01216nas a2200133 4500008004100000245012200041210006900163260001200232300001000244490000700254520065900261100002800920856013400948 2001 eng d00aMermithid parasitism (Nematoda: Mermithidae) in Ochlerotatus cantans (Meigen) (Diptera: Culicidae) in Denmark)0 aMermithid parasitism Nematoda Mermithidae in iOchlerotatus canta c08/2001 a21-240 v103 a

An unidentified mermithid species parasitizing Ochlerotatus cantons is presented, being the first mosquito-parasitic mermithid recorded from Denmark. The parasitic development is initiated in the larval host, continues in the pupa and is completed in the abdominal haemocoel of the adult, the mean body length of the parasite increasing from about 1mm to 12-13 mm. From 1 to 5 mermithid worms were found per adult host. Up to 87% of male and female mosquitoes hatched in the laboratory or swept in the herbaceous layer surrounding woodland pools were parasitized. The prevalence of the parasite varied between pools.

1 aNielson, Boy, Overgaard uhttps://e-m-b.myspecies.info/content/mermithid-parasitism-nematoda-mermithidae-iochlerotatus-cantansi-meigen-diptera-culicidae-de00463nas a2200121 4500008004100000245007700041210006900118260001200187300000700199490000600206100002800212856010100240 2001 eng d00aAdditional notes on Ochlerotatus geniculatus (Olivier) in Denmark0 aAdditional notes on iOchlerotatus geniculatusi Olivier in Denmar c03/2001 a170 v91 aNielson, Boy, Overgaard uhttps://e-m-b.myspecies.info/content/additional-notes-iochlerotatus-geniculatusi-olivier-denmark01425nas a2200133 4500008004100000245009900041210006900140260001200209300001000221490000600231520090200237100002801139856012401167 1998 eng d00aThe water mite Thyas barbigera Viets (Hydrachnellae: Thyasidae) parasitizing mosquitoes0 awater mite iThyas barbigerai Viets Hydrachnellae Thyasidae paras c08/1998 a10-120 v23 a

The larvae of several species of water mites are ectoparasites on adult mosquitoes, the majority of the mites recorded belonging to the genera Thyas (Thyasidae) and Arrenurus (Arrenuridae). Mullen (1975) presented 238 world-wide records of acarine parasites of mosquitoes but more than half of the observations concerned unidentified or doubtfully identified mites. In Europe parasitism of mosquitoes by water mites is mainly recorded from England and Germany (Mullen, 1975). From Denmark only Thyasides dentata (Thor) (on Aedes flavescens
(Müller) and Arrenurus globator (Müller) (on Anopheles maculipennis Meigen) have been recorded (Lundblad, 1927). However, Danish woodland mosquitoes are frequently parasitized by water mites. In this paper aspects of the parasitic association are analysed.

1 aNielson, Boy, Overgaard uhttps://e-m-b.myspecies.info/content/water-mite-ithyas-barbigerai-viets-hydrachnellae-thyasidae-parasitizing-mosquitoes