. Bulletin. Natural history; Natural history. and central Texas (Fig. 255). In Illi- nois this species is found throughout the state (Fig. 255). Tabanus turbidus Wiedemann Tabanus turbidus Wiedemann (1828:124). Type-locality: Kentucky. Large size (22 mm); brown: frons very narrow, widened above; antennae, palpi, legs reddish brown; wings with brown spot on bifurcation and cross- veins, most veins margined with brown; costal cell yellow; first posterior cell wide open; abdomen brown with a row of sometimes indistinct pale trian- gles (Fig. 185). Male readily associated with female; annulate por
. Bulletin. Natural history; Natural history. and central Texas (Fig. 255). In Illi- nois this species is found throughout the state (Fig. 255). Tabanus turbidus Wiedemann Tabanus turbidus Wiedemann (1828:124). Type-locality: Kentucky. Large size (22 mm); brown: frons very narrow, widened above; antennae, palpi, legs reddish brown; wings with brown spot on bifurcation and cross- veins, most veins margined with brown; costal cell yellow; first posterior cell wide open; abdomen brown with a row of sometimes indistinct pale trian- gles (Fig. 185). Male readily associated with female; annulate portion of third antennal segment sometimes slightly darkened; legs a little darker than in female, abdominal spots larger and more conspicuous; upper eye facets enlarged but not sharplv set off from smaller facets. The larva is unknown. The adults are largely crepuscular and nocturnal. In Illinois adults appear in mid-July and have been collected until late August. T. turbidus is a southeastern species, extending from central Florida to South Carolina and west to southern Illinois and western Arkansas (Fig. 256). This species has been collected in Illinois only in the south. Illinois Records.—Alexander County, 4 miles ESE McCliire; Johnson County, mile E Grantsburg; Union County, LaRue-Pine Hills Ecological .\rea (4 miles N Wolf Lake), Union County Conservation Area (2 miles SE Ware).. Fig. 255.—Distribution of Tabanus trimaculatus in Illinois and North America. Fig. 256.—Distribution of Tabanus turbidus in North America. I. 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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