Sympistis amun Troubridge 2008, sp. n.
Creators: name: Troubridge, J. T.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Noctuidae
Sympistis
Sympistis amun

description: <i>Sympistis amun</i> Troubridge sp. n. (Figs. D-10, D-11, M-6, R-3) <b>Diagnosis.</b> <i>Sympistis amun</i> flies with <i>S. chons</i>, which is the only species with which it could be confused. The forewing of <i>S. chons</i> is gray, with a denticulate white subterminal line; that of <i>S. amun</i> is grayish brown and the white subterminal line is always absent. The basal portion of the hindwing of females of both species is darker than that of the males; that of <i>S. amun</i> is darker than that of <i>S. chons</i> with male <i>S. amun</i> about as dark as that of female <i>S. chons</i> and that of female <i>S. amun</i> much darker than that of <i>S. chons</i>. <b>Description</b>. Antennae filiform, prothoracic collar dark brown with wide, light grayish brown median band; head dark brown; thorax and abdomen brown; tegulae brown. Coremata with brushes, levers, and pockets present on base of male abdomen. Forewing length 15-18 mm. <b>Dorsal forewing</b> ground color grayish brown; antemedial and postmedial lines may be present as a series of black dots on veins; orbicular spot oval to ellipsoidal; orbicular, reniform, and claviform spots delineated by thin black outer rows of scales; black basal dash; black dashes extent through each cell in subterminal portion of wing to meet black terminal line; subterminal line may be present as a series of light grayish brown dots on theses dashes; fringe dark grayish brown. <b>Dorsal hindwing</b> medium brown basal area blends to darker brown terminal shade in male, darker brown in female; discal lunule grayish brown; dark brown scales on veins; fringe brown with darker brown median line. <b>Male genitalia</b>. (Fig. M-6) Valve shaped like the prow of a canoe with distinct corona; ampulla of clasper squat, bends posteriorly with terminal spine arcing upward from posterior margin. Vesica with two small basal diverticulae, bends slightly downward basally and bends a little farther downward about ½ of the way toward apex; a ribbon of sparse cornuti extends dorsolaterally on left from base of vesica to apex; a second ribbon of longer, stouter cornuti extends dorsolaterally on right of apical ½ of vesica; a single spine and a tuft of longer cornuti extend from apex. <b>Female genitalia</b>. (Fig. R-3) Ovipositor lobes rounded, apex with ring of long setae, corona of short setae mid-way down -these setae produced at 90° to the abdomen; a ruff of longer, finer setae encircles ovipositor lobes at base; a small sclerite occurs on ventral surface of ductus bursae at ostium bursae, ductus bursae elongate, widening slightly in middle ½ and then narrowing at appendix bursae; elongate appendix bursae gradually narrows toward ductus bursae, rounded at anterior end with ductus seminalis arising from right side of anterior end; corpus bursae about ½ as large as appendix bursae arises from left side of appendix bursae near ductus bursae, elongate signae on dorsal and ventral sides. <b>Type material</b>. <b>Holotype</b> male: Canada, British Columbia, Kirby Flats Rd., 50° 32' N, 121° 43' W, 6 vii 1999, J. Troubridge, in the CNC. <b>Paratypes:</b> 41♂ 17♀: <b>British Columbia</b>: same data as holotype, 1♀; E. end of Seton Lk., base of Mt. McLean, 21 vi 1996, J. Troubridge, 1♂; E. end of Seton Lk. At hydro dam, Seton Lk., 23 vi 1995, J. Troubridge, 1♂; E. end of Seton Lk., 13 vi 1996, J. Troubridge, 1♂ 5 km. SE. OK Falls, 7- 13 vi 1992,Troubridge and Gardiner, 1♂; Kirby Flats Rd., 50° 32' N, 121° 43' W, 10 vii 1999, J. Troubridge, 5♂ 3♀; Kirby Flats Rd., 50° 32' N, 121° 43' W, 12 vi 1998, J. Troubridge, 3♂; Kirby Flats Rd., 50° 32' N, 121° 43' W, 20 viii 1999, J. Troubridge, 1♀; Kirby Flats Rd., S. of Lillooet, 6 vii 1999, J. Troubridge, 1♂; Kirby Flats Rd., S. of Lillooet, 18 vii 2000, J. Troubridge, 2♂ 1♀; Kirby Flats Rd., S. of Lillooet, 4 vii 1997, J. Troubridge, 1♀; Kirby Flats Rd., 50° 32' N, 121° 43' W, 21 vi 2001, J. Troubridge, 5♂; Kirby Flats Rd., 50° 32' N, 121° 43' W, 18 vii 2000, J. Troubridge, 3♂ 4♀; Kirby Flats Rd., 50° 32' N, 121° 43' W, 26 vii 1999, J. Troubridge, 1♂ 1♀; Kirby Flats Rd., 50° 32' N, 121° 43' W, 23 vi 2000, J. Troubridge, 1♀; Kirby Flats Rd., 50° 32' N, 121° 43' W, 7 vii 2000, J. Troubridge, 8♂. <b>Alberta:</b> Waterton Lks NP, Blakiston Valley Rd., Bellevue Hill, 39.100° N, 113.903° W, 7 vii 2005, B. C. Schmidt, 2♀. <b>Oregon</b>: Josephine Co., Bolan Mtn., 42° 01' N, 123° 27' W, 5200' 27 vii 2001, J. Troubridge, 8♂ 2♀. <b>California</b>: Jackson Creek, Plumas Co. 39° 51'N, 120° 39' W, 5400', 14 vi 1999, J. Troubridge, 1♂. <b>Etymology</b>. From Egyptian mythology, Amun is god of the wind and ruler of the air. It is a noun in apposition. <b>Distribution.</b> This species is known from dry montane forests in extreme southwestern Alberta and central British Columbia and again in Oregon and northern California.
description: Published as part of <i>Troubridge, J. T., 2008, A generic realignment of the Oncocnemidini sensu Hodges (1983) (Lepidoptera: Noctuidae: Oncocnemidinae), with description of a new genus and 50 new species, pp. 1-95 in Zootaxa 1903 (1)</i> on pages 31-32, DOI: 10.11646/zootaxa.1903.1.1, http://zenodo.org/record/5134476