Morphological wing measurements of 111 drosophilid species

Content of datafile (repeated from README.txt):
Species: species identifier hopefully self explanatory, normally [first letter in genus]_[species or subspecies, abbreviated], see table S6 in Bolstad et al. 2015 for the scientific name;
ID: individual fly ID in the form of the picture name;
Date: the date the image of the fly was taken (day_month_year);
Sex: the sex of each fly, where F codes for female and M codes for male;
WingSize: the size of each fly's wing in log(mm) (square root of area on the natural logarithmic scale);
L2Length: length of vein L2 in log(mm), where log is the natural logarithm

数据文件内容（摘自README.txt，重复列出）：
物种：物种标识符，含义清晰直白，通常采用「属名首字母」_[物种或亚种缩写形式]的格式，如需获取完整学名，请参阅Bolstad等人2015年发表文献中的补充表S6；
个体编号：单只果蝇的个体标识符，格式与对应图片的文件名完全一致；
拍摄日期：果蝇图像的拍摄日期，格式为「日_月_年」；
性别：果蝇的性别，其中F代表雌性，M代表雄性；
翅尺寸：果蝇翅膀的尺寸，单位为log(mm)（即基于自然对数尺度的面积平方根）；
L2翅脉长度：果蝇翅膀L2翅脉的长度，单位为log(mm)，此处log指代自然对数；