Suillia convergens

Suillia convergens

Heleomyzidae are small to medium-sized flies which vary in colour from yellow to reddish yellow or reddish brown to black. The wings often have small but distinctly longer, well-spaced spines mixed with the shorter spines along the leading edge and the crossveins are often clouded.
Naked fly he doesn't really look albino... but his color and beefy look make him seem like his outer covering has been stripped off
If I don't get an ID for the fly from BugGuide, I think the mushroom may be Neolentinus kauffmanii  Fall,Geotagged,Suillia convergens,United States

Appearance

"Wings entirely hyaline; arista pubescent; male: fore and hind femora greatly thickened; a short, stout, downwardly directed thorn at anterior distal end of fore metatarsi; fore femora and coxae with very long hairs below."
"The absence of wing infuscations and of scutellar hairs or setae usually distinguishes this species from others in the genus." (Gill, 1962)

Naming

Suillia loewi

Distribution

Alaska to Newfoundland, and south to California and North Carolina.

References:

Some text fragments are auto parsed from Wikipedia.

http://bugguide.net/node/view/906033
http://www.americaninsects.net/f/suillia-convergens.html
Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassInsecta
OrderDiptera
FamilyHeleomyzidae
GenusSuillia
SpeciesSuillia convergens