Identification
Head: Black. Female has dense yellowish hair around antenna bases. Male has silvery hair over entire face. Lower face (clypeus) has a median raised ridge.
Antenna: Black; sometime with reddish-brown on base (scape), pedicel and segment 1.
Thorax: Black; segments have intermittent pale yellowish outline. Collar thick, unbroken. Segment 1 (scutum) has longitudinal indent at mid line, with a pair of very short stripes, one on each side of indent; these stripes do not touch collar. Segment 2 (scutellum) has two thick yellowish lines on lower margin. Segment 3 (propodeum) has an arc of white hair at each side, curving down toward center. Thorax side tubercle has a dense yellowish fringe, and another spot next to it. Female has wide, intermittent line of yellowish hair from tubercle up to wing base and ending in a tuft near propodeum, another crescent patch below tubercle. Thorax side of male sparsely covered with feathery yellowish hair, except for one small bare spot.
Wings: Wing knobs (tegulae) reddish on female, black on male. Wings slightly tinted, tips darker. Veins black.
Legs: Reddish-brown, covered with silvery-white hair. Hind coxa has dense silver-white hair. Thighs (femora) with black streaks on female. Male thighs entirely black. Female has red feet, male has black. Spurs black.
Males from southern U.S. have more red on legs; northern population legs can be almost entirely black.
Abdomen: Black with yellow to pale yellowish stripes; stripes wider on male.
Segment 1 has two stripes. Base stripe is wide with an extremely wide side edge joint. Lower stripe is narrow. Both are interrupted at center. Black area between the two stripes is a small triangle.
Segment 2 stripe narrowly interrupted at center. Side patches present or not.
Segments 3 and 4 stripes continuous across segments. Segment 4 stripe is paler yellow.
Segment 5 on female has a triangular grayish patch at each side edge, pointing inward. Another grayish triangle on lower margin also points inward (or up) and has a dark oval center with dark hairs.
Underside of female blackish. Segments 2 to 4 striped. Segment 5 not concave.
Segments 5 and 6 on male stripes are almost white to silvery-white.
Underside of male 2-3 have white hair stripes; 4-5 have long tufts of brown/white hair. Tip narrowing, square.
Record # | Date | Locale | State | Lat/Lon | Collected By | Count |
---|---|---|---|---|---|---|
344853 | 2023-08-19 | Deer Creek Wildlife Management Area | Iowa | 42.718031 -96.511437 | Jay Gilliam | 1 |
344816 | 2023-08-12 | Heron Bend Conservation Area | Iowa | 40.572206 -91.424038 | Jay Gilliam | 1 |
344820 | 2023-08-12 | Turkey Run Wildlife Area, Lee County | Iowa | 40.557863 -91.680371 | Jay Gilliam | 1 |
348057 | 2023-08-12 | Saylorville Visitor Center | Iowa | 41.707843 -93.670911 | Mark Brown | 1 |
344799 | 2023-08-07 | Warren County, Iowa | Iowa | Location Protected | Jay Gilliam | 1 |
347460 | 2023-07-17 | Glenwood | Iowa | 41.055623 -95.745804 | Tabitha Panas | 1 |
337074 | 2023-07-01 | La Porte City | Iowa | 42.308379 -92.192004 | Kenneth Heiar | 1 |
319769 | 2022-08-27 | Loess Hills Scenic Overlook | Iowa | 41.905198 -95.945198 | Jay Gilliam | 1 |
319762 | 2022-08-21 | Sylvan Runkel State Preserve | Iowa | 42.104116 -95.973382 | Jay Gilliam | 1 |
320019 | 2022-08-01 | Warren County, Iowa | Iowa | Location Protected | Jay Gilliam | 1 |
269334 | 2020-07-19 | Prairie City | Iowa | 41.599092 -93.228814 | Denise Keys | 1 |
182013 | 2016-08-14 | Desoto National Wildlife Refuge | Iowa | 41.517464 -96.020974 | Mark Brown | 1 |
182014 | 2016-08-14 | Desoto National Wildlife Refuge | Iowa | 41.541092 -96.030807 | Mark Brown | 1 |