Esenbeckia weemsi
date: label: Collection Date
content: 3 Sep 1963
name: label: Collector
content: H. V. Weems Jr.
label: Max. Elevation
content: 1981
label: Min. Elevation
content: 1829
notes: label: Notes
content: A medium-sized species with yellow and black abdomen; nonswollen, subshiny face; short, black- haired, pointed palpi; bicolored legs; and yellow- tinted wings with extreme bases sharply dark brown. Holotype female, 15 mm. Eyes bare. Front gray pollinose with a narrow, sparsely pollinose, dark median keel reaching upward to the anterior of 3 ocelli, a patch of short black bristles at the vertex, the sides moderately widened below, index 1:3.3. Sub- callus gray-pollinose. Face and cheeks subshiny brown, not unusually protuberant. Beard and pleural pile white to pale yellow, small patches of short, yellow hairs near bases of the palpi. The last dark red, slender and pointed, with slitlike, lateral bare areas in the middle third; ratio of length to proboscis is 1:3.2. Proboscis rather short, subequal to head- height. Antenna entirely orange-red, with sparse black hairs basally, the basal annulus of flagellum rather wide. Thorax dull olive black, the prealar tubercles dull reddish; mixed fine black and yellow hairs on the notum, predominantly yellow on the dark scutellum. Femora black with concolorous hairs; fore- and mid- tibiae dull reddish, the hind pair dark brown, hairs also black. Wings pale yellow, the veins and costal cells darker yellow, cells 1st M and 1st C behind the axillary excision contrasting deep brown; cell R5, closed and short-petiolate, spur veins longer than stems. Abdomen broad and compact, the first 3 segments above and below dull yellow with concolorous hairs and some black hairs basally and on middorsal nar- row, inverted black triangles that nearly cross each tergite, most prominent on tergite 2; remaining segments subshiny black, mostly black-haired with prominent fringes of yellow hairs on sides and incisures. Cerci partially extruded, orange. Mexico, State of Sinaloa, El Palmito on Rte. 40, 3.ix.63, 6000-6500 ft. H. V. Weems, Jr. In collection of the Florida State Dep. of Agriculture. This species is closest to E. triangularis Philip from Morales, which differs in more protuberant face (in profile), wider front (index 1:2.8), proportionately longer proboscis (1/3 longer than head-height and 4 l/2 times longer than palpi), narrower basal flagellar annulus, broader middorsal macules on the first 2 tergites, and a broad, basal, black band on the third, while the basal yellow of the wings is not darker than the costal cells. E. wccmsi runs to couplet 6 in my key to Esenbeckia (Philip 1954), where both E. abata Philip and E. tepicana Townsend differ as smaller, darker species, and the latter has wider front, and yellow hairs On palpi, cheeks and pleura but lacks them as abdominal fringes. Variants of the Nearctic E. incisuralis (Say) are yellower insects with the middorsal tergal spote also broader, and tergite 3 is entirely black.
label: Notes
content: [Label H] HOLOTYPE ESENBECKIA weemsi DET. n.sp. C.B.PHILIP'66; [Label 1] ELEVATION 6000-6500 FT.; [Label 2] H.V. WEEMS, JR. COLL. 3.
label: Record Last Modified
content: 18 Mar 2020
label: Specimen Count
content: 1
place: label: Place
content: El Palmito on rt. 40, Sinaloa, Mexico
setName: label: See more items in
content: Entomology Types
publisher: label: Published Name
content: Esenbeckia weemsi Philip, 1966
dataSource: label: Data Source
content: NMNH - Entomology Dept.
identifier: label: Barcode
content: USNMENT00258522
label: Other Numbers
content: Inquire SerNum : 51045
label: Other Numbers
content: SELGEM Serial Number : A8107
label: USNM Number
content: USNMENT00258522
objectType: label: Type Citation
content: Annals of the Entomological Society of America. 59 (3): 524.
label: Type Status
content: Holotype
taxonomicName: label: Taxonomy
content: Animalia, Arthropoda, Insecta, Diptera, Brachycera, Tabanidae, Pangoniinae
physicalDescription: label: Prep Count
content: 1
label: Preparation
content: Pinned
label: Sex
content: Female
label: Stage
content: Adult