Atroposia Pogue, 2019

Brown, John W., 2019, New genera, new species, and new combinations in New World Cochylina (Lepidoptera: Tortricidae: Tortricinae), Zootaxa 4671 (2), pp. 195-222 : 198-199

Atroposia Pogue , new genus

Type species: Conchylis oenotherana Riley, 1881 , by monotypy.

Atroposia Pogue and Mickevich, 1990: 322 (nomen nudum).

Cochylini New Genus 1 [ oenotherana group]: Brown 2005: 207; Metzler and Brown 2014: 278.

Atroposia is proposed to accommodate the single species oenotherana . Originally described in Conchylis Sodoffsky, 1837 (an unjustified emendation of Cochylis ), the species was assigned to Phalonia Hübner , [1825], 1816 by McDunnough (1939) and placed in “incertae sedis” by Powell (1983). Pogue (1986) proposed the genus Atroposia for the species in his unpublished Ph.D. dissertation; Razowski (1997) treated oenotherana under “Unplaced Cochylini ”; and Brown (2005) and Metzler & Brown (2014) treated it as “ Cochylini New Genus”. According to Pogue (1986), Atroposia is most closely related to Spinipogon among North American genera. However, based on facies and genitalia, Atroposia appears to be related to Cochylis .

Diagnosis. Atroposia is easily distinguished from other genera by facies ( Figs. 3, 4 ), which feature a somewhat two-toned forewing with a yellow-tan basal half and a pinkish red distal half with a variably developed yellowish spot. However, in some specimens both the basal and distal halves of the wing are overscaled with dark gray, reducing the two-toned pattern. Putative autapomorphies of Atroposia include the unusual shape of the valva with a distinctly pointed costa and sacculus; the distal portion of the phallus, with a pair of long, pointed, flattened, lateral sheaths and three platelike internal sclerites; and the broad sterigma composed of four fused spheroid plates. The absence of the male hindwing costal roll in A. oenotherana distinguishes it from most species of Cochylis and related genera (e.g., Cochylichroa, Cochylidia , Thyraylia Walsingham, 1897 ).

Description. Head: Vertex and upper frons rough scaled, lower frons with appressed scales; ocellus present; sensory setae of antenna 1.0–1.2 times flagellomere diameter in male, shorter in female; labial palpus porrect, com- bined length of all segments 1.6–1.8 times diameter of compound eye, scaling of segment II concealing segment III; maxillary palpus 1-segmented. Thorax: Posterior crest present; lateral scale tufts of metanotum flat. Forewing in male slightly broadened distally with costa weakly convex and termen straight, moderately oblique, forewing not expanding distally in female, apex rounded in both; forewing length 3.8–5.4 mm, length 2.5–3.4 times width, slightly wider in female; without costal fold in male; Sc less than 0.5 wing length; R 1 originating at or beyond middle of discal cell; R 2 originating nearer R 3 than R 1; R 5 ending at costa; M 3 and CuA 1 separate; CuA 2 originating about 0.75 length of discal cell; CuP absent; A1+2 stalked at 0.5 length. Hindwing length 2.5–2.8 times width; costa straight, without costal roll; apex rounded; termen straight, oblique; Sc+R 1 ca. 0.75 wing length, Rs and M 1 stalked ca. 0.65 length of M 1; M 3 and CuA 1 separate; CuA 2 originating 0.65 length of discal cell; male frenulum with one acanthus, female with two. Abdomen: Unmodified. Male genitalia ( Fig. 20 ) with tegumen short, broad, convexly rounded at top; uncus absent; socius small, digitate, setose; transtilla a well-developed band, with triangulate to hooklike median process, keeled ventrally; valva highly modified, short, broad basally, with well-developed costal and saccular portions; costal portion broad at base, constricted apically into a robust, curved spine; saccular half with a short, blunt dorsal process and a longer, robust, pointed basal process; inner base of sacculus with elongate, pointed, extension confluent with arms of vinculum; vinculum arms free distally; juxta large, subrectangular, with a pair of dorso-lateral lobes. Phallus large, length about equal to basal width of valva, distally with three median platelike processes covered with minute spicules, subtended laterally by a pair of flattened, distally-pointed flanges extending ventro-terminally; vesica with minute cornuti. Female genitalia ( Fig. 34 ) with ovipositor short; papillae anales narrow, weakly sclerotized, setose, joined posteriorly; length of apophyses anteriores ca. 1.2 times length of apophyses posteriores; sterigma large, composed of four fused spheroid plates, sterigma not attached to apophyses anteriores; ductus bursae short, broad, undifferentiated from corpus bursae; corpus bursae a short convoluted sac lacking a signum; accessory bursa originating from ductus bursae.

Etymology. The name comes from the Greek “atropos, meaning without turn. In Greek mythology, Atropos (or Aisa) was one of the three Moirai, the goddess of fate and destiny. The name is feminine in gender.

Figures

FIGURES 1–10. Adults of Cochylini genera. 1. Anacochylidia maderana, Madera Canyon, Santa Rita Mountains, Arizona (EME). 2. Cagiva cephalanthana, Dorman Lake, Oktibbeha Co., Mississippi (USNM). 3. Atroposia oenotherana, Houston, Harris Co., Texas (USNM). 4. Atroposia oenotherana, Radisson, Onondaga Co., New York (USNM). 5. Cybilla hubbardana, Shafter, Presidio Co., Texas (USNM). 6. Cybilla hubbardana, Lordsburg, Hidalgo Co., New Mexico (CNC). 7. Honca grandis, Chimney Gulch, Golden, Colorado (USNM). 8. Pogospinia floridana, Long Key State Park, Monroe Co., Florida (USNM). 9. Nycthia pimama, Portal, Cochise Co., Arizona (USNM). 10. Nycthia yuccatana, Falcon State Park, Starr Co., Texas (USNM).

FIGURES 19–26. Male genitalia of Cochylini genera. 19. Anacochylidia maderana, Palmerlee, Arizona, USNM slide 23,359. 20. Atroposia oenotherana, Padre Island National Seashore, Texas, USNM slide 153,596. 21. Cagiva cephalanthana, Dorman Lake, Mississippi, USNM slide 150,530. 22. Cybilla hubbardana, Tucson, Arizona, USNM slide 29,397. 23. Honca grandis, Ogden Canyon, Utah, USNM slide 153,598. 24. Nycthia pimama, Blair Valley, California, USNM slide 144,042. 25. Nycthia yuccatana, Laguna Atacosa, Texas, USNM slide 120,405. 26. Pogospinia floridana, Key Largo, Florida, USNM slide 23,249.

FIGURES 33–38. Female genitalia of Cochylini genera. 33. Anacochylidia maderana, Palmerlee,Arizona, USNM slide 23,358. 34. Atroposia oenotherana, Padre Island National Seashore, Texas, USNM slide 153,597. 35. Cagiva cephalanthana, Dorman, Mississippi, USNM slide 153,609. 36. Cybilla hubbardana (holotype), Tucson, Arizona, USNM slide 23833. 37. Honca grandis, Wellsville, Utah, USNM slide 153,599. 38. Nycthia pimama, Miller Canyon, Arizona, slide MGP 660.