Ectomyelois bipectinalis, Ren, Yingdang & Yang, Linlin, 2016

Ren, Yingdang & Yang, Linlin, 2016, Ectomyelois Heinrich, 1956 in China, with descriptions of two new species and a key (Lepidoptera, Pyralidae, Phycitinae), ZooKeys 559, pp. 125-137 : 127-130

Taxon classification Animalia Lepidoptera Pyralidae

Ectomyelois bipectinalis sp. n. Figs 3, 4, 8, 11

Type material.

Holotype ♂, CHINA: Guanping (22°14'N, 100°53'E), Xishuangbanna, Yunnan, 1200 m, 19-VIII-2005, coll. Yingdang Ren. Paratypes: Fujian: 2 ♀♀, Mt. Tianzhu (24°35'N, 117°55'E), 220 m, 8,14-IX-2010, coll. Yinghui Sun & Jing Zhang. Gansu: 1 ♂, Fanba (32°44'N, 105°07'E), Wenxian, 718 m, 18-VII-2005, coll. Haili Yu, gen. slide no. RYD04745. Guangxi: 1 ♂, Yachang Yard, Leye County (24°47'N, 106°33'E), 665 m, 24-VII-2004, coll. Jiasheng Xu; 1 ♂, Mt. Yuanbao (25°14'N, 109°07'E), 500 m, 10-VIII-2006, coll. Weichun Li, gen. slide no. LYJ10112; 1 ♂, Pingxincun, Yizhou (24°30'N, 108°40'E), 150 m, 16-VIII-2011, coll. Shulian Hao & Yinghui Sun; 1 ♂, 1 ♀, Shaoping Yard, Pingxiang (22°03'N, 106°55'E), 190 m, 24,28-VII-2011, coll. Bingbing Hu; 1 ♀, Qingshan Yard, Pingxiang(22°03'N, 106°55'E), 300 m, 20-VII-2011, coll. Bingbing Hu. Hainan: 1 ♂, Mt. Diaoluo (18°39'N, 109°54'E), 70 m, 27-V-2007, coll. Zhiwei Zhang & Weichun Li, gen. slide no. LJY10104; 1 ♀, Mt. Duowen (19°48'N, 109°45'E), 120 m, 2-V-2009, coll. Qin Jin & Bingbing Hu, gen. slide no. LJY10105; 1 ♀, Wuzhishan (18°46'N, 109°30'E), 740 m, 14-IV-2009, coll. Qin Jin & Bingbing Hu, gen. slide no. LJY10097; 1 ♂, Shuimanxiang (18°53'N, 109°40'E), Wuzhishan, 620 m, 19-IV-2014, coll. Tengteng Liu, Wei Guan & Xuemei Hu; 1 ♂, Mt. Limu (19°10'N, 109°44'E), Qiongzhong, 640−700 m, 4-V-2014, coll. Tengteng Liu, Wei Guan & Xuemei Hu; 1 ♂, Wuzhishan (18°40'N, 109°29'E), 500 m, 12-IV-2013, coll. Yingdang Ren & Xiaoguang Liu, gen. slide no. RYD2013046 (deposited in HAASM). Yunnan: 4 ♂♂, Rare Botanical Garden, Ruili (24°00'N, 97°50'E), 1000 m, 5−8-VII-2005, leg. Yingdang Ren, gen. slide nos. RYD04718, RYD04718w; 1 ♂, Guanping (22°15'N, 100°53'E), Xishuangbanna, 1200 m, 17-VIII-2005, coll. Yingdang Ren, gen. slide no. RYD04717; 1 ♂, Botanical Garden, Menglun (21°52'N, 101°18'E), 570 m, 13-VIII-2005, coll. Yingdang Ren, gen. slide no. RYD04721; 4 ♂♂, Bubang (21°36'N, 101°35'E), Xisuangbanna, 650 m, 22−24-VIII-2005, coll. Yingdang Ren, gen. slide nos. LHX14081, LHX14081w; 1 ♂, Botanical Garden (21°55'N 101°16'E), Xishuangbanna, 560 m, 1-VIII-2010, coll. Yinghui Sun & Lixia Li; 2 ♂♂, Bakaxiaozhai (21°58'N, 101°12'E), Mengla, Xisuangbanna, 630 m, 7-VIII-2010, coll. Yinghui Sun & Lixia Li; 7 ♂♂, 1 ♀, Mengyuan (21°42'N, 101°23'E), Mengla, Xishuangbanna, 640 m, 10~13-VIII-2010, coll. Yinghui Sun & Lixia Li, gen. slide nos. LJY10351, LJY10352; 20 ♂♂, 16 ♀♀, Bubang (21°36'N, 101°35'E), Mengla, 650 m, 12~14-VII-2013, coll. Linlin Yang, gen. slide nos. RYD20120106m, RYD20120107m, RYD20120167f, RYD20120168m (deposited in HAASM).

