Spinosuncus praepandalis (Snellen, 1890)

Chen, Kai, Zhang, Dandan & Li, Houhun, 2018, Systematics of the new genus Spinosuncus Chen, Zhang & Li with descriptions of four new species (Lepidoptera, Crambidae, Pyraustinae), ZooKeys 799, pp. 115-151: 128-130

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scientific name

Spinosuncus praepandalis (Snellen, 1890)

comb. n.

Spinosuncus praepandalis (Snellen, 1890)  comb. n. Figs 6, 13, 22, 28

Botys praepandalis  Snellen, 1890: 573-574.

Material examined.

Type material. Lectotype, 1♀; Sikkim, O. Miller., [18]89, collection of H. J. Elwes, Pyralidae  Brit. Slide no. 9711 ( NHMUK).

Other material examined.

CHINA, Hubei: 1♂, 1♀, Shayuan, Hefeng, alt. 1260 m, 15,17.VII.1999, leg. Li Houhun, genitalia slides no. ZDD02388 (♂), 02389 (♀) ( NKU); Hunan: 1♀, Jiangping, Mt. Hupingshan, Shimen County, alt. 480 m, 6.V.2002, leg. Yu Haili ( NKU); Sichuan: 1♂, Wannian Temple, Mt. E’meishan, 29.59N, 103.38E, alt. 830 m, 14.VII.2014, leg. Guan Wei, Liu Shurong and Wang Xiuchun ( NKU); Chongqing: 1♂, Dawopu, Mt. Simianshan, 28.58N, 106.35E, alt. 1059 m, 12.VII.2016, leg. Chen Kai; 1♂, Tiantangba, Mt. Simianshan, 28.64N, 106.35E, alt. 921 m, 13.VII.2016, leg. Chen Kai; 1♂, Mt. Jinfoshan, alt. 1700 m, 13.VII.2010, leg. Du Xicui and Shi Shengwen, genitalia slide no. SYSU0191; 1♀, Wuli Town, Qianjiang, alt. 870 m, 23.VII.2012, leg. Xu Lijun and Zhang Jun, genitalia slide no. SYSU0196; Guizhou: 1♂, Heiwan, Jiangkou, alt. 600 m, 28.VII.2001, leg. Li Houhun and Wang Xinpu, genitalia slide no. ZDD02061 ( NKU); 2♂, Huguo Temple, Mt. Fanjingshan, alt. 1390 m, 28.V.2002, leg. Wang Xinpu, genitalia slide no. CYP12041 ( NKU); 3♂, Weng’ang Town, Maolan Reserve, Libo, 25.25N, 107.90E, alt. 814 m, 25.VII.2015, leg. Chen Kai, genitalia slide no. SYSU0038, molecular voucher no. SYSU-LEP0006; 1♂, Weng’ang Town, Libo, alt. 1345 m, 18.VII.2015, leg. Wan Jiping; Yunnan: 4♂, 2♀, Mt. Jizushan, Binchuan, 25.93N, 100.38E, alt. 1831 m, 29.VI.2012, leg. Li Jinwei, genitalia slides no. CXH12156 (♂), SYSU0045 (♂), 0076 (♀), 0980 (♀); 5♂, 1♀, Mt. Gaoligongshan, Baoshan, 24.82N, 98.78E, alt. 1700 m, 22.V.2016, leg. Duan Yongjiang, genitalia slides no. SYSU0190 (♂), 0195 (♀, molecular voucher no. SYSU-LEP0131); 2♀, Dahaoping, Tengchong, alt. 2020 m, 6.VIII.2007, leg. Zhang Dandan, genitalia slides no. SYSU0078, 0183; 1♂, Pianma Village, Lushui, Nujiang, alt. 1889 m, 16.VIII.2015, leg. Wei Xueli; 1♀, Malipo County, alt. 1098 m, 4.VI.2015, leg. Tao Manfei, genitalia slide no. SYSU0911; Tibet: 1♂, 1♀, Hanmi, Medog, alt. 2380 m, 9.VIII.2003, leg. Wang Xinpu and Xue Huaijun, genitalia slide no. CYP12062 (♂) ( NKU); 1♂, Shangzayü, Nyingchi, alt. 1936 m, 16.VIII.2015, leg. Xu Dan. INDIA: 1♂, India, Sikkim, Elwes, collection of H. J. Elwes, Pyralidae  Brit. Slide no. 8674 ( NHMUK); 1 ♂, Sikkim, O. Miller., [18]89, collection of H. J. Elwes ( NHMUK).


