Keywords: macrophotograph usgs biml andrena bee hymenoptera taxonomy:binomial=andrena imitatrix taxonomy:binomial=andrenaimitatrix maryland bug bugs bees animal animals animalia arthropod arthropods arthropoda insect insects insecta aculeata anthophila apoidea mining bees miningbees mining bee miningbee andrenidae andreninae andrena imitatrix andrenaimitatrix female back dorsal scrapteropsis pwrc patuxent wildlife research center usgs pollinator pwrcpatuxentwildliferesearchcenterusgspollinator zerene stacker zerenestacker zerene stacked macro macro photography macrophotography droege stackshot usgsbiml black background Maryland Maryland |