(Uludağ Üniversitesi, 2004) Yılmaz, Zeyhan; Uğurtaş, İsmail Hakkı; Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Biyoloji Bölümü.
In this study, 10 species of bumble bees were found in Bursa province. Six of these species belong to the genus Bombus and the others to the genus Psithyrus. The colour pattern and body measurements of these species were studied.