INDEX
2011 Sightings
Some people get a Diary for Christmas, and fill it out for a week.
Others keep it going for decades. I'm in the first category.
While it lasts therefore,these are mostly first sightings for the year.
- January 19:
- Episyrphus balteatus female.
- February 8:
- March 19:
- Episyrphus balteatus female.
- March 24:
- Cheilosia pagana males.
- Eristalis tenax female.
- March 25:
- Parasyrphus punctulatus females (including melanic) and males.
- Platycheirus albimanus male.
- Syrphus torvus male.
- March 28:
- Cheilosia vernalis males.
- Eupeodes luniger male.
- April 7:
- Eristalis pertinax males.
- Melanostoma scalare males.
- April 8:
- Rhingia campestris male.
- Sphaerophoria scripta male.
- April 9:
- Epistrophe eligans males and females.
- Eristalis pertinax females.
- Melangyna cincta males.
- Platycheirus albimanus females.
- Syrphus ribesii female. (Yes, I know, it might be S. "rectus".)
- Syrphus torvus female.
- April 10:
- Brachyopa pilosa males at Salix alba. Humeri grey-dusted, scutellum yellow, circular antennal pit.
- Eupeodes luniger females.
- Neoascia tenur males.
- April 12:
- Baccha elongata males.
- Cheilosia urbana male.
- Cheilosia variabilis males.
- Eristalis interrupta males.
- Helophilus hybridus male.
- Helophilus pendulus males and female.
- Melanostoma scalare females (and males).
- Rhingia campestris females (and males).
- April 17:
- Criorhina ranunculi red-tailed male and female.
- Myathropa florea female.
- April 19:
- Brachypalpus laphriformis female.
- Dasysyrphus venustus male.
- Didea fasciata female.
- April 21:
- Cheilosia albipila female.
- April 23:
- Anasimyia contracta female.
- Anasimyia lineata males.
- Eristalinus sepulchralis male.
- April 25:
- Parhelophilus versicolor female.
- April 27:
- Brachyopa insensilis males and female at Beech tree. Scutellum front edge dusted, no antennal pit.
- Brachypalpoides lentus male.
- Brachypalpus laphriformis male.
- Criorhina floccosa males.
- Epistrophe melanostoma female.
- Eristalis intricaria male.
- Ferdinandea cuprea female.
- Melangyna cincta female.
- Pipizella viduata male.
- Xanthogramma citrofasciatum female.
- Xylota segnis males.
- May 1:
- Cheilosia albitarsis male. Square apical segment of front tarsi.
- Criorhina asilica male.
- Criorhina floccosa females.
- Criorhina ranunculi buff-tailed female ovipositing beside Beech tree.
- Eristalis horticola female.
- Merodon equestris male and female.
- May 4:
- Eristalis horticola male.
- Melanogaster hirtella males and females.
- Neoascia sp female, species yet to be determined.
- Xanthogramma pedissequum female.
- May 7:
- Eumerus funeralis male.
- Leucozona lucorum female.
- Parhelophilus frutetorum male.
- May 8:
- Eristalis arbustorum female.
- Parhelophilus frutetorum female.
- Volucella bombylans white-tailed male.
- May 12:
- May 19:
- Chrysotoxum cautum female.
- Criorhina berberina females.
- Volucella inflata male.
- Volucella pellucens males.
- May 21:
- Chrysotoxum bicinctum male.
- Eumerus ornatus male.
- Portevinia maculata males and female.
- May 23:
- May 25:
- Chalcosyrphus nemorum males .
- June 1:
- Microdon myrmicae female. Orange Scutellum. Damp acid heath habitat suggests not M. mutabilis.
- Eupeodes latifasciatus male.
- June 2:
- Lejogaster metallina female.
- Neoascia podagrica male.
- Sericomyia silentis male.
- Trichopsomyia flavitarsis female.
- June 10:
- Meliscaeva auricollis males and females.
- June 14:
- Chrysogaster solstitialis male.
- Xylota sylvarum male.
- June 21:
- Cheilosia illustrata males and female.
- Leucozona laternaria female.
- Melangyna labiatarum male.
- Pipizella virens female.
- June 24:
- Epistrophe grossulariae male and female.
- June 27:
- Chrysotoxum festivum male.
- Villa cingulata female. Not a hoverfly, but a scarce Bee-fly, so worth a mention.
- July 2:
- Chrysotoxum verralli female.
- Melanostoma mellinum female.
- Platycheirus fulviventris female.
- July 4:
- Eupeodes corollae females.
- July 11:
- Cheilosia proxima female and male.
- Cheilosia soror female.
- July 12:
- Meliscaeva cinctella female.
- Scaeva pyrastri females and males.
- July 13:
- Eristalinus aeneus male.
- Volucella zonaria male.
- July 22:
- Cheilosia scutellata males.
- Cheilosia impressa male and female.
- July 28:
- Asilus crabroniformis an impressive Robber Fly. Hordes of Syrphus and Episyrphus.
- July 29:
- August 3:
- Platycheirus (Pyrophaena) granditarsus male.
- August 5:
- Syrphus vitripennis males and females. Plenty of these of course. I don't believe they're the alleged Syrphus rectus.
- August 8:
- Cheilosia bergenstammi male.
- Xanthandrus comtus female.
I didn't give up at this point... just never saw a new species for the rest of the year.
Many familiar ones weren't seen, such as Dasysyrphus albostriatus, Leucozona glaucia, Helophilus trivittatus.
A couple more entries then, of late fliers.
November 25:
December 25:
- Episyrphus balteatus male.
- Platycheirus albimanus female on flowering Hebe. A very late date for that species.
