54 THE CANADIAN ENTOMOLOGIST. 



the series, two tropical species intervening with others. No locaHty is 

 given for Lycaon and Herse, as it was not known by Kirby what part of 

 the world they came from. Since the time of Fabricius, 1793, these 

 drawings had never been fixed on any living species. 



In 1872, 39 years after Boisduval and LeConte had figured Celtis and 

 Clytoji, during all which period their names had stood unchallenged, Mr. 

 Scudder, in his Systematic Revision, first connects Jones's figures with our 

 N. Am. species, making Clyton to be identical with Herse and Celtis with 

 Lycaon^ differing completely, as is seen from both Butler and Kirby. They 

 regarded these drawings as meant to illustrate two sexes of one species, but 

 that one neither Clyto?i nor Cdtis. Mr. Scudder asserts them to illustrate 

 two distinct species, with no explanation allotting one to Clyton, the other 

 to Celtis. Now Clyton and Celtis belong to two well marked sub- 

 groups, and it shows the utterly worthless character of the Jones drawings 

 for identification of species, that such an authority as Mr. Butler should 

 regard them as representing the two sexes of one species, and that Mr. 

 Scudder should, on the contrary, think they represented two species of 

 distinct sub-groups. 



In 1874, Mr. Riley, 6th Mo. Report, gave admirable wood-cuts — as 

 his manner is^of both our species, but unfortunately, followed Mr. Scud- 

 der in perpetuating the errors I have spoken of, and that evidently out of 

 deference to Mr. Scudder's supposed means of information. He says that 

 " for forty years the species have been known as Celtis and Clyto?i, and he 

 regrets that some time should not by agreement be fixed, say a quarter of 

 a century, after which an insect which has been universally designated by 

 a particular name, should not be called on to change its name evermore, 

 no matter what prior name might turn up. But as no such rule exists, he 

 thinks the quickest way to get rid of the confusion now attaching to the 

 specific nomenclature is to follow Mr. Scudder, who has given the matter 

 so much attention." If I am not much mistaken, Mr. Riley would not 

 give that advice to-day. I do not suppose Mr. Scudder ever saw Celtis 

 and Clyton alive — as they are not New Englanders — and all that he knew 

 of Jones' figures was learned by a cursory inspection of them at Oxford 

 at some time during his travels. That unlucky inspection has been the 

 cause of a great deal of trouble. 



I had occasion to figure Celtis and Clyton in Vol. 2, But. N. A., Parts 

 3 and 5, and 1 obtained, by the kindness of Prof VVestwood, colored 

 copies made by himself of both surfaces of Herse. Mr. Riley, after his 



