226 THE CANADIAN ENTOMOLOGIST. 



Dr. Horn, Can. Ent., 1884, p. 127, states why the name Chrysomela 

 scalaris, given to the beetle, Ann. Lyceum N. H. 1824, vol. i, p. 173, pi. 

 7, f. 18, was changed byStal, Monogr. p. 261, in Chr. multiguttis, because 

 Ohvier had described in 1807 a Chr. scalaris. But as this species belongs 

 to Doryphora, and LeConte's species to Chalcograpka, this latter name 

 can stand, and is in fact accepted by Jacoby, Biol. Cent. Am. vi., pi. i., 

 p. 197, pi. xl., f. 6. Mr. Jacoby says: "A specimen from the collection 

 of Sturm is labeled by him C. riijipes." The synonym of C. lateralis St. 

 given in Gemminger's Catalogue must therefore refer to another species. 

 But there is in Sturm's Catalogues from 1826 and 1843 nowhere a C. 

 rufipes mentioned, which must be a collection name. The name C. 

 lateralis is put by Sturm himself, Catal. 1843, P- 288, as a synonym to 

 C. scalaris Dej., which is our species. The C. philadelphica Kirby, Tr. 

 Am. Soc, is considered as a synonym of our species by Rogers, Suffrian, 

 Jacoby. But Rev. Bethune, in his edition of Kitby's Fa., 1883, p. 96, 

 unites it with C. philadelphica of Linnaeus. 



REMARKS ON CHRYSOMELA SCALARIS, Lec, CHRYSOMELA 

 LABYRINTHICA, Lec, AND PHYSONOTA UNIPUNCTA, Say, 



BY F. B. CAULFIELD, MONTREAL. 



Chrysomela labyrinthica, Lec. This insect is, I believe, by some 

 entomologists thought to be a variety of C. scalaris, Lec. I incline 

 myself to the belief that it is a distinct species, but my knowledge of it is 

 too limited for me to form a decided opinion. Both forms occur here ; 

 scalaris is common wherever basswood or elm are tbund ; labyrinthica is 

 scarce, and as far as my experience goes, is confined to one locality, viz., 

 that portion of the Mountain Park lying between the head of Redpath 

 Street and the road through the Park. I have only found labyrinthica 

 during the early part of summer ; scalaris occurs both in spring and fall. 

 Mr. Moffat, who records labyrinthica from Hamilton (Can. Ent., vol. 

 xiv., page 57), took a specimen on May 23rd, and found its season to last 

 about four weeks, during which he took over a dozen. It appears to be 

 very rare, and is in very few lists. Mr. Pettit does not give it in his 

 Grimsby List. Mr. D'Urban records scalaris common at Montreal, but 

 does not mention labyrinthica. The same author, in his list from the. 



