INSECUTOR INSCITI^ MENSTRUUS 181 



Posth. 11, 273. Change of name for Ptilopsis R. D. (1863) 

 preocc. by Kanp. (1851). 



Differs from Stroiigygaster mainly in the pilose eyes, male 

 frontalia pinched out behind and parafrontalia reduced to a 

 line, and apical cell open. 



Vanderwulpella, new genus. 



Genotype, Xanthomelana anceps Wulp, 1003, Biol. C.-A., 

 Dipt. II, Suppl., 455, pi. 13, fig. 15. 



Eyes bare, subcontiguous in the male ; male front triangular. 

 Third antennal joint but little longer than second. Apical cell 

 long-petiolate. Fourth vein evenly arcuate at bend. Hind 

 crossvein nearer to small crossvein than to bend of fourth 

 vein. Abdomen ovate, short, convex, five segments visible 

 from above. Abdominal macrochsetse only marginal, moder- 

 ately strong and long. Male claws elongate. 



Named in honor of Mr. F. M. van der Wulp, who has de- 

 scribed a large number of exceptionally interesting muscoid 

 forms. 



Girschneria mirabilis, new genus and species. 



Name for "Tachinine gen. et sp.", Girschner, 1885, Ent. 

 Nachr., xi, 3-6, figs. 4, 4a-4e ; and xii, 20-21. 



Over thirty years ago Girschner, in whose honor the genus 

 is named, described and figured the generic and specific char- 

 acters of this remarkable Sisyropine form. Only one specimen, 

 the original, is so far known and is evidently the male. It pos- 

 sesses five pairs of long feathered bristles on the head, three 

 cruciate pairs being inserted on the edges of the forward half 

 of the frontalia, and two divaricate pairs on the facialia at 

 about aristal level. The upper pair of the two on facialia is 

 white while all the others are black. Whether the female also 

 possesses these feathered bristles is unknown but unlikely. 

 They are distinct from the frontal bristles, which are always 

 inserted on the parafrontalia. They were believed by Mik to 

 be of extraneous origin, but are unquestionably structures of 

 the fly. 



