48 ENTOMOLOGICAL NEWS. [Feb., '07 



always interesting and instructive, and I therefore give the 

 localities of the specimens and dates of capture so far as they 

 exist on the pin labels. 



Calanus. Nashville, Tenn., vi, 8 ; Beulah, Manitoba, vii, 

 16; vii, 28; Ohio; Runnels Co., Tex., v, 10; Wilmington, 

 N. C, vi, 5 ; Philadelphia, Pa., vi, 10 ; viii, 24 ; Lake George, 

 Fla. ; Colorado ; Newark, N. J., vii, 4 ; Elmwood, R. I., viii, 

 8 ; Jacksonville, Fla., v, 5 ; Atlanta, Ga. ; Toronto, Ont., vi, 

 20; vii, 9 ; Beulah, New Mex., vii, 16. 



Edivardsi. Minneapolis, Minn., vii, 8; Iowa; Toronto, 

 Ont., vii, 9 ; vii, 23 ; Platte Canyon, Colo., vi, 23 ; Canaden- 

 sis, Pike Co., Pa., viii, 12; London, Ont. ; Chicago, 111., vi, 

 4; Round Mountain, Blanco Co., Tex., v, 17. The distribu- 

 tion does not show anything conclusive. Among the lot sent 

 by Dr. Fletcher are dark specimens taken at Toronto by Arthur 

 Gibson on same dates as light ones. Moreover, most of the 

 Canadian specimens are somewhat old and flown, and would 

 therefore be lighter in color. The specimens exhibit the usual 

 variation in size found in all butterflies. My conclusions are 

 that under the naines calanus and edwardsi we have but one 

 species. My division into dark specimens {calanus) and light 

 specimens {edwardsi) was for purposes of study. For sake of 

 brevity I have not gone into the general synonymy of the 



names treated. 



■ <«> ' 



Notes on American Hemiptera. 

 By E. Bergroth, M.D., Duluth, Minn. 



III. — The Acanthosomatinse of North America* 

 In his "Check-list" (1886) Uhler enumerates five North 

 American species of this subfamily. By placing three of them 

 as synonyms Van Duzee has reduced this number to two in his 

 " Annotated List of the Pentatomidae Recorded from America 

 North of Mexico" (1904), but he describes one new species 

 and one new variety. All the North American species are 

 placed in the genus Acanthosoma by these authors. Since my 

 moving over to this side of the Atlantic, I have had occasion 

 to examine most of the American forms of this group, and find 



* Nos. I. and II. have been published in the Canadian Entomologist. 



