Calamotropha parallela Kim & Li, 2023

Kim, Yongnam, Qi, Mujie, Wang, Shuxia & Li, Houhun, 2023, Taxonomy of the genus Calamotropha Zeller (Lepidoptera: Crambidae: Crambinae) from China, Zootaxa 5297 (4), pp. 451-482 : 467-468

Calamotropha parallela Kim & Li , sp. nov.

( Figs 22 , 44 , 64 )

Type material. Tibet: Holotype ♁, Zhangmu Town (27.98°N, 85.97°E), Nyalam County, 1961 m, 8.VII.2019, leg. MJ Qi et al., slide No. KYN21226 . Paratypes (12♁ 2♀): 2♁ 1♀, Zala Village (28.63°N, 97.42°E), Zayu County, 2266 m, 29.VI.2019, leg. MJ Qi et al., slide Nos. KYN21212♁, KYN21213 ♀; 1♁, Suburbs of Mêdog County (29.33°N, 95.33°E), 1016 m, 4.VIII.2018, leg. MJ Qi, slide No. KYN21214; 2♁, Tongmai Town (30.10°N, 95.08°E), Bomi County , 2029 m, 14.VIII.2019, leg. MJ Qi, slide No. KYN21217; 2♁, 80K (29.66°N, 95.49°E), Mêdog Highway, Mêdog County , 2076 m, 9.VIII.2018, leg. MJ Qi, slide No. KYN21218; 2♁, Pailong Township (30.01°N, 95.00°E), Nyingchi County , 2031 m, 20.VI.2019, leg. MJ Qi, slide No. KYN21225, KYN21495; 3♁ 1♀, De'ergong Village , Beibeng Township , Mêdog County , 26.V–4.VI.2021, leg. HL Han, slide No. KYN21228♁, KYN21481 ♀ .

Diagnosis. The new species is similar to C. latella ( Snellen, 1890) in appearance and genitalia. It can be distinguished by the forewing with a subovate black medial speckle, and the terminal margin with three black spots on posterior 1/4; in the male genitalia by the valva serrate in distal 1/3 of the costa and with a downward-directed triangular process at distal 1/4 near ventral margin, and the ventral margin basally parallel to the costa and oblique distally; and in the female genitalia by the ductus bursae sub-funnel shaped posteriorly. In C. latella , the forewing has an elongate black medial speckle, and the terminal margin has two black dots on posterior 1/4 ( Fig. 15 ); the valva is smooth on the costa and has a small spiniform process near apex directed outward, and its ventral margin is oblique from base to apex and shallowly concave before apex ( Fig. 38 ); and the ductus bursae is tubular posteriorly ( Fig. 59 ).

Description. Adult ( Fig. 22 ). Wingspan 20.0–23.0 mm. Frons and vertex white. Maxillary palpus pale yellow basally, white distally. Labial palpus with first and second segments white on inner surface, pale yellow on outer suface except second segment dark brown at apex; third segment white on basal half, dark brown on distal half. Antenna white dorsally, greyish yellow ventrally. Patagium, tegula and thorax white; patagium with two longitudinal pale yellow stripes on dorsal surface. Forewing white; medial fascia pale yellow, incurvated to angle at middle, excurved at anterior 1/6 and posterior 1/6; medial speckle black, small subovate; subterminal fascia yellow, arched outward medially, slightly sinuate inward to dorsum posteriorly; costal margin with pale yellow stripes subparallel to medial fascia between medial and subterminal fasciae; apical spot yellow; pale yellow streak from before apical spot to anterior 1/4 of termen and parallel to subterminal fascia; terminal margin pale yellow, with three black spots on posterior 1/4; fringe pale orange, luster. Hindwing and fringe white. Legs white to yellow, tarsi of mid- and hindlegs pale brown and white. Abdomen white.

