Tabanus oklahomensis
date: label: Collection Date
content: 31 Mar 1933
name: label: Collector
content: H. Schnorrenberg
notes: label: Notes
content: Female. Length 13-15 mm. Eyes transverse and short dorsoventrally, the angle formed by the lower margin of the eyes wider than usual; clothed with short, dense, white pile; in life dark purple with four green-blue diagonal stripes,not touching the eye margin laterally, and the three lower ones curved upward at the outer end. Front very broad, sometimes less than twice as high as its width, and never more than 2 1/2 times its width, the sides parallel or nearly so; c1othed with yellowish brown pollen, paler between the median spot and the frontal callus and with downward pointing hair, black except just above the frontal callus, where it is creamy white. Vertex somewhat concave with a shiny black triangle, in the middle of which lies a sharply defined, raised, dark reddish, ocelligerous tubercle. A slender black line runs from the ocelligernus tubercle to the frontal callus; on each side of this line, on the middle of the front, lies a large black spot, either separated from the line, or broadly joined to it. Frontal callus black, wrinkled, transverse, somewhat protuberant, tapering somewhat to each side but touching the eyes; the line between the frontal callus and the subcallus distinctly curved downward medianly. Subcallus swollen and shining black with a median depressed line. Semicircles above antennal bases with pale yellow pollen. First antennal joint stout and some what enlarged apically, with gray pollen, pale yellowish and black hair, and a distinct tuft of reddish hair at the apex above; second joint small with black hair and a distinct dorsal point; third joint rather stout with a strong dorsal angle and quite concave anterior to it; basal third to half of the basal portion dark reddish brown to nearly black; the rest black; anullate portion stout, about equal in length to the width of the basal portion at the dorsal angle. Face, cheeks, and back of head pale yellow ish gray pollinose with abundant, long, nearly white hair; posterior orbital fringe of hair, to either side of vertex for a shrt distance, distinctly yellowish orange. Palpi short, stout, swollen at baseand coming to a sharp poin t; clothed with pale yellowish pollen and long, nearly white hair. Proboscis very short, the labellae black. Dorsum of thorax black with abundant, long, silky pale yellowish or brownish hair. Antealar callus with s horter black hair. Pleurae, sternum, and coxae gray pollinose, densely clothed with long, nea rly wh ite hair. Wings hyaline wit h black veins; costal cell often somewhat infuscated; no stump at base of vein R4; cell R5 not at all coarctate. Legs with femora black, the under surface, particularly of the fore pair, with abundant, long yellowish hair. Tibiae dark reddish, the fore pair with the apex black; all tibiae clothed with a mixture of pale and black hairs; hind tibial fringe not prominent. Tarsi black, the ventral surface with short, bright orange hair. Abdomen broad, black, clothed with pale Yellowish and black hair, the Pale hair forming rather indefinite posterior margins to the tergites; these bands expanding at the lateral margin of each tergitc and sometimes forming faint median triangles. Venter gray pollinose, the posterior margin of the sternites somewhat paler.
label: Notes
content: [Label 1] 3-31-1933 Atona,Okla H.Schnorrenberg; [Label 2] TypeNo. 49377 U.S.N.M.
label: Record Last Modified
content: 18 Mar 2020
label: Specimen Count
content: 1
place: label: Place
content: Atoka, Oklahoma, United States
setName: label: See more items in
content: Entomology Types
publisher: label: Published Name
content: Tabanus oklahomensis Stone, 1933
label: Published Name
content: Hybomitra nigricans (Wied.)
dataSource: label: Data Source
content: NMNH - Entomology Dept.
identifier: label: Barcode
content: USNMENT00258462
label: Other Numbers
content: Inquire SerNum : 46564
label: Other Numbers
content: USNM Type Number : 49377
label: USNM Number
content: USNMENT00258462
objectType: label: Type Citation
content: Stone, A. Proceedings of the Entomological Society of Washington. 35 : 76, none.
label: Type Status
content: Holotype
taxonomicName: label: Taxonomy
content: Animalia, Arthropoda, Insecta, Diptera, Brachycera, Tabanidae, Tabaninae
physicalDescription: label: Prep Count
content: 1
label: Preparation
content: Pinned
label: Remarks
content: Type
label: Sex
content: Female
label: Stage
content: Adult