Spinosuncus praepandalis  has a larger wingspan (24-30 mm) than in the species described above. It has a wingspan similar to that of S. aureolalis  , but can be differentiated by the dentate lines and the thickened anterior part of the postmedial line of the forewing near the costa. In the male genitalia, it is distinguished by the distally bifid uncus, forming two sclerotized, large outwardly curved teeth with a hairy basal margin (as in S. curvisetaceus  ), the two to three straight, thick needle-shaped setae dorsally set on each side of the transtilla and the semicircular sacculus distally with the margin scle rotized and with a small process distally. In the female genitalia, it is distinguished by the sinus vaginalis without sclerotized, streak-like or hook-like notches (as in S. curvisetaceus  ) and the long and slender ductus bursae, which is more than twice as long as the diameter of the corpus bursae, differs from that of the species described above (the ductus bursae is almost as long as the length of the corpus bursae). The differences between S. praepandalis  and S. curvisetaceus  are given in the diagnosis of the latter species.


Head. As for the genus. Thorax. Yellow. Legs as described for the genus. Wingspan 24-30 mm. Wing pattern as in S. contractalis  , apart from: wings yellowish brown; lines brown and wavy; postmedial line of forewing thickened near costa, strongly sinuate to half of CuA1; postmedial line of hindwing curved to distal third of CuA2. Abdomen. Yellowish to brown, apical margin of segments tinged with white. Male genitalia (Figure 13). Uncus tapering towards apex; distal 3/4 bifid, forming two outwardly curved, strongly sclerotized teeth, medially set with dense setae, arranged in a curved line. Valva of medium width, ventral margin beyond sacculus slightly concave, length approximately 2.3 × its maximal width; transtilla extended ventrally into a projection, each lobe set with two to three straight, thick needle-shaped setae at dorsal base (one seta occasionally falls off), with one much bigger than other(s); costal band moderately wide, slightly expanded to 2/3 of dorsal margin; distal half of sacculus expanded, semicircular, with dorsal margin sclerotized, apically with small, triangular process; sella long and slender, rod-like, upcurved (bent in Figs 13 A–B), distal end slightly inflated, set with a few broad, fin-shaped setae forming editum, each seta with apex evenly divided into several filaments. Juxta pentagonal, weakly bifid distally. Phallus with distal 1/4 slightly expanded and spinulose; vesica in distal part with numerous spine-like cornuti appear funnel-shaped (Figure 13C). Female genitalia (Figure 22). Posterior apophysis with distinct hook-like expansion at basal 2/5. Sinus vaginalis without sclerotized, streak-like or hook-like notches; lamella postvaginalis band-shaped, well developed, extended to cover entire eighth segment ventrally. Antrum membranous, with a narrow sclerotized transverse band posteriorly. Ductus bursae long and slender, more than three times as long as diameter of corpus bursae; colliculum almost evenly wide. Corpus bursae small, globular; accessory bursa arising from posterior 1/3 of corpus bursae; rhombic signum with well developed, moderately separated carinae, other two angles bearing spines medially, the anterior angle smaller than the posterior angle; second signum absent.


(Figure 28). China (Hubei, Hunan, Sichuan, Chongqing, Guizhou, Yunnan, Tibet), India.