THE CANADIAN ENTOMOLOGIST 287 



Pterocomma smithiae (Mon.). 



Synonymy: ? Aphis salicti Harris. 



? Aphis salicicola Uhler. 



Chaitophorus smithice Monell. 

 ? Lachnus salicicola (Uhler) Thos. 

 Melanoxanthus salicti Weed. 

 Melanoxantherium smithies (Mon.) Gillette. 

 Pterocomma smithice (Mon.) Wilson. 



Pterocomma bicolor (Oest.) 



Synonymy: Aielanoxanthus bicolor Oestlund. 



Melanoxantherium bicolor (Oestlund) Patch. 



Pterocomma antennata (Patch) 

 Synonymy: Melanoxantherium antennatum Patch. 



Pterocomma beulahensis (Ckll.) 

 Synonymy: Cladobius beulahensis Ckll. 



A few misprints are noted in Wilson's paper. On 

 page 347, in listing the described species, beulahensis and 

 salicicola are misspelled. Cockerell, the author of beulahensis, is 

 written as if it were part of the specific name. The citation of 

 "lanthanice" is different on page 347 from the citation of the species 

 on page 357. If lantance Koch is not a Pterocomma, as Wilson 

 believes, and if the name is retained as he retains it, it must become 

 P. lantance (Pass) based on the description of the oviparous female 

 in Aphididse Italicse, p. 55. Passerini spelled the name lantance, 

 but a new one would be required, 



The names listed under salicis (Linn.) should be altered as 

 follows: Aphis salicis should be in italics. In the lines following, 

 Linn, should be in parenthesis, while the names of the other authors 

 should not be. In the synonymy of flocculosa Weed, the first 

 reference should read Melanoxanthus, and Weed should not be in 

 parenthesis. In the synonymy of bicolor Oest , where the genus is 

 cited as Melanoxanthus, Oestlund should not be in parenthesis. 



