View allAll Photos Tagged perturbator
L: 11-14mm
biology: B. Lentus is a forest species (edges and openings) associated with mature trees of Fagus, Picea and Quercus and including evergreen oak forest. Larvae develop in fungi-infested dead-wood (Coarse woody debris) . Imagines fly from May till August. Adults may mimicking sawflies (Tenthedro, Macrophya) and/or spider hunting wasps (Priocnemis perturbator) / Die Rote Holzmulmschwebfliege ist eine Waldart, deren Larven sich im verpiilzten Totholz alter Buchenwälder entwickelt. Die Imagines fliegen von Mai bis August.
Phylum: Arthropoda LATREILLE, 1829 (arthropods, Gliederfüßer)
Subphylum: Hexapoda BLAINVILLE, 1816 (Sechsfüßer)
Class: Insecta LINNAEUS, 1758 (insects, Insekten)
Subclass: Pterygota LANG, 1888 (Fluginsekten)
Infraclass: Neoptera MARTYNOV, 1923
Order: Diptera LINNAEUS, 1758 (true flies, mosquitoes & gnats, Fliegen & Mücken)
Suborder: Brachycera SCHINER, 1862
Infraorder: Muscomorpha [Syn.: Cyclorrhapha]
Superfamily: Syrphoidea
Family: Syrphidae SAMOUELLE, 18191 (hoverflies or flower flies, Schwebfliegen)
Subfamily: Eristalinae NEWMAN, 1834 (drone flies)
Tribus: Milesiini RONDANI, 1845
Subtribus: Xylotina (Langbauchschwebfliegen), i.e. Xylota s.l. MEIGEN, 1822
[det. D&JP Balmer, 2012, based on this photo]
Genus: Brachypalpoides HIPPA, 1978
Brachypalpoides lentus MEIGEN, 1822 (Rote Holzmulm-Schwebfliege, Schwarzfuß-Langbauchschwebfliege)
[det "tlegrand", 2017, based on this photo via diptera.info]
NE-Slovakia, Slovak Paradise (Slovak: Slovenský raj) National Park, vic Cingov, 600-800m asl., 27.06.2012
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100mm (canon 2.8), 1/160 s, f/9.0, ISO100, 0EV, no flash, hand-held
IMG_1433
The subgenital plate has the two terminal lobes angularly pointed, with rows of very long, curved hairs along the lateral margins and the ventral surface shining and slightly swollen basally, with short hairs over much of the surface.
The subgenital plate has the two terminal lobes angularly pointed, with rows of very long, curved hairs along the lateral margins and the ventral surface shining and slightly swollen basally, with short hairs over much of the surface.
Apparently checking (with a fairly close approach) a possibly freshly killed (at least apparently immobile) sand bear Arctosa perita (lycosidae) before heading up the bank maybe to investgate potential nesting sites. Unfortunately it was not determined whether the spider was carried off as a prey item (although this seems probable).