Diagnosis.

This new species is notable superficially for its bipectinate male flagellum. It is much more similar to Ectomyelois ceratoniae in genitalic structures, but can be distin guished from the latter by the narrower uncus with width almost equaling length, the widest part is at basal 2/5, the apical projection of gnathos approximately 3/5 length of uncus in male, and the elongate corpus bursae three times as long as wide in female. In Ectomyelois ceratoniae , the uncus is more wide than long, the widest part at base, the apical projection of gnathos nearly the same length as uncus in male, and the corpus bursae is twice as long as wide in female.

Description.

Wingspan 19.5−28.0 mm (Figs 3, 4). Vertex brown, with individual scales tipped with grayish white. Antenna (Fig. 3a, b) brown; bipectinate, with pecten about twice length of width of shaft in male, shortly ciliate in female. Labial palpus brown, individual scales white-tipped. Maxillary palpus brown. Occiput, patagium, tegula and thorax brown. Forewing dark grayish fuscous, blackish brown along veins; antemedial line invisible; discal spots blackish brown, separated; postmedial line faint, grayish white, serrated; terminal line black, interrupted; cilia brown. Hindwing grayish white, pale brown along costa, termen and veins; cilia grayish white. Legs brown, mottled with grayish white, spurs grayish white. Abdomen yellowish brown.

Male genitalia (Fig. 8). Uncus bell-shaped, width almost equals length, rounded at apex, triangularly protruded laterally at basal 2/5, arched on basal margin. Apical projection of gnathos about 3/5 length of uncus, clubbed, slightly bent and furcated at apex. Transtilla trefoiled, including a pair of triangularly inflated bases, and a tongue-shaped central projection with rounded apex posteriorly. Valva three times as long as wide, evenly curved toward rounded apex, costal margin almost parallel with ventral margin except slightly convex at basal 2/3; costa strongly sclerotized, broad at base, slightly narrowed and extending to end of valva, without process apically; sacculus strongly sclerotized, stout, 2/5 length of valva. Juxta U-shaped, base an arched belt, with a pair of wide, stout, incurved lateral lobes, expanded and bearing sparse setae apically. Vinculum U-shaped, length almost equal to the widest posterior margin, slightly concave at middle of anterior margin. Phallus slightly shorter than valva, with membranous crimples internally; cornutus absent. Eighth tergite fan-shaped, 4/5 length than width, with a pair of spoon-like sclerites anteriorly; eighth sternite with a pair of triangular plates narrowly connected anteriorly. Culcita (sensu Amsel 1956) simple, one pair of fine scale tufts.

Female genitalia (Fig. 11). Anal papillae triangular, with a few setae, blunt apically. Eighth tergite slightly concave on posterior margin, trapezoidally convex on anterior margin; eighth sternite with membranous part inverse-funneled. Antrum twice as wide as length. Ductus bursae membranous, twice length of apophyses posteriores. Corpus bursae membranous, elongate, slightly shorter than ductus bursae, three times as long as wide; signum an elongate patch of microspines, placed at posterior 2/5. Ductus seminalis from junction of corpus bursae and ductus bursae.

Distribution.

China (Fujian, Gansu, Guangxi, Hainan, Yunnan).

Etymology.

The specific name is derived from the Latin prefix bi-, meaning two, and the Latin pectinalis, meaning pectinate, referring to the bipectinate male flagellum.