Revision of the tropical fruit flies (Diptera : Tephritidae : Dacinae) of South-east Asia. II. Dacus Fabricius

A total of 44 species are placed in the genus Dacus inSouth-east Asia and divided amongst four subgenera, viz. Callantra Walker, Dacus Fabricius,Dida cus Collart and Leptoxyda Macquart. In all, 27 species are revised and the following 17 new speciesdescribed: Dacus ( Callantra ) ambonensis , D .( C .) atrimarginatus , D . ( C .) calirayae , D .( C .) feijen i, D . ( C .) insulosus , D .( C .) lagunae , D . ( C .) leongi , D .( C .) maculipterus , D . ( C .) murphyi , D .( C .) nanggalae , D . ( C .) ooii , D .( C .) ramanii , D .( C .) siamensis , D . ( C .) tenebrosus , D .( C .) vijaysegarani , D . ( C .) wallacei , Dacus ( Dacus ) santongae . A key tospecies within the genus Dacus is presented based oncharacters that bypass subgeneric groupings, because of the presentuncertainty of subgeneric limits. Information is given on location of typespecimens, host plants, attractant records and geographic distributions.Lectotypes are designated for D. conopsoides de Meijere, D. esakii (Shiraki), D. icariiformis Enderlein and D. persicus Hendel. Thirteen new synonymies within Dacus are established: Callantra ihai Shiraki [of Dacus esakii (Shiraki)]; Callantra smieroides Walker, Mellesis destillatoria Bezzi, Mellesis eumenoides Bezzi, Mellesis bioculata Bezzi, Callantra unifasciatus Hardy, Callantra variegata Wang (all of Dacus longicornis Wiedemann); Mellesis apicalis Shiraki [of Dacus nummularius (Bezzi)]; Callantra munroi Zaka-ur-Rab, Callantra nepalensis Hardy, Callantra quadristriata Munro [all of Dacus polistiformis (Senior-White)]; Callantra ziae Wang [of Dacus satanas (Hering)]; Dacus cocciniae Premlata & Awtar Singh (of Dacus ciliatus Loew). Dacus persicus Hendel is removed from synonymy with D. longistylus Wiedemann. Sinodacus fuscans Wang is placed as a new synonym of Bactrocera brachycera (Bezzi).