THE CANADIAN ENTOMOLOGIST. 401 



EUROPEAN HETEROPTERA SUPPOSED TO OCCUR IN 



AMERICA. 



BY J. R. DE LA TORRE BUENO, NEW YORK. 



The eminent Hemipterist, Dr. G. Horvath, gave in 1908 a list of the 

 Hemiptera common to the Old and the New Worlds, 1 which I reviewed in 

 the same year, 2 calling attention to one or two points at variance with later 

 unpublished observations. Subsequently, Dr. Horvath having studied the 

 material he had obtained in this country in 1907, made known his results 

 late in 1908, under the title, " Remarques sur quelques He'mipteres de 

 l'Amerique du Nord." 3 His critical comparison of those of our native 

 forms hitherto considered the same as the European, clearly revealed the 

 burden of misidentification under which American Hemipterists of this 

 generation had laboured, and from which some appear not to have escaped 

 as yet. A review of this paper appeared in the Canadian Entomologist, 4 

 in which were noted the full synonymies for the new species created 

 out of what we had complacently regarded as common to both continents. 

 By an oversight, the new species, Chlorochroa persimilis, Horv., described 

 from what we had known as Pentatoma jumper ina, L., was omitted from 

 the list of new species on p. 294 of this review. 



And yet, although Horvath's papers appeared in 1908, and were 

 received in this country early ^in 1909, in the current number of the 

 Journal of the New York Entomological Society, 5 the minutes of the meet- 

 ing of March 2 give a list of nine species of Palgearctic Heteroptera 

 exhibited, which were declared to occur also in the United States. 

 Unfortunately four of these are but a repetition of the old errors, the 

 species being Pentatoma juniptrina, Cymus claviculus, Ischnorhynchus 

 resedce, and Emblethis griseus. 



Possession of a specimen of the true P. juniperina, L., for the last 

 four years, and comparison with what purported to be that species from 

 America, gave rise to great misgivings as to ours being the same species 

 as the European form, and long before Horvath's publication Van Duzee 

 had recognized the two as distinct. As to Emblethis griseus, a mere 

 glance at this in comparison with our E. vicarius, Horv., would settle any 

 doubts as to their non-identity. Similarly, our Ischnorhynchtis geminatus 



1. Ann. Mus. Hist. Nat. Hung., VI, pp. 1-14. 



2. Can. Ent., XL, pp. 300-302. 



3. Ann. Mus. Hist. Nat. Hung., VI, pp. 555-69. 



4. Aug., 1909, Vol. XLI, pp. 294-6. 



5. Vol. XVII, No. 3, p. 138. 

 November, 1909 



