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    • Empis

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Recent observations

Photos / Sounds

Square

Observer

kueda

Date

March 21, 2015 01:50 PM PDT

Description

Many dance flies present prey as nuptial gifts as a part of their mating rituals, but as Powell and Hogue write in California Insects, "The strangest habits are exhibited by a few species in which males secrete material from the digestive tract which is formed into a frothy, white ball or "balloon". This balloon either entraps a small prey or is substiuted for prety in the courtship gift-giving sequence" (p. 161). This balloon clearly has prey within, perhaps some kind of hemipteran.

Ron and I were pretty flabbergasted as we watched these two engage in mid-air copulation, their aerial control so perfect that I was able to get this picture even though each fly couldn't have been more than 7 mm long.

Jack Owicki has this great BG photo that spawned an even greater discussion: http://bugguide.net/node/view/267952/bgimage.

I suspect this is Empis and not another genus in Empidinae due to the balloon-forming behavior and the long proboscis, but I'd love correction! Habitat was very close to a running creek, vegetation was riparian, some willow, but mostly oaks and maples.

Photos / Sounds

Observer

ericisley

Date

March 13, 2015

Description

This fly reminded me of a Robber fly but I am not sure and if it is one, it will be the first of it's kind I have seen locally

Photos / Sounds

Observer

patsimpson2000

Date

March 11, 2015 10:46 AM PDT

Description

On Encelia californica.
Ref: http://nathistoc.bio.uci.edu/diptera/Empis.htm

Photos / Sounds

12244466535 0171bdc5c1 s

What

Dance Fly Empis spectabilis

Observer

keimwj

Date

April 30, 2013 10:48 AM EDT

Description

30 Apr 2013.
Bowman's Hill Wildflower Preserve, Bucks Co, PA.
Female.
Found on a stone wall on a bridge over a wooded creek.
ID courtesy of John Ascher:
bugguide.net/node/view/889041#1759506

Photos / Sounds

Square

Observer

mcduck

Date

February 8, 2008

Place

(Somewhere...)

Description

~8mm total length. Found this fly on Argyranthemum frutescens in our garden. (live oak/chaparral habitat).

Photos / Sounds

Square

Observer

mcduck

Date

March 22, 2008

Place

(Somewhere...)

Description

~5mm total length. Saw these two flying about slowly in our yard in the mid afternoon & tried to photograph them in the air, but couldn't get them in focus. They finally landed on a Ceanothus bush. Tentative ID by Isaac Winkler @ BugGuide.

Photos / Sounds

13614340114 a80aa2dd52 s

Observer

jaykeller

Date

April 1, 2014 03:11 PM PDT

Photos / Sounds

11364811974 7c3ae0d63d s

Observer

annesorbes

Date

May 26, 2013 10:42 AM CEST

Description

Dagger fly male resting on a dew covered daisy in a wet meadow. Beynat, Limousin, France.

Empis marqueté mâle posé sur une marguerite couverte de rosée dans une prairie humide. Beynat, Limousin, France.

Photos / Sounds

11351630934 2f53365451 s

Observer

annesorbes

Date

May 26, 2013 10:40 AM CEST

Description

Dagger fly female gathering nectar of a wood scabious flower covered with dew in a wet meadow. Beynat, Limousin, France.

Empis marqueté femelle butinant une fleur de knautie des bois couverte de rosée dans une prairie humide. Beynat, Limousin, France.

Photos / Sounds

Observer

calopteryx

Date

April 28, 2013 03:29 PM EDT

Description

Empis sp. cf. Empis spectabilis (Diptera: Orthorrhapha: Empidoidea: Empididae: Empidinae).

Occoquan Regional Park, Fairfax County, VA 28 April 2013

Photos / Sounds

Observer

lfelliott

Date

April 1, 2012 02:20 AM CDT

Description

DIP Empidae Empis

Photos / Sounds

Observer

marcello

Date

April 16, 2013 12:30 PM CEST

Description

Identification by diptera.info via specimens.

First discovery for Italy

Publication on Studia dipterologica 20 (1) 2013: 169–170

View all observations

Description from Wikipedia

Empis is a genus of dance fly, in the fly family Empididae. It contains the following subgenera and species:

No range data available.