FOUR NEW BEES OF THE GENUS PERDITA COLLECTED BY DR L O HOWARD IN MEXICO - COCKERELL, TDA (My University, 1899)
VERHANDLUNGEN DER ZOOLOGISCH BOTANISCHEN GESELLSCHAFT IN WIEN
Keywords: NEW BEES, GENUS PERDITA, L O HOWARD, MEXICO; CIENCIAS AGRARIAS; BIOLOGIA ANIMAL; ZOOLOGIA GENERAL