Natural History Photographs




Flies
Neoitamus spec.
Hasliberg; 30 June - 3 July 2008. Left, male; right, female.
Villa cf. cingulata
Nederlands:Kalkvilla
Hasliberg; 10 July 2008.
Bombylius semifuscus
Innertkirchen (ca. 1400 m); 9 July 2008.
Mesembrina mystacea
Rosenlaui; 1 July 2008.
Stratiomys chamaeleon
Authority:(Linnaeus, 1758)
Nederlands:Kalklangsprietwapenvlieg
English:clubbed general
Reichenbachfall; 29 June 2008.

Several of these magnificent Soldierflies were feeding on Hogweed growing on a small patch of unused land close to the Reichenbachfall.
Sericomyia bombiformis
Synonyms:Arctophila bombiformis
Nederlands:Grote fophommel
Deutsch:Hummel-Gebirgsschwebfliege
Hasliberg; 3 July 2008.

As its name suggests, this hoverfly mimics bumblebees. The match between model and mimic is often not very well conveyed by photographs, since they freeze the insect, eliminating all dynamic aspects. This might apply to these photos, too - they obviously show a fly mimicking a bumblebee. But in reality I perceived a bumblebee - only to realize after a minute or so it might not be a bee at all! Since very similar bumblebees were rather common, and bumblebees can sting, this species might well enjoy generous protection from its color pattern.
Chrysotoxum arcuatum
Nederlands:Bolle fopwesp
Deutsch:Späte Wespenschwebfliege
Innertkirchen (ca. 1400 m); 9 July 2008.
Hasliberg; 6 July 2008.
Chrysotoxum bicinctum
Nederlands:Donkere fopwesp
Deutsch:Zweiband-Wespenschwebfliege
Hasliberg; 5 - 9 July 2008.

While I photographed this beautiful hoverfly, it expelled a droplet of yellow fluid - the meconium. This consist in metabolic waste products accumulated during metamorphosis. As the meconium is expelled shortly upon emergence, this hoverfly had only just eclosed before I spotted it.

Hasliberg; 6 July 2008.
Epistrophe grossulariae
Nederlands:Zwartspriet-bandzweefvlieg
Deutsch:Große Wiesenschwebfliege
 
Hasliberg; 6 July 2008. Hasliberg; 6 - 10 July 2008.
Hasliberg; 6 - 10 July 2008.
Dasysyrphus pinastri
Nederlands:Zwartspriet-wimperzweefvlieg
Deutsch:Mondfleck-Waldschwebfliege
Rosenlaui; 1 July 2008.
Eristalis jugorum
Nederlands:Snuitbijvlieg
Deutsch:Gebirgs-Keilfleckschwebfliege
Hasliberg; 29 June 2008.
Eristalis nemorum
Nederlands:Puntbijvlieg
Hasliberg; 29 June 2008.
Leucozona laternaria
Nederlands:Donkere melkzweefvlieg
Hasliberg; 10 July 2008.
Leucozona lucorum
Nederlands:Withaar-melkzweefvlieg
Deutsch:Weißbandschwebfliege
Innertkirchen (ca. 1400 m); 9 July 2008.
Leucozona glaucia
Nederlands:Doorzichtig-gele melkzweefvlieg
Hasliberg; 5 - 10 July 2008.
Melangyna spec.
Hasliberg; 5 July 2008. Reichenbachfall; 29 June - 5 July 2008.
Meliscaeva auricollis
Nederlands:Variabel elfje
Rosenlaui; 1 July 2008.
Paragus cf finitimus
Hasliberg; 3 July 2008.
Platycheirus spec.
Hasliberg; 8 July 2008.
Scaeva pyrastri
Nederlands:Witte halvemaanzweefvlieg
Deutsch:Späte Großstirnschwebfliege
Hasliberg; 5 July 2008.
Scaeva selenitica
Nederlands:Gele halvemaanzweefvlieg
Deutsch:Frühe Großstirnschwebfliege
Hasliberg; 5 July 2008.
Sericomyia lappona
Nederlands:Donkere veenzweefvlieg
Deutsch:Weißbandtorfschwebfliege
Innertkirchen (ca. 1400 m); 9 July 2008.
Volucella pellucens
Nederlands:Witte reus
Hasliberg; 10 July 2008.
Xanthandrus comtus
Nederlands:Platte zweefvlieg
Deutsch:Raupen-Plattbauchschwebfliege
Hasliberg; 5 July 2008.
Haematopota spec.
Hasliberg; 3 - 10 July 2008.
Hybomitra spec.
Hasliberg; 6 July 2008.
Hybomitra caucasica
Hasliberg; 9 July 2008.
Hybomitra auripila
Authority:(Meigen, 1820)
Nederlands:Goudhaarknobbeldaas
Norsk:Gullhårsklegg
Hasliberg; 5 July 2008.
Tabanus bromius
Authority:Linnaeus, 1758
Nederlands:Kleine runderdaas
English:Band-eyed brown horsefly
Deutsch:Gemeine Viehbremse
Norsk:Gråklegg
Hasliberg; 4 - 10 July 2008.