Schinia obliqua Smith
Creators: name: Pogue, Michael G.
name: Harp, Charles E.
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Noctuidae
Schinia
Schinia obliqua

description: Schinia obliqua Smith
(Figs. 1­3, 7­8, 11, 13)
Schinia obliqua Smith 1883:229 Smith 1893:276. Dyar 1903:188. Barnes and McDunnough 1917:39. McDunnough 1938:105. Todd 1982:154. Franclemont and Todd 1983:159. Poole 1989:896. Poole and Gentili 1996:772. Hardwick 1996:183 [syn.: S. unimacula Smith, S. coolidgei Hill]
Diagnosis. Maculation: Forewing of obliqua has distinct, basal, median, and subterminal bands that are light brown to grayish olive in coloration. The median band is sinnuate around the reniform spot. The subterminal band is constricted opposite the reniform spot and can be contiguous or separate at this point. In unimacula the bands are less distinct, and the median band is straighter, resulting in a larger white area between the basal and median bands (Figs. 4­6). The subterminal band in unimacula is represented by a distinct subapical spot with the remainder of the band faint, becoming more distinct towards the posterior forewing margin. The reniform spot is usually larger and better developed in unimacula than in obliqua. Male genitalia: The uncus is longer and thinner in unimacula than in obliqua. The costal valve margin is gently curved in unimacula and distinctly angulate toward the apex in obliqua; the valve is narrower in unimacula than in obliqua; and the corona has fewer, stouter setae in unimacula than in obliqua. The saccus in unimacula is only slightly wider than in obliqua. Female genitalia: The papillae anales apex is pointed in unimacula and broadly rounded in obliqua, which can easily be seen without dissection. The setae on the distal margin of the seventh segment are large and numerous in unimacula and are weak and fewer in obliqua; smaller setae occur sparsely over the rest of the segment in obliqua, but are absent in unimacula.
Description. Male genitalia (Figs. 7­8): Uncus short (0.28 X valve length), robust. Valve elongate (length 7.5 X width), costal margin angulate at approximately 85% of length; ampulla short (0.04 X valve length); corona at apical 10% of valve length; sacculus well developed and 25% of valve length, dorsal margin distinct. Aedoeagus slightly curved; vesica with 2 coils and minute spicules. Female genitalia (Fig. 11): Papillae anales broadly triangulate, apex broadly rounded. Seventh segment with weak, elongate setae in a row along distal margin; smaller setae sparsely scattered on remainder of segment. Eighth segment with fine spicules. Ductus bursae moderately elongate. Appendix bursae coiled. Corpus bursae ovate; signa composed of 4 scobinate bars.
Type material. Lectotype male, in USNM designated by Todd (1982). Label data: (1) S. obliqua Smith (handwritten in black ink); (2) Collection J.B. Smith; (3) Type No. 288 USNM [red label]; (4) male genitalia on slide, Nov. 29, 1937, JFGC # 1382; (5) Genitalia slide male, JFGC, USNM 40062; (6) LECTOTYPE, Schinia obliqua Smith; (7) USNM ENT 00143254 [bar code].
Larval host plant. Unknown.
Flight period. July through September.
Distribution (Fig. 13). Western Texas, southwestern New Mexico, and southern Arizona.
Material Examined. Specimens were examined from the following states and counties: ARIZONA: Apache Co., Cochise Co., Graham Co., Maricopa Co., Pima Co., Santa Cruz Co. NEW MEXICO: Luna Co. TEXAS: Brewster Co., Jeff Davis Co.
Discussion. The intensity and color of the forewing bands are variable. The small black spots at the ends of the cells along the outer margin can be present or absent. The hindwing can be almost immaculate to quite well marked with a distinct discal spot and marginal band.
description: Published as part of Pogue, Michael G. & Harp, Charles E., 2003, Revised status of Schinia unimacula Smith including morphological comparisons with Schinia obliqua Smith (Lepidoptera: Noctuidae: Heliothinae), pp. 1-8 in Zootaxa 226 (1) on pages 2-4, DOI: 10.11646/zootaxa.226.1.1, http://zenodo.org/record/5014670