Ectemnius alphaeus female Ectemnius arcuatus female Ectemnius atriceps female Ectemnius borealis female Ectemnius cephalotes female Ectemnius cephalotes male Ectemnius continuus female Ectemnius dilectus female Ectemnius lapidarius female Ectemnius lapidarius male Ectemnius ruficornis female Ectemnius ruficornis male Ectemnius rufifemur female Ectemnius spiniferus female Ectemnius spiniferus male