钩土蜂属长肩片组二新种（膜翅目：钩土蜂科）

TWO NEW SPECIES OF THE SPECIES GROUP WITH LONGER TEGULA OF THE GENUS TIPHIA (HYMENOPTERA: TIPHIIDAE)

本文记述钩土蜂属长肩片组２新种──杨氏钩土蜂Ｔｉｐｈｉａ（Ｔｉｐｈｉａ）ｙａｎｇｉ，ｓｐ．ｎｏｖ．与多变钩土蜂Ｔｉｐｈｉａ（Ｔｉｐｈｉａ）ｍｕｔａｔａ，ｓｐ．ｎｏｖ．。模式标本分别保存于中国科学院昆虫标本馆和北京农业大学昆虫标本馆。

This paper describes two new species belonging to the species group with longer tegula of the genus Tiphia from China, of which one is named after the surname of my professional conductor, Prof. Yang Chi-kun to congratulate his 5oth anniversary of Entomological teaching. The type specimens are kept in the insect Collection of Beijing Agricultural University and the insect Collection of Chinese Academy of Science separately.