Dworakowska (1995) established the genus Bhatasca based on the type species Bhatasca expansa Dworakowska, 1995 from Tsyr-feng in Taiwan, and Qin et al. (2011) described Bhatasca rectangulata based on the generic diagnosis provided by Dworakowska (1995). Until now, only two species were included in the genus, widely distributed in mainland China (Hunan, Henan, Gansu, Sichuan, Fujian, Zhejiang, Jiangxi) and Taiwan. Based on investigation of the descriptions and illustrations by Hayashi and Okada (1994) and Dworakowska (1995) and Bhatasca material deposited in the Entomological Museum, Northwest A&F University (NWAFU), we recognize the genus Bhatasca Dworakowska is a junior synonym of Alebrasca Hayashi & Okada.

After checking the type specimens of Bhatasca rectangulata, we found the characters of wing, basal abdominal apodemes and male genitalia described by Qin et al. (2011) in mainland China are the same as those of the species described by Hayashi and Okada (1994). Furthermore, the distribution of Bhatasca rectangulata has nearly same latitude as the type locality of Alebrasca actinidiae Hayashi & Okada in Japan (central Honshu). Therefore, synonymy of the two species is confirmed here.

Dworakowska (1995) described this species in Bhatasca from Taiwan. We here transfer it to Alebrasca mainlybased on the characters of the head, the venation of fore- and hindwing, the basal abdominal apodemes and especially the configuration of the male genitalia.