Perdita is a large genus of bees native to North America, particularly diverse in the desert regions of the United States and Mexico. There are over 700 recognized species and subspecies of Perdita, plus some 200 more as yet unnamed.
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。