TY - JOUR T1 - Mermithid parasitism (Nematoda: Mermithidae) in Ochlerotatus cantans (Meigen) (Diptera: Culicidae) in Denmark) JF - European Mosquito Bulletin Y1 - 2001 A1 - Nielson, Boy Overgaard SP - 21 EP - 24 AB -

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.

VL - 10 ER - TY - JOUR T1 - Additional notes on Ochlerotatus geniculatus (Olivier) in Denmark JF - European Mosquito Bulletin Y1 - 2001 A1 - Nielson, Boy Overgaard SP - 17 VL - 9 ER - TY - JOUR T1 - The water mite Thyas barbigera Viets (Hydrachnellae: Thyasidae) parasitizing mosquitoes JF - European Mosquito Bulletin Y1 - 1998 A1 - Nielson, Boy Overgaard SP - 10 EP - 12 AB -

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.

VL - 2 ER -