. Bulletin. Natural history; Natural history. April 1983 Pechliman, Webb, Sc Dipiera oe Illinois—Tabanidae 79 7? abdominalis ranges from Texas to Florida and north to Virginia and Kentucky. In Illinois it has been collect- ed only in the southern third of the state, and this seems to mark the north- ern extent of its range (Fig. 219).. Rg. 219.—Distribution of Tabanus abdominalis in Illinois and North America. Tabanus americanus Forster Tabanus americanus Forster (1771:100). Type-locality: Virginia and New York. Tabanus piumbeus Drury (1773:2). Type- locality: Virginia and New York. Ta
. Bulletin. Natural history; Natural history. April 1983 Pechliman, Webb, Sc Dipiera oe Illinois—Tabanidae 79 7? abdominalis ranges from Texas to Florida and north to Virginia and Kentucky. In Illinois it has been collect- ed only in the southern third of the state, and this seems to mark the north- ern extent of its range (Fig. 219).. Rg. 219.—Distribution of Tabanus abdominalis in Illinois and North America. Tabanus americanus Forster Tabanus americanus Forster (1771:100). Type-locality: Virginia and New York. Tabanus piumbeus Drury (1773:2). Type- locality: Virginia and New York. Tabanus ruficornis Fabricius (1775:789). Type-locality: America. Tabanus limbatus Palisot de Beauvois (1806:54). Type-locality: United States. Large (24 mm); reddish brown; subcallus not denuded; palpi pale to reddish brown; eye bare; wing hyaline with dark brown costal cell; abdomen with narrow pale bands on hind mar- gins of segments. Male eye facets dis- tinctly differentiated; eyes bare. This species is the largest horse fly in North America, sometimes reaching a length of 30 mm. Larvae (Fig. 190) have been found in decaying logs and along margins of ponds as well as in the moist areas of the forest floor (Tidwell 1973). In Illinois adults appear in late June and have been collected until late July. T. arnericaniLs is a southeastern species, extending from the southern tip of Florida to New Hampshire and west to eastern Texas (Fig. 220) with a disjunct, and possibly not permanent, distribution in southern Ontario and Michigan. In Illinois this species is only found in the southern third of the state (Fig. 220).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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