The Distribution of the Pentatomoidea in the Northeastern Quarter of the United States (Hemiptera)

The distributions of the pentatomoids occurring in the northeastern quarter of the United States as listed by Van Duzee in 1917 are updated.Van Duzee's catalogue of the Hemiptera of America north of Mexico (179) was published in 1917.and has served for several years as a basic source of information (i.e.. synonyms, distributions, references) for the order.Blatchley ( 12) relied heavily on it for his classic study of the Hemiptera of eastern North America as did Torre-Bueno ( 174) in his synopsis of North American Hemiptera.However, as is to be expected, the distributions of species as listed by Van Duzee have become increasingly outdated, both because of subsequent faunal lists which have provided a better understanding of the actual ranges of these taxa, and because of several taxonomic revisions and/or descriptions of new species which have invalidated sections of the catalogue.The Pentatomoidea is a typical group for which the taxonomic and bionomic literature have increased tremendously since 1917, particularly in the northeastern quarter of the continental United States.Presented here are updated distributions for these northeastern pentatomoids and references.These consist of the distributions given by Van Duzee, supplemented with more recent records; occasionally I have used records predating 1917, which Van Duzee apparently overlooked.I have omitted the Van Duzee distributions for taxa that have undergone extensive revision subsequent to 1917.The geographical area considered lies within an area bordered by a line running from Minnesota south to Missouri, and east to Virginia.It is hoped that the updated distributions will serve as a stimulus for supplementary lists, particularly where oh\ ious gaps still remain (e.g., Minnesota, Wisconsin).The sequence of genera follows.where possible, that in Van Duzee's catalogue.His 1917 distributions are set off with italics.Those taxa that Van Duzee did not list as occurring in the geographical area considered in this paper, or were described subsequent to his catalogue, are indicated by a dashed line.Those which he listed from this area but have been greatly affected by revisionar).. studies are indicated by a question mark, the one exception being that of Microporus obliquus for which the question mark is his.