Evaluation of Trombidioid (Acari: Parasitengona) Larval Exuviae And Its Importance In Diagnosis

Abstract

The larva of trombidioid which parasitic on host separates from host after enough feeding and pass to protonymph (inactive) stage, then it passes to deutonymph stage by leaving larva skin (exuviae). In this study, the parasitic larvae, which were collected from host and deutonymphs, which obtained from other larvae on host, were identified as the same species. This identification was achieved by the comparison of larvae and exuviae that has been released while passing deutonymph stage. With this method, three mite species, Allothrombium sp., Trichotrombidium muscarum (Riley, 1878), Trombidium holosericeum (Linnaeus, 1758) were diagnosed from samples                                                                                                            collected from one harvestmen (Opilionida)

and two fly (Diptera) species (Rhagio sp., Musca domestica). At the same time, it was determined that larval skins, observed in previous studies but not emphasized to date, showed the same characteristics as the larvae and could be used in morphological diagnosis.

Trombidioid (Acari: Parasitengona) Larva Derilerinin Değerlendirilmesi ve Teşhisteki Önemi

Abstract

Konak üzerinde parazit olan trombidioid larvası, yeteri kadar beslendikten sonra konaktan ayrılır ve protonimf (hareketsiz) safhasına, sonrasında larva derisini atarak deutonimf safhasına geçer. Bu çalışmada, konak üzerinden toplanan parazit larvalar ile konak üzerindeki diğer larvalardan elde edilen deutonimflerin aynı tür olduğu tespit edildi. Bu tespit, larvalar ile deutonimfe geçerken atılan larva derilerinin (exuviae) karşılaştırılmasıyla sağlandı. Bu yöntemle, bir otbiçen (Opilionida) ve iki sinek (Diptera) türü (Rhagio sp., Musca domestica) üzerinden toplanan parazit akarlardan, Allothrombium sp., Trichotrombidium muscarum (Riley, 1878) ve Trombidium holosericeum (Linnaeus, 1758) olmak üzere üç akar türü teşhis edildi. Aynı zamanda daha önceki çalışmalarda gözlenen ancak bugüne kadar üzerinde durulmayan larva derilerinin, larvalar ile aynı karakteristik özellikleri gösterdiği ve morfolojik teşhiste kullanılabileceği belirlendi

Keywords

• Acari,biyoloji,deri değiştirme,hayat evresi,Trombidioidea

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