplaar sinds 1907 in ons land. Het is onduidelijk of de nieuwe vondsten duiden op het algemener worden van deze soort, of dat er beter op gelet wordt. Ook is onbekend of de dieren door de mens worden geïmporteerd of dat ze op eigen kracht ons land bereiken.Th. Heijerman, H. Cortenhttp://repository.naturalis.nl/record/447986http://repository.naturalis.nl/record/447986Leptynia specimens were analyzed by karyotype analysis, mitochondrial gene sequencing and SEM of bodies and eggs. Here we describe a new species, Leptynia annaepaulae, and three subspecies of L. attenuata Pantel (L. attenuata attenuata, L. attenuata iberica, L. attenuata algarvica). The phylogeny of the genus Leptynia is congruent with a karyotype trend toward a reduction of chromosome number and the shift from the shared XX/X0 sex chromosome formula to the unusual XX/XY one. Chromosome repatterning appears to occur ahead of genetic differentiation, following a chromosome model of cladogenesis. Chromosome and genetic differentiation, in turn, appears to precede morphological distinction, thus realizing a condition of incipient species for most of the Leptynia taxa. Actually, morphological analyses revealed that, only rarely clear cut differences exist among and between taxa, while, more often, just trends in the differentiating traits occur, since the investigated characters generally suffer from some overlapping: In this study, only the 10th:9th ratio value and the subanal vomer appear to be diagnostic for L. annaepaulae against all other Leptynia taxa. As a consequence, the subanal vomer as well as cercus tooth features with egg chorion traits are not sharply diagnostic for the remaining co-generic taxa; however, comparisons are quite helpful in reducing uncertainties. A likely phylogeographic scenario for the genus supports that Leptynia ancestors spread from Northern Africa into Southern Spain where an ancestral taxon originated L. annaepaulae (2n = 40/39, XX/X0, with 2 large dibrachial pairs). Later on, a northbound colonization, should have originated L. caprai (2n = 40/39, XX/X0, all acrocentrics), from which L. montana (2n = 38, XX/X0) and L. attenuata (2n = 36, XY/XX) originated; supporting instances of chromosome repatterning have been actually observed. In this connection we like to stress that, particularly in stick insects, androgenesis has been a preferential pathway to quickly make homozygous those odd chromosome rearrangements likely responsible for low fitness in the heterozygotes.V. Scali, L. Milani, M. Passamontihttp://repository.naturalis.nl/record/445782http://repository.naturalis.nl/record/445782I made use of the known dates of reclamation (and of afforestations) in the IJsselmeerpolders in The Netherlands to assess evolutionary adaptation in Cepaea nemoralis. At 12 localities (three in each polder), I sampled a total of 4390 adult individuals in paired open and shaded habitats, on average 233m apart, and scored these for genetic shell colour polymorphisms. The results show (highly) significant differentiation at most localities, although the genes involved differed per locality. Overall, though, populations in shaded habitats had evolved towards darker shells than those in adjacent open habitats, whereas a 'Cain & Sheppard' diagram (proportion yellow shells plotted against ‘effectively unbanded’ shells) failed to reveal a clear pattern. This might suggest that thermal selection is more important than visual selection in generating this pattern. Trait differentiation, regardless of whether they were plotted against polder age or habitat age, showed a linear increase of differentiation with time, corresponding to a mean rate of trait evolution of 15–31 kilodarwin. In conclusion, C. nemoralis is capable of rapid and considerable evolutionary differentiation over 1–25 snail generations, though equilibrium may be reached only at longer time scales.M. Schilthuizenhttp://repository.naturalis.nl/record/441399http://repository.naturalis.nl/record/441399Blaaskopvliegen zijn bijzondere insecten. De volwassen vliegen zitten vaak op bloemen en bladeren, waar ze opvallen door het gekromde achterlijf of door hun treffende gelijkenis met bepaalde wespen. De vrouwtjes zetten na een agressieve vlucht hun eieren af op wespen, hommels en andere aculeaten zoals Halictus, Lasioglossum en Andrena. Het achterlijfsuiteinde bevat een soort blikopener, waarmee de achterlijfssegmenten van het slachtoffer uit elkaar gewrikt worden. Dan wordt met de stevig gechitiniseerde achterlijfspunt het vlies tussen de segmenten doorgeprikt en een ei afgezet in het abdomen. De larven leven als interne parasiet in de gastheer. Recentelijk werd Leopoldius valvatus bij Amsterdam en Berlijn aangetroffen. Dit waren opmerkelijk genoeg de eerste vondsten uit Nederland en Duitsland. Het is nog onduidelijk of deze vondsten een recente uitbreiding van het areaal betreffen of dat de soort jarenlang over het hoofd gezien is. Het soortenaantal in Nederland komt met deze nieuwe vondst op 33.J.