Key to the Mallophora of the United States
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Abdomen entirely black......................................................................................................................2
Abdomen entirely yellow/white or some combination of yellow/white and black......................................3 -
Hairs of scutellum black, beard yellow................................................................Mallophora atra
https://www.inaturalist.org/observations/16615108
Hairs of scutellum yellow, beard black........................................................Mallophora leschnaulti
https://www.inaturalist.org/observations/8198405 -
Abdomen entirely yellow....................................................................................Mallophora fautrix
https://www.inaturalist.org/observations/1826585
Abdomen black and yellow/white................................................................................................................4 -
Abdomen mostly yellow but with black tip; body coloration overall dark yellow...................................................Mallophora orcina
https://www.inaturalist.org/observations/811603
Abdomen mostly white but with black middle; body coloration overall whitish...................................Mallophora bomboides
https://www.inaturalist.org/observations/8508244
