Silvius sayi
date: label: Collection Date
content: [Not stated]
name: label: Collector
content: [Not Stated]
notes: label: Notes
content: Silvius sayi, new species (Plate XXXVI, figs. 98, 102) Color. Gray with maculate wings and abdomen. Size. Length, 7mm to 8.5mm. Structural and Color Characters. Female: Vertex, frons, genae and frontoclypeus (except the denuded piceous pits on the sides of the latter), gray pollinose; ocelli reddish; frontal callus shining black, often a narrow line extending from its upper margin to the median ocellus. Antennae reddish except for the black annulate portion of the flagellum, the scape and pedicel with a grayish pruinosity; palpi reddish-brown with gray pruinosity. Dorsum of thorax and scutellum black gray pruinose, the former with the usual pale-gray pollinose stripes; pleurae and venter gray pollinose with sparse white pile. Dorsum of abdomen gray, a broad quadrate black spot beneath the scntellmn, not attaining the hind margin of the first segment; segments II to V with a row of black geminate figures (these are exhibited in varying degree dependent on the distribution of pollinosity), remaining segments black with gray hind margins. Venter of abdomen gray. Halteres brown. Wings hyaline except for the infuscated costal cell and maculate areas. Legs brown, basal portions of front and middle tibiae, and middle and hind metatarsi, yellow. Comparative Notes. This is the only nearctic Silvius with maculate wings and infuscated costal cell, by which it is immediately separated from related forms (S. laticallus n. sp., S. quadrivittatus [Say] and S. pollinosus Will.). Type Data. Holotype, female, Texas. Paratypes, two females, Texas; two females, Los Angeles Co., California; one female, San Diego, Texas, June 29, 1930, H. M. Smith. Holotype and three paratypes in the United States National Museum, catalog No. 50504; two paratypes in the Francis Huntington Snow Entomological Collection of the University of Kansas.
label: Notes
content: [Label 1] S. sayi n.sp. det. Brennan; [Label 2] Collection JMAldrich; [Label 3] TypeNo. 50604 U.S.N.M.; [Label 4] Tex
label: Record Last Modified
content: 4 Mar 2016
label: Specimen Count
content: 1
place: label: Place
content: [Not Stated], Texas, United States
setName: label: See more items in
content: Entomology Types
publisher: label: Published Name
content: Silvius sayi Brennan, 1935
dataSource: label: Data Source
content: NMNH - Entomology Dept.
identifier: label: Barcode
content: USNMENT00258480
label: Other Numbers
content: Inquire SerNum : 46879
label: Other Numbers
content: USNM Type Number : 50604
label: USNM Number
content: USNMENT00258480
objectType: label: Type Citation
content: University of Kansas Science Bulletin. 36 (8): 357, Figs. 98,102.
label: Type Status
content: Holotype
taxonomicName: label: Taxonomy
content: Animalia, Arthropoda, Insecta, Diptera, Brachycera, Tabanidae, Chrysopsinae
physicalDescription: label: Prep Count
content: 1
label: Preparation
content: Pinned
label: Remarks
content: Holotype
label: Sex
content: Female
label: Stage
content: Adult