-H. Stuke, C. Saure, G. Pennardshttp://repository.naturalis.nl/record/441422http://repository.naturalis.nl/record/441422De wants Phimodera humeralis komt voor op stuifzanden, waar ze ondergronds leeft van de wortels van zandzegge. De soort is zeldzaam in Europa en de laatste Nederlandse vondst stamt uit 1941. In 2010 werd P. humeralis opnieuw in Nederland aangetroffen, op de Limitische Heide bij Huizen in het Gooi. Gezien de verborgen levenswijze is de populatie hier waarschijnlijk al lange tijd onopgemerkt aanwezig.B. Aukemahttp://repository.naturalis.nl/record/441421http://repository.naturalis.nl/record/441421Kennelijk was 2010 een goed jaar voor nieuwe sprinkhanen en krekels in ons land, want na de vondst van de kiezelsprinkhaan op 18 juli 2010 (zie elders dit nummer) werd op 19 augustus de krekel Eumodicogryllus bordigalensis voor het eerst in Nederland gevonden. Op een verlaten spoorterrein bij Ede werd het opvallende geluid gehoord en nader onderzoek liet zien dat er een populatie van enkele tientallen dieren aanwezig was. De soort komt vooral voor in Zuid-Europa, maar de laatste jaren zijn er diverse vindplaatsen in Midden-Europa bekend geworden. Het is nog onduidelijk hoe de nieuwe plekken bereikt worden.J.H. Bouwmanhttp://repository.naturalis.nl/record/441406http://repository.naturalis.nl/record/441406Bij een inventarisatie van hard substraat in 83 locaties in de Nederlandse Waddenzee, in zoutgehaltes van 10-32 ppt, werden in juli/augustus 2009 in totaal 129 soorten planten en dieren waargenomen. Van deze soorten hadden er 29 een uitheemse of onbekende oorsprong. In aanvulling hierop werd een inventarisatie gemaakt van nog ongepubliceerde waarnemingen in de Waddenzee. Elf soorten en één ondersoort waren nog niet eerder geregistreerd in de Nederlandse Waddenzee. Eén alg, Ceramiaceae sp., met onbekende oorsprong, is vermoedelijk een nieuwe soort voor Europa. Eén zakpijpsoort, Molgula socialis, is nieuw voor Nederland. Deze soort is waarschijnlijk algemeen verspreid in Nederland en is mogelijk zelf inheems. In het verleden was hij vermoedelijk vaak foutief gedetermineerd als de invasieve Amerikaanse zakpijp Molgula manhattensis, die van Molgula socialis alleen onderscheiden kan worden aan de hand van anatomische details. De 11 nieuwe soorten (en één nieuwe ondersoort) verhogen het totaal aantal van in de Waddenzee geregistreerde soorten van uitheemse of onbekende afkomst tot 64. Het relatief hoge aantal nieuwe soorten voor de Waddenzee dat binnen drie weken veldwerk gevonden kon worden, lijkt gerelateerd te zijn aan het feit dat het biodiversiteitsonderzoek in de Waddenzee zich in het verleden nooit specifiek heeft gericht op hard substraat, zoals drijvende steigers in jachthavens. Verder valt niet uit te sluiten dat verschillende soorten zich pas recentelijk in de Nederlandse Waddenzee hebben gevestigd.A. Gittenberger, M. Rensing, H. Stegenga, B.W. Hoeksemahttp://repository.naturalis.nl/record/443278http://repository.naturalis.nl/record/443278We sequenced 665bp of the Cytochrome C Oxidase I (COI) barcoding marker for 257 specimens and 482bp of Elongation Factor 1-α (EF1-α) for 237 specimens belonging to the leafmining subgenus Ectoedemia (Ectoedemia) in the basal Lepidopteran family Nepticulidae. The dataset includes 45 out of 48 West Palearctic Ectoedemia s. str. species and several species from Africa, North America and Asia. Both COI and EF1-α proved reliable as an alternative to conventional species identification for the majority of species and the combination of both markers can aid in species validation. A clear barcode gap is not present, and in some species large K2P intraspecific pairwise differences are found, up to 6.85% in COI and 