#despicata

2025-09-29

Why a #mite of the #Parasitidae (#Mesostigmata), apparently genus #Parasitellus, seemingly attacks moth #Pyrausta #despicata (Crambidae). Parasitellus develops in #bumblebee #nests and uses them for dispersal (#phoresy) to other nests, thus they leave their hosts on blossoms and wait for new hosts to be carried to new nests. The moth was detected by the mite as a #nonsuitable #phoretic #host.

© #StefanFWirth #Berlin 2025

Visit my new YouTube Video:
youtu.be/gRAT7CIKWTk?si=hb2LC1

Photos
©S.F. Wirth

A mite of Parasitidae (Mesostigmata), seemingly genus Parasitellus, on a common dandelion flower head examines moth Pyrausta despicata (Crambidae) for whether it might be a suitable host for dispersal (phoresy/phoresis). It detects the moth as not suitable as it requires bumblebees to get into their nests, where the mite feeds and finishes its life-cycle. © Stefan F. Wirth, Berlin park Rehberge, footage end of April, editing September 2025Moth Pyrausta despicata (Crambidae) feeding nectar on a flower head of common dandelion on a dry meadow © Stefan F. Wirth, Berlin park Rehberge, footage end of April, editing September 2025
2025-08-05

My #YouTube #article points to my upcoming nature #video, showing interesting #biological #interactions on a common #dandelion inflorescence. A #mite (#Parasitellus sp.) appears to be attacking a #moth (#Pyrausta #despicata), but in reality, this is merely a #mistake by the mite, which is actually looking for a bee, presumably bumblebee, as a #phoretic #host for #dispersal.

©#StefanFWirth Berlin 2025

Reference

YouTube article S. F. Wirth (2025):
youtube.com/post/UgkxP4oYFemnF

#Photos
©S.F. Wirth

Head of the moth Pyrausta despicata in side view, sitting in a flower head of the common dandelion in Berlin urban park Rehberge Berlin,between April and May 2025 © Stefan F. WirthUndetermined phoretic mite of genus Parasitellus (Parasitidae, Mesostigma, Parasitiformes), sitting on a flower head of the common dandelion in Berlin urban park Rehberge Berlin,between April and May 2025 © Stefan F. Wirth
It's a video frame, thus the reduced photo qualityUndetermined phoretic mite of genus Parasitellus (Parasitidae, Mesostigma, Parasitiformes), "attacks" moth Pyrausta despicata on a flower head of the common dandelion to check, whether it is a suitable carrier or not,  Berlin urban park Rehberge Berlin, between April and May 2025 © Stefan F. Wirth
It's a video frame, thus the reduced photo qualityCommon dandelion flower head, Berlin urban Park Rehberge, April/May 2025, © Stefan F. Wirth

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