Relictanum, Miranda, 2014

Mengual, Ximo, Miranda, Gil Felipe G. & Thompson, F. Christian, 2018, Unraveling Ocyptamus and the Baccha legacy (Diptera: Syrphidae): redefinition of groups and new species descriptions, Zootaxa 4461 (1), pp. 1-44 : 15

Genus Relictanum Miranda in Miranda et al., 2014

Fig. 107 .

Relictanum Miranda in Miranda et al., 2014: 85, as a genus. Type species: Baccha crassa Walker, 1852 (original designation). Baccha tristis species group, in part. Hull (1949a).

Ocyptamus tristis species group, in part. Mengual et al. (2012).

Diagnosis. Face with median facial tubercle. Dorsal occiput with one row of pile. Petiolate abdomen.

Biology. Larvae of Relictanum braziliensis ( Curran, 1939) are recorded preying on Coccidae (Hemiptera) ( Miranda et al. 2014).

Comments. Phylogenetically and morphologically close to Pelecinobaccha , but much smaller flies with narrower 2nd abdominal segment and female genitalia not modified as in Pelecinobaccha . Morphologically similar to Atylobaccha , but readily separated by the presence of a facial tubercle.

Species list (9): R. adspersitum Miranda in Miranda et al., 2014, R. braziliensis ( Curran, 1939) , R. crassum ( Walker, 1852) , R. fiametta ( Hull, 1943b) , R. johnsoni ( Curran, 1934) , R. magisadspersum Miranda in Miranda et al., 2014, R. nero ( Curran, 1939) , R. schwarzi ( Curran, 1939) , R. shropshirei ( Curran, 1930a) .

Figures

FIGURES 106–111. 106: Pelecinobaccha alicia [female, CNC], occiput, detail, photo previously published in Miranda et al. (2014): ar: anterior row of occipital pile; pr: posterior row of occipital pile. 107: Relictanum johnsoni (Curran) [female, CNC], occiput, detail, photo previously published in Miranda et al. (2014): sr: single row of occipital pile. 108: Ocyptamus myiophagus Thompson sp. nov. [male holotype, USNMENT 01288295], habitus, dorsal view. Scale = 1 mm. 109: Ocyptamus myiophagus Thompson sp. nov. [male holotype, USNMENT 01288295], head, frontal view. Scale = 1 mm. 110: Ocyptamus myiophagus Thompson sp. nov. [male holotype, USNMENT 01288295], habitus, lateral view. Scale = 1 mm. 111: Syrphus sargoides [male, GFGM-MNRJ0002], hypandrium, lateral view.