2.9% in EF1-α. In the Ectoedemia rubivora species complex, the species E. rubivora, E. arcuatella and E. atricollis share COI barcodes and could only be distinguished by EF1-α. Diagnostic base positions, usually third codon positions, are in this and other cases a useful addition to species delimitation, in addition to distance methods. Ectoedemia albifasciella COI barcodes fall into two distinct clusters not related to other characters, whereas these clusters are absent in EF1-α, possibly caused by mtDNA anomalies or hybridisation. In the Ectoedemia subbimaculella complex, both sequences fail to unequivocally distinguish the species E. heringi, E. liechtensteini, E. phyllotomella and one population of E. subbimaculella. DNA barcodes confirm that North American Ectoedemia argyropeza are derived from a European introduction. We strongly advocate the use of a nuclear marker in addition to the universal COI barcode marker for better identifying species, including cryptic ones.E.J. Nieukerken, C. Doorenweerd, F.R. Stokvis, D.S.J. Groenenberghttp://repository.naturalis.nl/record/441432http://repository.naturalis.nl/record/441432Op 12 juli 2010 werd een opvallende, zwarte wesp met donkere vleugels waargenomen in een tuin in St. Michielsgestel. Het bleek te gaan om Isodontia mexicana, een Noord-Amerikaanse langsteelgraafwesp, gespecialiseerd in krekels en sprinkhanen. Deze soort heeft zich in de laatste decennia gevestigd in Zuid- en Midden-Europa. Het zal moeten blijken of de vondst de voorbode is van een stabiel voorkomen in ons land.J. Smit, W. Wijngaardhttp://repository.naturalis.nl/record/441429http://repository.naturalis.nl/record/441429Sinds kort is bekend dat de borstelworm Marenzelleria neglecta in het Noordzeekanaal voorkomt. Dit is de eerste vondst van deze Noord-Amerikaanse soort in Nederland en voor Europa de eerste buiten de Oostzee en de estuaria van de Elbe en de Weser (Duitsland). In dit artikel worden de morfologische verschillen met de verwante M. viridis besproken, evenals de problemen met de naamgeving in de literatuur.G.W.N.M. van Moorsel, D. Tempelman, W. Lewishttp://repository.naturalis.nl/record/447989http://repository.naturalis.nl/record/447989A surprisingly high number of shallow water sponge species (197) were recorded from extensive sampling of natural intertidal and subtidal habitats in Singapore (Southeast Asia) from May 2003 to June 2010. This is in spite of a highly modified coastline that encompasses one of the world’s largest container ports as well as extensive oil refining and bunkering industries. A total of 99 intertidal species was recorded in this study. Of these, 53 species were recorded exclusively from the intertidal zone and only 45 species were found on both intertidal and subtidal habitats, suggesting that tropical intertidal and subtidal sponge assemblages are different and distinct. Furthermore, only a third of the fouling species of sponges from a previous study was recorded in this study, thus suggesting that sponge assemblages from natural and fouling communities in the tropics are different as well. A new species, Forcepia (Forcepia) vansoesti is described from Singapore. Members of this genus possess unique spicules shaped in the form of a pair of forceps. The new species is distinguished from its congeners in having the largest forceps (nearly 300 μm in length) so far recorded in the Indo-Pacific.S.-C. Lim, N.J. de Voogd, K.-S. Tanhttp://repository.naturalis.nl/record/447988http://repository.naturalis.nl/record/447988The zoanthid genus Sphenopus (Cnidaria: Anthozoa: Zoantharia), like many other brachycnemic zoanthids, is found in shallow subtropical and tropical waters, but is uniquely unitary (solitary, monostomatous), azooxanthellate, and free-living. With sparse knowledge of its phylogenetic position, this study examines the phylogenetic position of Sphenopus within the family Sphenopidae utilizing specimens from southern Taiwan and Brunei collected in 1999-2011, and furthermore analyzes the evolution of its unique character set via ancestral state reconstruction analyses. Phylogenetic analyses surprisingly show Sphenopus to be phylogenetically positioned within the genus Palythoa, which is colonial (polystomatous), zooxanthellate, and attached to solid substrate. Ancestral state reconstruction strongly indicates that the unique characters