Schinia brunnea Barnes and McDunnough

Pogue, Michael G. & Harp, Charles E., 2004, A review of the Schinia tertia (Grote) species complex (Lepidoptera: Noctuidae: Heliothinae), Zootaxa 473, pp. 1-32 : 18-19

Schinia brunnea Barnes and McDunnough , revised status

( Figs. 12–16 , 24 , 33–34 , 42 , 44, 49 )

Schinia brunnea Barnes and McDunnough 1913:104 .— Barnes and McDunnough 1917:39.— McDunnough 1938:105.— Franclemont and Todd 1983:159.— Poole 1989:893.— Poole and Gentili 1996:771.— Hardwick 1996:178. [synonymy].

Diagnosis. The differences between brunnea . albafascia , and erosa are discussed above.

Description. Abdomen ( Fig. 24 ): Second sternite with well­developed hair pencil and scent pocket. Male genitalia ( Figs. 33–34 ): Uncus moderately long, length 0.85–0.90 mm (mean = 0.875 + 0.027; n=6); valve moderately long, length 2.45–2.65 mm (mean = 2.55 + 0.063; n=6), length 8.65 + 1.29 X width (n=6); saccus V­shaped; vesica with 3 coils. Female genitalia ( Figs. 42, 44 ): Papillae anales broadly triangulate, apex narrowly rounded; eighth segment with coarse scobinations; seventh segment with robust, moderate length setae in several rows along distal margin, concentrated dorsally on segment, extending to or shorter than distal margin of eighth segment.

Type material. Lectotype male, in USNM, designated by Hardwick (1996). Type locality: Loma Linda, San Bernardino, California. Type examined.

Flight period. Late summer to early fall, with a peak from mid­September to mid­ October ( Fig. 45 ).

Distribution ( Fig. 49 ). From desert areas west of the Peninsular Range and south of the Transverse Range of southern California.

Material examined. CALIFORNIA: LOS ANGELES CO., Azusa, 12 Oct. 1939 (1ɗ, 2Ψ), female genitalia slide USNM 43164; Glendale, 22 Sep. (1Ψ), female genitalia slide USNM 46821, E. D. Jones. ORANGE CO., Olive, 5 Sep. 1962 (1Ψ), J. Wilcox ( CNC); Rancho Mission Viejo, 23–25 Sep. 1999 (1ɗ), male genitalia slide MGP 11142 ( CEH), 14–20 Sep. 1999 (2ɗ) ( CNC), 15–18 Sep. 1999 (15ɗ, 3Ψ), male genitalia slide MGP 1150 ( CSU), 15–18 Sep. 1999 (2ɗ) ( CNC), N. Bloomfield. RIVERSIDE CO., Riverside, 11 Sep. 1946 (1ɗ), G. H. & J. L. Sperry. SAN BERNARDINO CO., Loma Linda, 8–15 Sep. (4ɗ, 1Ψ), male genitalia slides USNM 47156­8, female genitalia slide USNM 46839, 16 –23 Sep. (1Ψ), 28 Sep. (1Ψ), 8–15 Oct. (4Ψ), female genitalia slide USNM 47163, Barnes Coll.; San Bernardino, (1ɗ), 8–15 Oct. (3ɗ), Barnes Coll. SAN DIEGO CO., Dulzura, 15 Sep. 1926 (1ɗ, 1Ψ), Barnes Coll.; San Diego, (6ɗ) genitalia slides USNM 46838, 47155, 47159, Barnes Coll.; Warner’s, Sep. 1919 (1ɗ), G. H. Field.

Discussion. Hardwick (1996) synonymized brunnea with erosa but gave no explanation for this decision. The male genitalia in brunnea are actually more similar to those of albafascia than those of erosa . The main differences are in the valve, which is narrower in brunnea and wider in albafascia , and in the saccus, which is narrower in albafascia and slightly wider in brunnea . Several specimens from Orange and Los Angeles counties have a darker brown ground color in the forewing than typical specimens from San Diego and San Bernardino counties, which have a dark reddish­brown ground color. In addition, there are some specimens from Orange County that are intermediate between the reddish and dark brown specimens.

The distribution of brunnea is west of the Peninsular Range and south of the Transverse Range in southern California; erosa is distributed in the deserts east of the Peninsular Range.

Figures

FIGURE 45. Flight periods of Schinia species.

FIGURES 12 – 18. Adults. 12, S. brunnea, male, lectotype, California, San Bernardino Co., Loma Linda, USNM ENT 00219116; 13, S. brunnea, female, California, Orange Co., Rancho Mission Viejo, USNM ENT 0 0 157286 (CEH); 14, S. brunnea, male, California, Orange Co., Rancho Mission Viejo, USNM ENT 00218692; 15, S. brunnea, male, California, Orange Co., Rancho Mission Viejo, USNM ENT 00218693; 16, S. brunnea, male, California, Orange Co., Rancho Mission Viejo, USNM ENT 00218694; 17, S. erosa, female, California, Riverside Co., Indio, USNM ENT 00143201; 18, S. erosa, male, California, San Diego Co., Sentenac Canyon, USNM ENT 0 0 143184.

FIGURES 19 – 24. Second sternite of male abdomen. 19, Schinia tertia, Texas, Brazos Co., College Station, USNM ENT 0 0 142720, genitalia slide USNM 46835; 20, S. tertia, Utah, Utah Co., Vineyard, USNM ENT 0 0 143238, genitalia slide USNM 46817; 21, S. albafascia, California, San Bernardino Co., Ivanpah Mts., USNM ENT 0 0 142700, genitalia slide USNM 46814; 22, S. ferrisi, Arizona, Pima Co., Redington, USNM ENT 0 0 142671, genitalia slide USNM 47328; 23, S. erosa, California, Riverside Co., Indio, USNM ENT 0 0 143200, genitalia slide USNM 46842; 24, S. brunnea, California, San Bernardino Co., San Bernardino, USNM ENT 0 0 143179, genitalia slide USNM 47156.

FIGURES 25 – 34. Male genitalia. 25, Schinia tertia, Texas, Brewster Co., Alpine, USNM ENT 0 0 142723, genitalia slide USNM 46833; 26, S. tertia, aedoeagus, Texas, Carson Co., White Deer, USNM ENT 0 0 142739, genitalia slide USNM 46836; 27, S. albafascia, Utah, Wasatch Co., Midway, USNM ENT 0 0 142986, genitalia slide USNM 46827; 28, S. albafascia, aedoeagus, same data; 29, S. ferrisi, Arizona, Pima Co., Redington, USNM ENT 0 0 142671, genitalia slide USNM 47328; 30, S. ferrisi, aedoeagus, same data.

FIGURES 41 – 44. Female genitalia. 41, S. erosa, California, San Diego Co., Sentenac Canyon, USNM ENT 0 0 143186, genitalia slide USNM 47162; 42, S. brunnea, California, San Bernardino Co., Loma Linda, USNM ENT 0 0 143167, genitalia slide USNM 46839; 43, S. erosa, papillae anales, same data as Fig. 41; 44, S. brunnea, papillae anales, same data as Fig. 42.

FIGURES 48 – 49. Collecting localities for Schinia spp. 48, S. erosa, shaded area is distribution of host plant Isocoma acradenia var. acradenia (Asteraceae); 49, S. brunnea.