Tabanus trigonus
date: label: Collection Date
content: Not Stated
name: label: Collector
content: Mitsukuri
notes: label: Notes
content: [Label 1] Tabanus trigonus Coq.; [Label 2] Japan Mitsukuri; [Label 3] 254[?] * #F; [Label 4] Type No.3973 U.S.N.M.
label: Notes
content: Male and female: Head black, yellowish-gray pruinose, above the antennae white pruinose; front of female tapering anteriorly, at the narrowst point slightly narrower than the width of the first antennal joint at its base, the callosity polished black, lanceolate, the slender upper portion extending slightly over halfway to the occiput, no trace of ann ocellar tubercle; antennae yellow, the first two joints brownish yellow and covered with black hairs, the annulate portion of the third brownish black, the tooth of this joint very large; palpi yellow, covered with black hairs, proboscis brownish black, hairs of occiput and on under side of head pale yellowish; eyes bare, the upper facets in the male very much larger than the lower ones. Thorax, pleura, and scutellum black, grayish pruinose, the short, sparse hairs yellow and black, humeri yellow. Abdomen on the first segment black, opaque, gray pruinose, the hind margin yellow; remaining segments polished, yellowish brown in the female, reddish yellow in the male, darkest toward the apex of the abdomen, segments 2 to 6 each bearing an opaque, light gray pruinose triangle in the middle, the bases of the triangles resting on the posterior margins of the segments, the posterior and lateral margins of these segments yellowish-gray pruinose and covered with yellow hairs, as are also the gray triangles, hairs on the brown portion of the abdomen black; venter yellowish brown, the hind margins of the segments yellow. Legs black, the tibiae, with the exception of the apices of the front ones, yellow. Halteres yellowish brown. Wings yellowish gray, the centers of the cells usually hyalie, first posterior cell slightly narrowed at its apex, the anterior branch of the third vein bears a long appendage near the base, veins brown, stigma yellow; upper calypteres white, the lower ones yellowish brown. Length, 22 to 28 mm.
label: Record Last Modified
content: 18 Mar 2020
label: Specimen Count
content: 1
place: label: Place
content: [Not Stated], Japan
setName: label: See more items in
content: Entomology Types
publisher: label: Published Name
content: Tabanus trigonus Coquillett, 1899
dataSource: label: Data Source
content: NMNH - Entomology Dept.
identifier: label: Barcode
content: USNMENT00258512
label: Other Numbers
content: Inquire SerNum : 42732
label: Other Numbers
content: USNM Type Number : 3973
label: USNM Number
content: USNMENT00258512
objectType: label: Type Citation
content: Coquillett, D. W. 1899. Proceedings of the United States National Museum. 21 : 309.
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: Observation of Previous Damage - Parts disassociated: head, leg, abdomen, affixed to point; 03/01/2012 GC
label: Sex
content: Male
label: Stage
content: Adult