of Sphenopus have evolved recently within Palythoa and only in the Sphenopus lineage. These results indicate that zoanthid body plans can evolve with rapidity, as in some other marine invertebrates, and that the traditional definitions of zoanthid genera may need reexamination.J.D. Reimer, M. Lin, T. Fujiihttp://repository.naturalis.nl/record/440771http://repository.naturalis.nl/record/440771The Iberian Peninsula is a repository for biodiversity, presenting high levels of endemism in both plants and animals. In this peninsular region, brook lampreys confined to small, isolated river basins evolved in allopatry giving rise to evolutionary lineages, as revealed by mitochondrial DNA markers. For a better understanding of the taxonomic status and relationships of Iberian populations of the genus Lampetra, we combined previous data from genetics and morphological analysis (assessed here), and describe three new species of the lamprey genus Lampetra Bonnaterre, 1788 in Portugal. In this region L. planeri actually represent a complex of cryptic species, each having smaller geographic ranges than L. planeri, and consequently, greater vulnerability to extinction. The description of Lampetra alavariensis sp. nov. is based on 36 specimens collected on Ribeira de Mangas, a tributary of river Esmoriz, in Northern Portugal. Lampetra auremensis sp. nov. is described on the basis of 31 specimens collected on Ribeira do Olival, a small tributary of river Nabão (Tagus basin). Finally, Lampetra lusitanica sp. nov. is described based on 38 specimens from Ribeira da Marateca, Sado river basin, the southernmost distribution of the genus Lampetra. The recognition of these new species will contribute to the conservation of these already imperilled taxa and will help prevent the extinction of three important evolutionary lineages.C.S. Mateus, M.J. Alves, B.R. Quintella, P.R. Almeidahttp://repository.naturalis.nl/record/447982http://repository.naturalis.nl/record/447982Shelters such as leaf nests, tree holes or vegetation tangles play a crucial role in the life of many nocturnal mammals. While information about characteristics and availability of these resources may help in conservation planning, nest use gives an indication about a species’ social organisation. The northern giant mouse lemur (Mirza zaza) is threatened by habitat loss within its restricted range. Our aim was to examine nest site preferences of M. zaza and to explore the species’ social organisation by examining sleeping site aggregation size and genetic relatedness within and between such aggregations. In the Ankarafa Forest inside Sahamalaza – Iles Radama National Park, northwestern Madagascar, we radio-tagged five male and three female M. zaza and followed them for 2.5 months during the dry season. We identified sleeping trees and observed animals during emergence in the evening and return in the morning. We compared sleeping trees and microhabitats around nest sites to trees and habitat used during nightly activity and to random sites. We found that nests were well covered by canopy, even during the dry season, and were located near the tree trunk a few meters below the tree top. Nest sites were characterised by large (> 30 cm DBH) and tall trees (>16 m) with many lianas. Up to four animals shared one to three group-exclusive nests for up to 50 days. Two of the nest groups included two and three males with fully developed testes. Relatedness data revealed that the adult males sharing nests were either unrelated or closely related. These data suggest that M. zaza is sleeping in social nest groups including multiple males, which is unusual among nocturnal strepsirrhines. Apart from protecting suitable sleeping trees and discouraging selective logging of large trees, we recommend conducting further studies on the species’ social organisation throughout an entire season.E.J. Rode, K.A-I. Nekaris, M. Markolf, S. Schliehe-Diecks, M. Seiler, U. Radespiel, C. Schwitzerhttp://repository.naturalis.nl/record/441435http://repository.naturalis.nl/record/441435http://repository.naturalis.nl/record/441396http://repository.naturalis.nl/record/441396Prachtvliegen zijn kleine vliegen met meestal getekende vleugels. In Nederland komen 16 soorten voor. De larven van de meeste soorten leven in planten, maar details over de levenswijze zijn vaak slecht bekend. Zo