ORTALID^ — INTRODUCTION. ' IT 



assigned to it by R. Desvoidy, I hold to be correct ; with Pla- 

 tystoma it has nothing to do. 



The genus Palpomya, a hybrid name, being formed out of a 

 Latin and a Greek word, and not rendered more valuable by its 

 improvement in Palpomyia, is identical with Platy stoma ; the 

 typical Palpomyia Lalandi is nothing else but the well-known 

 Platystoma asphaltina Wied. The generic characters given by 

 R. Desvoidy are entirely erroneous. 



Under the name of Hesyquillia Rob. Desvoidy describes Pla- 

 tystoma seminationis Fab., and under that of Hesyquillia lu- 

 gubris the Platystoma umbrarum Fab. ; thus, the genus Hesy- 

 quillia likewise coincides with Platystoma. 



The genus Heramya, which ought at least to be called He- 

 ramyia, is based upon Sciomyza bucephala, which R. Desvoidy 

 did not recognize, as well as upon another species which is very 

 like it, if not identical. Macquart united this species with 

 Myoris (a name which it is difficult to explain), a genus not dis- 

 tinguished by a single character of any value, and with Blain- 

 villia (a preoccupied name), and thus formed his genus Otites (a 

 name which Latreille had already used in a broader sense) ; but 

 he placed in it moreover some true Sciomyzidse. 



The genus Oscinis, as understood by R. Desvoidy, is identical 

 with Dorycera; it has nothing in common with the genus of the 

 same name to which Fallen reduced the much more comprehen- 

 sive genus Oscinis of Latreille. 



Meckelia (an already preoccupied name) and Melierea (pro- 

 bably also a dedication name), contain species belonging to 

 Macquart's Ortalideous genus Ceroxys. 



The genus Myennis (a badly formed name), is established for 

 Scatophaga fasciata Fab., which Macquart, in the Suites a 

 Buffon, describes as Ortalis fasciata, after Rob. Desvoidy, and, 

 for a second time, as Tephritis fasciata, after Meigen. 



Strauzia (as the genus is dedicated to Strauss-Durkheim, the 

 name should be spelt Straussia) does not belong to the Orta- 

 lidse at all, but to the Trypetidse; the two species described by 

 Rob. Desvoidy are nothing else but the male and female of 

 Trypeta longipennis Wied., which Rob. Desvoidy did not re- 

 cognize. 



Vidalia seems likewise to belong to the Trypetidse; not 

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