Omicron ypsilon
Omicron vexatum
Omicron tuberculatum
Omicron totonacum
Omicron thoracicum
Omicron tegulare
Omicron splendens
Omicron spegazzinii
Omicron rusticum
Omicron rufiscutum
Omicron ruficolle
Omicron rubellulum
Omicron rubefactum
Omicron reliquum
Omicron regulum
(tree size 2)
Omicron regulus
Omicron reguloide
Omicron pusio
Omicron propodeale
Omicron procellosum
Omicron paraspegazzinii
Omicron paranymphum
Omicron opifex
Omicron nymphale
Omicron notabile
Omicron nanum
Omicron minutum
Omicron lustratum
Omicron lubricum
Omicron laevis
Omicron lacerum
Omicron histrionicum
Omicron gribodoide
Omicron graculum
Omicron gondwanianum
Omicron globicolle
Omicron garrulum
Omicron furiosum
Omicron foxi
Omicron flavonigrum
Omicron elephas
Omicron deplanatum
Omicron deminutum
Omicron criticum
Omicron conclamatum
Omicron cingulatus
Omicron belti
Omicron aviculum
Omicron auropilosum
Omicron aurantiopictum
Omicron atrata
Omicron aggressor
Omicron aequale
(tree size 2)
Omicron acapulcense
(tree size 1)
Omicron microscopicum