ook van de zeldzame Melieria picta. Tijdens een recent veldbezoek aan Schiermonnikoog werd ontdekt dat de soort zich vermoedelijk vooral ontwikkelt in strandkweek. In dit artikel worden de vier Nederlandse soorten van het genus voorgesteld.J.T. Smithttp://repository.naturalis.nl/record/447985http://repository.naturalis.nl/record/447985The evolution of asymmetric genitalia is a common and recurrent phenomenon in a wide variety of insect taxa. However, little is understood about the evolution of left-right asymmetry in reproductive structures. Since a better knowledge of it could have an important impact on the study of genital evolution, in the present study we investigate the phylogenetic and evolutionary patterns of asymmetric male genitalia in Cyclocephalini. We use a Procrustes distance based method for quantifying asymmetry. Analysis of 119 species belonging to 14 genera revealed a diverse array of asymmetries with a strong indication that asymmetries are more strongly developed in the terminal part of the aedeagus. Further, we find that asymmetries have evolved repeatedly within this small taxon. Micro-CT scans, a technique not employed before in studies of genital asymmetry, are made of several symmetric and asymmetric species. This reveals unexpected asymmetric sclerotised structures inside the otherwise symmetric aedeagus of Cyclocephala amazona, which underlines that asymmetries are not restricted to the exterior of the male genitalia but are also found internally.T. Breeschoten, D.R. Clark, M. Schilthuizenhttp://repository.naturalis.nl/record/441437http://repository.naturalis.nl/record/441437http://repository.naturalis.nl/record/445874http://repository.naturalis.nl/record/445874The great diversity in genital shape and function across and within the animal phyla hamper the identification of specific evolutionary trends that stretch beyond the limits of the group under study. Asymmetry might be a trait in genital morphology that could play a unifying role in the evolutionary biology of genitalia. Here, I review the current knowledge on the taxonomic distribution, phylogenetic patterns, genetics, development, and ecology of asymmetric (chiral) genitalia. Asymmetric genitalia (male as well as female) have evolved from bilaterally symmetric ones (and sometimes vice versa), innumerous times in most animal taxa with internal fertilisation, and especially in Platyhelminthes, Arthropoda, Nematoda, and Chordata. In groups with asymmetric genitalia, chiral reversal (where species carry genitalia that are the mirror image of those in other, congeneric, species) is common, but antisymmetry (both mirror images present within a species) is rare. Although indications exist that, at least in insects, asymmetry evolves as a compensatory response to the evolution of maledominant mating positions, many mysteries remain. Main questions are: (i) is genital asymmetry developmental-genetically linked with other (visceral, external) asymmetries? (ii) is genital asymmetry usually correlated with a change in mating position? (iii) is asymmetry more likely to evolve in response to cryptic female choice or sexually-antagonistic coevolution? (iv) why is antisymmetry so rare and how does chiral reversal evolve? Based on an overview of the taxonomic patterns, I advocate a research program that makes use of the simple, binary nature of left-right asymmetry to test hypotheses for its evolution with experimental and comparative methods. I also provide tables with full or summarised data on (a) genital asymmetry across all animal phyla with internal fertilisation; (b) genera with dextral as well as sinistral species; (c) species with dextral as well as sinistral individuals; (d) genera with symmetric as well as asymmetric species; (e) species with symmetric as well as asymmetric individuals.M. Schilthuizenhttp://repository.naturalis.nl/record/442545http://repository.naturalis.nl/record/442545The pyramidelloidean gastropods newly collected from one stratigraphic section and two spot localities in the Rembang anticlinorium (Middle Miocene, northeastern Java) are described and those of various ages in the collections of the Naturalis Biodiversity Center in Leiden are reviewed. A total of 111 species are covered in this paper; another 22 taxa dealt with by previous authors, of which the material was not