Male genitalia ( Fig. 44 ): Uncus wide at base, uniformly slender distally, rounded at apex. Gnathos about 1.6 X as long as uncus, wide basally, narrowed distally, slightly curved ventrad near base, serrate medially on dorsal margin. Tegumen sub-triangular, narrowed anteriorly. Valva with costa straight, serrate on distal 1/3, ventral margin with basal 2/3 parallel to costa, distal 1/3 oblique to rounded apex; triangular process from distal 1/4 near ventral margin directed downward. Pseudosaccus digitate, about half length of uncus. Saccus broad basally, narrowed distally. Juxta V-shaped, narrowed distally. Phallus slender, about twice length of valva, slightly curved at basal 1/4; ductus ejaculatorius arising from basal 1/4 of phallus; vesica with 2–5 spiniform cornuti, longest cornutus at basal 1/3, other smaller cornuti separately spaced in distal 1/3.

Female genitalia ( Fig. 64 ): Papillae anales ovate. Eighth sternum about twice as long as apophyses posteriores. Apophyses anteriores shorter than apophyses posteriores. Ductus bursae strongly sclerotized in posterior 7/8, with a longitudinal sclerotized band, looped in anterior 3/8. Ductus seminalis arising from anterior 3/8 of ductus bursae. Corpus bursae subelliptical, without signum.

Distribution. China (Tibet).

Etymology. The specific epithet is derived from the Latin parallelus, referring to the ventral margin of the valva basally parallel to the costa in the male genitalia.

Figures

FIGURES 17–23. Adults of Calamotropha spp. 17. C. melli, ♁; 18. C. nigerifera sp. nov., holotype, ♁; 19. C. nigripunctella, ♁; 20. C. okanoi, ♁; 21. C. paludella, ♁; 21a. C. paludella, ♁; 22. C. parallela sp. nov., holotype, ♁; 23. C. parvispina sp. nov., holotype, ♁. Scale bars = 5.0 mm.

FIGURES 40–45. Male genitalia of Calamotropha spp. 40. C. nigerifera sp. nov., holotype, slide No. KYN21260; 40a. enlarged distal part of uncus, slide No. KYN21494; 41. C. nigripunctella, slide No. KYN21234; 42. C. okanoi, slide No. KYN21487; 43. C. paludella, slide No. KYN20372; 44. C. parallela sp. nov., holotype, slide No. KYN21226; 45. C. parvispina sp. nov., holotype, slide No. KYN21305. Scale bars = 0.5 mm.

FIGURES 61–64. Female genitalia of Calamotropha spp. 61. C. nigripunctella, slide No. KYN21198; 62. C. okanoi, slide No. KYN21485; 62a. enlarged antrum, slide No. KYN21488; 63. C. paludella, slide No. KYN20371; 64. C. parallela sp. nov., paratype, slide No. KYN21481. Scale bars = 0.5 mm.

FIGURES 9–16. Adults of Calamotropha spp. 9. C. doii, ♀; 10. C. duofurcata, ♁; 11. C. duovirgata sp. nov., holotype, ♁; 12. C. formosella, ♁; 13. C. franki, ♀; 14. C. josettae, ♁; 15. C. latella, ♁; 16. C. melanosticta, ♀. Scale bars = 5.0 mm.

FIGURES 34–39. Male genitalia of Calamotropha spp. 34. C. dentatella, slide No. KYN21484; 35. C. doii, slide No. KYN21197; 36. C. duovirgata sp. nov., holotype, slide No. KYN21337; 37. C. franki, slide No. KYN21330; 38. C. latella, slide No. KYN21271; 39. C. melanosticta, slide No. KYN21268. Scale bars = 0.5 mm.

FIGURES 56–60. Female genitalia of Calamotropha spp. 56. C. doii, slide No. KYN20882; 57. C. duovirgata sp. nov., paratype, slide No. KYN21227; 58. C. franki, slide No. KYN21331; 59. C. latella, slide No. KYN21270; 60. C. melanosticta, slide No. KYN21273. Scale bars = 0.5 mm.