Sweziella Van Duzee

Evenhuis, Neal L., 2005, A review of the genera comprising species of the genus Eurynogaster sensu Hardy & Kohn, 1964 in Hawai‘i (Diptera: Dolichopodidae), Zootaxa 1017, pp. 39-60 : 55-56

Genus Sweziella Van Duzee

( Figs. 10, 19, 27)

Sweziella Van Duzee, 1933: 346 . Type species: Sweziella albifacies Van Duzee, 1933 [= Eurynogaster virida Van Duzee, 1933 ], by monotypy.

Diagnosis: Species in this genus are relatively larger in size than typical Eurynogaster and can be distinguished from the latter genus and Uropachys by the conspicuous ventrally oriented lateral process on the 3rd abdominal tergite ( Fig. 10) and the hypopygium having rounded cerci with unmodified hairs, long, thin bilobate surstylus, both lobes possessing apical spines, and the straight and sharply pointed aedeagus ( Fig. 27).

Hypopygium ( Fig. 27): Extending forward up to posterior margin of 4th abdominal segment. In lateral view: cercus rounded, with fine hairs; surstylus bilobate, both lobes of equal length, long, thin, with strong apical setation or bristling; basiventral and apicoventral epandrial lobes absent; hypandrium sinuous, usually elongate; aedeagus long, thin, straight to sharply pointed apex.

Discussion: Species in Sweziella are what many workers have previously characterized as the “typical” Eurynogaster owing to their relatively large size and commonness in collections. True Eurynogaster are typically much smaller in size whereas Sweziella include some of the larger members of the Eurynogaster group of genera (body length 3–6 mm). Currently, 7 species are placed in the genus.

Included Species: Sweziella aeruginosa (Hardy & Kohn) *, comb. n., Sweziella conspicua (Hardy & Kohn) *, comb. n., Sweziella emarginata (Tenorio) *, comb. n., Sweziella gracilipennata (Hardy & Kohn) *, comb. n., Sweziella pictilipennata (Tenorio) *, comb. n., Sweziella tergoprolixa (Hardy & Kohn) *, comb. n., Sweziella virida (Van Duzee) *.