available, are briefly commented on in an appendix. The “Rembangian” (Middle Miocene) assemblage consists of 89 species. Four are identified as formerly described species, namely Leucotina speciosa (Adams), Megastomia regina (Thiele), Exesilla dextra (Saurin) and Exesilla splendida (Martin); 52 are proposed as new; most of the others almost certainly represent previously undescribed species, but cannot be named because of inadequate material. Parodostomia jogjacartensis (Martin), Parodostomia vandijki (Martin) and Pyramidella nanggulanica Finlay, described from the Eocene deposits of Java, seem to be restricted to that epoch. The Neogene fauna appears to be composed almost entirely of extinct species. Only Leucotina speciosa (Adams), Megastomia regina (Thiele), Longchaeus turritus (Adams), Pyramidella balteata (Adams), Exesilla dextra (Saurin) and Nisiturris alma (Thiele) are still present in modern Indo-West Pacific faunas. Most Neogene species seem to be endemic of the Indonesian Archipelago; relationships with other West Pacific fossil faunas have been noted for only a few taxa. The relevance of shell characters in generic recognition, namely the protoconch type, the course and/or the inner lirations of the outer lip, and the sculpture (when present), are significant characters. None of them is genus-diagnostic in itself, but their combination distinguishes the various genera. On this basis, genera are revised and include only those species sharing the relevant characters of their respective type species. The new genera Bulimoscilla, Nisipyrgiscus, Turbolidium and Bulicingulina are introduced.E. Robbahttp://repository.naturalis.nl/record/441384http://repository.naturalis.nl/record/441384In this paper a review is presented of the Dutch leptolid (= hydroid) fauna (phylum Cnidaria, class Leptolida). The Dutch faunal boundary has been defined by Boschma (1927) and was based on the presence of lightvessels off the Dutch shores. Though the lightvessels have disappeared this formal faunal boundary has been maintained. A total of 146 species, belonging to 87 genera in 38 families, are shortly described and illustrated. 114 species can be considered truly indigenous Dutch species, of which the occurrence within the Dutch faunal boundaries is substantiated by material in collections or records in the faunistic literature. Of seven species either material or convincing records are available but their geographical distribution indicates that they do not form part of the Dutch fauna, whereas of 25 species the distributional pattern indicates that sooner or later they will be may become part of the Dutch fauna.W. Vervoort, M.A. Faassehttp://repository.naturalis.nl/record/441403http://repository.naturalis.nl/record/441403Van de esdoorntandvlinder Ptilodon cucullina waren tot 1990 slechts weinig waarnemingen bekend. Aan de belangrijkste voedselplant kon dat niet liggen want veldesdoorn is overal veelvuldig aangeplant en verwilderd. Sinds 1990 wordt de soort in de zuidelijke helft van het land steeds meer waargenomen; een ontwikkeling die ook in het aangrenzende België niet onopgemerkt is gebleven. Waarschijnlijk speelt het warmere klimaat hierbij een belangrijke rol. De verwachting is dat de soort zich de komende jaren ook boven de grote rivieren sterk zal gaan uitbreiden.F.A.H.E. Posthttp://repository.naturalis.nl/record/442547http://repository.naturalis.nl/record/442547We compile all published information on the Recent Pentastomida published to date, including complete synonyms, and species distributions. All host species are cited and their names updated. A taxonomical history of the group, a synthesis of phylogenetic information for the taxon, and a summary of the pentastomes by host groups, with accounts of the illneses they provoke, are also provided.M.L. Christoffersen, J.E. De Assishttp://repository.naturalis.nl/record/441431http://repository.naturalis.nl/record/441431Sluipvliegen vormen een soortenrijke groep, waarvan de larven leven in andere insecten. Veel soorten zijn gebonden aan vlinderrupsen. In dit artikel worden zes nieuwe soorten sluipvliegen voor Nederland gemeld. Hiermee komt het totaal aantal Nederlandse soorten op 331. Daar is dan de vondst van de bijzondere wantsenparasiet Trichopoda pennipes niet bijgeteld. Hiervan wordt aangenomen dat het een incidentele import betreft.Th. Zeegers