Ancylosis lativalvata Ren & Li, 2025

Gulzar, Abdukirim, You, Wanxue, Ren, Yingdang & Li, Houhun, 2025, The genus Ancylosis Zeller, 1839 (Lepidoptera: Pyralidae: Phycitinae) from Ningxia Shapotou Nature Reserves of China, Zootaxa 5719 (1), pp. 73-90 : 82

publication ID	https://doi.org/10.11646/zootaxa.5719.1.3
publication LSID	lsid:zoobank.org:pub:8B828959-6A7C-4717-9273-D470E0A0D9FD
persistent identifier	https://treatment.plazi.org/id/03823958-3358-FF8A-4592-FF596CB8F899
treatment provided by	Plazi
scientific name	Ancylosis lativalvata Ren & Li
status	sp. nov.

Treatment

Ancylosis lativalvata Ren & Li , sp. nov.

( Figs 7, 8 View FIGURES 5–10 , 13 View FIGURES 11–15 , 18 View FIGURES 16–19 )

Type material. Holotype ♂, CHINA, Ningxia: Shapotou, Zhongwei , 1226 m, 15.VII.2023, leg. HH Li, H Sun & ZW Han, gen. slide No. GLZ24342.

Paratypes: CHINA, Ningxia: 1♂ 2♀, Shapotou, Zhongwei , 1200 m, 1437 m, 10.VIII.2000, 5.VIII.2023, leg. HH Li & SX Wang, HH Li, H Sun & ZW Han, gen. slide Nos. DYL00309 ♂, GLZ24174 ♀, GLZ24184 ♀; 1♂, Liuyangbu , Yanchi County, 1320 m, 11. VI.2014, leg. HH Li, W Guan & MQ Yang ; Gansu: 1♀, Minle County, 1343 m, 26.VII.2006, leg. XP Wang & XF Shi, gen. slide No. LJY11241 ; Inner Mongolia: 4♂, Baoyintu, Urad, Bayannur City , 1075 m, 17.VIII.2006, leg. ZW Zhang, gen. slide No. KDH05407 ; 9♂ 9♀, Erdaoqiao, Ejinaqi , 927 m, 17−18. VII.2006, leg. XP Wang & XF Shi, gen. slide Nos. KDH05419 ♂, LJY11219 ♂, LJY10687 ♀, LJY11014 ♀; 3♀, Mt. Helanshan, Azuoqi , 1836−2260 m, 3−13.VIII.2010, leg. HX Liu & ZW Zhang, gen. slide No. LJY10613 .

Diagnosis. The new species is characterized by the large wingspan, the forewing with two distinct horizontal stripes, edged with obvious dark brown scales on the outer side of the antemedial line and on the inner side of the postmedial line. The new species is similar to A. morbosella Staudinger, 1879 in the forewing pattern, but can be distinguished from the latter in the male genitalia by having a large horn-like clasper, which is not conspicuous in the latter species; and in the female genitalia by the corpus bursa having two rectangular clusters of spines, in contrast to one cluster in A. morbosella .

Description. Adult ( Figs 7, 8 View FIGURES 5–10 ). Wingspan 31.5−33.5 mm.

Head. Vertex white, mixed with some grayish white or yellowish white scales. Antenna grayish white; scape 3 times as long as wide; flagellum with basal I~VII flagellomeres in male slightly arched bending, cilia on ventral surface about 1/2 length of diameter of flagellum, cilia in female extremely short. Labial palpus grayish white, upturned vertically over head; segment II 6 times as long as segment III; segment III slightly tilted forward in male, straight in female.

Thorax. Mesonotum, patagia, tegulae yellowish white. Forewing in male yellowish white, mixed with yellowish brown, in female grayish white with large amount of dark grayish-brown scales; antemedial and postmedial lines indistinguishable from ground colour, antemedial line edged with wide dark brown fascia on outer side, postmedial line edged with dark brown fascia on inner side; two discocellular spots grayish-brown, faint, connected; terminal line yellowish brown; fringe gray. Hindwing grayish yellow; terminal line gray; fringe light gray. Legs grayish white.

Abdomen. Yellowish white on dorsal surface, grayish white on ventral surface. Eighth sternum trapezoidally convex anteriorly, triangularly convex posteriorly. Two pairs of culcita filiform, about 1/2 length of valva.

Male genitalia ( Fig. 13 View FIGURES 11–15 ). Uncus bullet-shaped, 2.5 times as long as wide at base, apex pointed. Gnathos about 3/5 length of uncus, basal half inflated, distal half tapered, apex hooked. Transtilla sprout-shaped, about 2/3 length of juxta. Valva wide, 3 times as long as median width, subparallel before rounded apex; clasper strongly sclerotized, horn-like, slightly blunt apically; costa reaching tip of costal margin, about 1/3 width of valva; sacculus banded, slightly wider medially, about 1/2 length of valva, with sparse setae. Juxta 1.3 times as long as wide; lateral lobes thumb-shaped. Vinculum 1.25 times as long as maximum width, anterior margin straight, slightly produced anterolaterally. Aedeagus slightly curved, about 4/5 length of valva.

Female genitalia ( Fig. 18 View FIGURES 16–19 ). Papillae anales sub-triangular, length nearly equal to width, with dense fine setae. Apophyses anteriores longer than apophyses posteriores. Eighth tergum sub-quadrate, convex in W-shape on anterior margin, slightly concave medially on posterior margin. Antrum wide basally, weakly narrowed distally, 2.5 times as long as maximum width. Ductus bursae 3.5 times as long as corpus bursae, thin at posterior part and gradually widened towards the anterior part, with several cone-shaped spines in its widened anterior portion. Corpus bursae rounded, with 2 rectangular clusters of cone-shaped spines in posterior portion. Ductus seminalis from posterior 1/10 of ductus bursae.

Distribution. China ( Gansu, Inner Mongolia, Ningxia).

Etymology. The specific epithet is derived from the Latin latus (wide) and valvatus (valva), referring to the wide valva in the male genitalia of the new species.