Iragoides peiwangi, Wu & Solovyev & Han, 2022

Wu, Jun, Solovyev, Alexey V. & Han, Hui-Lin, 2022, Two new species and two unrecorded species of Limacodidae (Lepidoptera, Zygaenoidea) from Xizang, China, ZooKeys 1100, pp. 71-85 : 71

Iragoides peiwangi sp. nov.

Figs 1 , 2 , 12 , 13

Material examined.

Holotype. ♂, China, Xizang Autonomous Region, Linzhi (= Nyingchi) City , Motuo (= Medog) County , Beibeng Countryside , Dergong Village , 25.V.-4.VI.2021, HL. Han leg., genit. prep. WuJ-523-1 (NEFU) . Paratypes. 5 ♂, China, same data as for holotype, genit. prep. WuJ-524-1 (NEFU) .

Diagnosis.

The new species I. peiwangi sp. nov. (Figs 1 , 2 ) is similar in appearance to I. elongata (Figs 3-5 ), but can be distinguished from the latter by the forewing and male genitalia characters as follows. The forewing of I. peiwangi sp. nov. is broad, not elongated; the ground colour is dark reddish brown; the subterminal line is oblique, dark brown and runs from the costal margin near apex to tornus. However, in I. elongata , the forewing is elongated; the ground colour is yellowish brown; and the subterminal line is extremely blurred and barely visible.

In the male genitalia, the new species (Figs 12 , 13 ) displays distinct differences with I. elongata : the cucullus is sagittate; the upper part of juxta is short, nearly square; the aedeagus is twisted. In I. elongata (Figs 14 , 15 ), the cucullus is rounded; the upper part of juxta is long, extending above the upper base of the valvae, and nearly rectangular; the aedeagus is slender and arc-shaped without being twisted.

Description.

Adult (Figs 1 , 2 ). Forewing length 18-20 mm, wingspan 40-43 mm in male. Head densely covered with reddish orange scales; labial palpus dark brown; antenna shortly pectinate, dark brown, with a distinct silvery basal spot. Thorax mainly reddish orange; tegula pale brown. Forewing broad, not elongated, with a blunt apex; middle of outer margin slightly presented at an obtuse angle; forewing ground colour dark reddish brown, with a dark brown oblique subterminal line that runs from costal margin near apex to tornus which is behind vein Cu1A and almost invisible; discal spot dark, not distinct. Hindwing ground colour brown, dark brown along with the anal margin. Scales on legs dark brown, with distinct slivery spots on distal parts of coxa, femur, tibia and tarsal segments of foreleg. Tibial spurs 0-2-4. Abdomen yellowish brown with an orange-red median band dorsally; ventral side mostly brown with terminus pale brown.

Male genitalia (Figs 12 , 13 ). Uncus triangular with a strongly sclerotized apical spur. Gnathos well developed, hook-shaped, slightly blunt apically. Tegumen broad. Valva narrow, densely covered with hairs; sacculus slightly inflated, without sacculus process; costa with a sclerotized plate-shaped basal process; cucullus sagittate, pointed apically. Juxta flatted with upper part nearly square and basal part with a pair of membranous, finger-shaped lateral processes. Vinculum robust and strongly sclerotized. Saccus not obvious. Aedeagus slender, twisted, slightly inflated at caecum and with a long, strongly sclerotized spur at terminal part.

Female genitalia. Unknown.

Bionomics.

The specimens were collected with a light trap at altitudes of ~ 850 m a.s.l in May to June. The collection area is in a subtropical climate zone (Fig. 25 ).

Distribution.

China (Xizang: Motuo).

Etymology.

The species is dedicated to Mr. Pei Wang, who works in the People’s Government of Motuo County, and was of great assistance our collecting in Motuo.

Figures

Figures 1 - 11. Adults: 1 Iragoides peiwangi sp. nov., male, holotype, Xizang, China (NEFU) 2 I. peiwangi sp. nov., male, paratype, Xizang, China (NEFU) 3 I. elongata Hering, 1931, male, Chongqing, China (NEFU) 4 I. elongata Hering, 1931, male, Yunnan, China (NEFU) 5 I. elongata Hering, 1931, female, Chongqing, China (NEFU) 6 Caelestomorpha serratus sp. nov., male, holotype, Xizang, China (NEFU) 7 C. serratus sp. nov., male, paratype, Xizang, China (NEFU) 8 C. endodonta (Hampson, 1987), male, N. W. India (MWM / ZSM) 9 Euphlyctina phaeopasta (Hampson, 1906), male, Xizang, China (NEFU) 10 E. phaeopasta (Hampson, 1906), female, Xizang, China (NEFU) 11 Mummu aerata Solovyev & Witt, 2009, male, Xizang, China (NEFU). Scale bar: 1 cm.

Figures 12 - 16. Male genitalia of Iragoides spp. 12 I. peiwangi sp. nov., male, holotype, Xizang, China (NEFU) 13 I. peiwangi sp. nov., male, paratype, Xizang, China (NEFU) 14 I. elongata Hering, 1931, male, Chongqing, China, genit. prep. WuJ- 536 - 1 (NEFU) 15 I. elongata Hering, 1931, male, Yunnan, China, genit. prep. WuJ- 086 - 1 (NEFU) 16 I. elongata Hering, 1931, female, Chongqing, China, genit. prep. WuJ- 708 - 2 (NEFU). Scale bars: 2 mm.

Figures 24 - 27. Biotopes: 24 China, Chongqing Municipality, Mt. Simian, biotope of Iragoides elongata Hering, 1931, photo by J. Wu 25 - 27 China, SE Xizang, Linzhi City, Motuo County: 25 Beibeng Countryside, Dergong Village, biotope of Iragoides peiwangi sp. nov., Caelestomorpha serratus sp. nov., Euphlyctina phaeopasta (Hampson, 1906) and Mummu aerata Solovyev & Witt, 2009, photo by H. L. Han 26, 27 two different collecting sites in Gedang Countryside, biotope of Caelestomorpha serratus sp. nov. and Euphlyctina phaeopasta (Hampson, 1906), photo by J. Wu.