342 THE CANADIAN ENTOMOLOGIST. 



A REVIEW OF OUR GEOMETRID CLASSIFICATION— No. 2. 



BY RICHARD F. PE.-\RSALL, BROOKLYN, N. Y. 



In my former paper a preliminary discussion of certain genera in 

 Geometridfe made plain the need for a general rearrangement of this 

 group. But this cannot be done as regards all of the species without 

 much close study and comparison of types. Therefore, I venture at this 

 time only to outline what seems to me the most rational method of 

 arrangement into sub-families and genera — to include new material and to 

 correct many errors in definition, and in some cases identification of generic 

 types, as given by Dr. Hulst (Trans. Am. Ent. Soc, xxiii., 245, 1896). 

 I claim nothing original in my work, for I consider the general sclieme, 

 as devised by Dr. Hulst, the best that can be produced, nor do I need to 

 add to his introduction of it, as given in the article referred to, except to 

 say that I am strongly in accord with him when he states that this family 

 are most nearly related to the Noctuida\ In my arrangement of genera 

 I place, therefore, Paleacrita at the head of the series. 



Following largely the characterization as given by Dr. Hulst, they 

 separate thus : 



Geometrina. 

 Synopsis of families and sub-families. 



Hind wings, vein 5 present, strong Geometridw. 



Hind wings, vein 5 absent, or a fold only Ennomidae. 



Geometrida\ 



1. Antennas $ unipectinate Monotaxina?. 



Antetinae $ not unipectinate 2. 



2. All wings with vein 5 nearer 6 than 4 Geometrinae. 



Fore or hind wings with vein 5 at middle of cell or nearer 4 than 6. .3. 



3. Hind wings, vein 8 coalescing with cell to middle, or if separate, joined 



with it by a cross-bar, at or beyond middle Hydriomina^. 



Hind wings, vein 8 separate from cell, or joined at or near base only, 4. 



4. Hind wings, 8 shortly joined with cell at or near base 5. 



Hind wings, 8 separate from cell Brephin;^. 



5. Hind wings, 8 joined with cell near base, shortly llien rapidly 



diverging Sterrhina?. 



Hind wings, 8 joined with cell at base, then subparallel 

 with it Monocteniinjv, 



