VI. REVIvSION OF THE ORIENTAL S T R A- 

 T I M Y I D ^, WITH X Y LO M Y I A AND 

 I T S A L L I E S. 



ERRATUM. 



Page 148, line 21. For ''indica'" read •■ himalayaniis.''' 



genera of the Notacantha, and he objected (to use his own words) 

 to " the juxtaposition of Subula and Xylophagus in the same ulti- 

 mate subdivision." 



By structural characters, and by their metamorphoses, Xyi- 

 omyia {Subula is preoccupied by Schummell in MoUusca, 1817) is 

 much more related to the Stratiomyidce than to Xylophagus, which 

 latter genus is distinctly related to the Leptidce and, in a less degree, 

 to the TabanidcB also. 



In Aldrich's recent Catalogue of North American Diptera 

 Xylophagidce ^ as a family, is sunk bodily in Leptidce, and Ccsnomyia 

 with its allies added also. My own hesitation has been partly due 

 to the costal vein in these genera being continued all round the edge 

 of the wing, as in most other Brachycera, instead of terminating 

 suddenly at the tip of the wing or just beyond it, which latter 

 characteristic is peculiar to the Stratiomyidce : also partly, to the 

 variation from the typical venation, a character in which the 

 Stratiomyidce are strikingly consistent. Without expressing any 

 definite opinion, having only casually studied the question of 



