Pandivirilia conspicua
 
Thereva flavipilosa male
  
Thereva brunnea female
 
Thereva aurofasciata male
 
Thereva johnsoni female
 
Thereva duplicis female
 
Thereva macdunnoughi
 
Thereva kristinae male
 
Spiriverpa albiceps
 
Thereva webbi female
 
Thereva fucatoides female
 
Thereva albopilosa
 
Thereva kristinae female
 
Thereva egressa female
 
Thereva utahensis female
 
Dialineura gorodkovi
 
Thereva brunnea male
 
Thereva elizabethae male
 
Thereva egressa female
 
Thereva cingulata female
 
Psilocephala vicina
 
Thereva elizabethae male
 
Thereva duplicis male
 
Palliocephala occidentalis
 
Thereva krafti female
 
Psilocephala vicina
 
Cliorismia bussi
 
Spiriverpa cinerascens
 
Thereva kristinae male
 
Spiriverpa albiceps
 
Thereva duplicis female
 
Thereva fucatoides female
 
Thereva webbi female
 
Thereva duplicis female
 
Thereva kristinae male
 
Thereva johnsoni female
 
Thereva aurofasciata male
 
Dialineura gorodkovi
 
Thereva brunnea female
 
Thereva flavipilosa male
 
Thereva webbi male
 
Thereva strigipes female
 
Pandivirilia conspicua
 
Spiriverpa albiceps
 
Tabuda planiceps
 
Thereva utahensis female
 
Cliorismia bussi
 
Thereva duplicis male
 
Psilocephala vicina
 
Thereva krafti female
 
Palliocephala occidentalis
 
Thereva elizabethae male
 
Thereva cingulata female
 
Thereva brunnea male
 
Thereva cingulata female
 
Thereva aurofasciata male
 
Thereva fucatoides male
 
Thereva johnsoni male
 
Dialineura gorodkovi
 
Thereva utahensis female
 
Thereva egressa female
 
Thereva krafti female
 
Thereva kristinae female
 
Thereva duplicis male
 
Pandivirilia conspicua
 
Thereva kristinae female
 
Thereva utahensis male
 
Thereva elizabethae female
 
Thereva flavipilosa male
 
Thereva fucatoides male
 
Thereva elizabethae female
 
Thereva johnsoni male
 
Spiriverpa cinerascens
 
Thereva albopilosa
 
Thereva strigipes female
 
Thereva macdunnoughi
 
Thereva brunnea male
 
Thereva aurofasciata female
 
Thereva johnsoni female
 
Dichoglena nigrina
 
Thereva foxi female
 
Tabuda planiceps
 
Thereva krafti male
 
Thereva utahensis male
 
Thereva krafti male
 
Dichoglena nigrina
 
Thereva webbi male
  
Thereva egressa male
 
Thereva webbi male
 
Cliorismia bussi
 
Thereva macdunnoughi
 
Thereva foxi female
 
Thereva albopilosa
 
Spiriverpa cinerascens
 
Thereva strigipes female
 
Thereva aurofasciata female
 
Thereva elizabethae female
 
Thereva fucatoides male
 
Thereva johnsoni male
 
Thereva webbi female
 
Thereva fucatoides female
 
Thereva webbi male
 
Dichoglena nigrina
 
Thereva egressa male
 
Thereva utahensis male
 
Thereva krafti male
 
Tabuda planiceps
 
Thereva foxi female
 
Thereva aurofasciata female
 
Palliocephala occidentalis