Stathmopoda diplaspis ( Meyrick, 1887 )

Wang, Shuxia, Guan, Wei & Wang, Ailing, 2021, Genus Stathmopoda Herrich-Schäffer, 1853 (Lepidoptera: Stathmopodidae) from China (III): Descriptions of fourteen new species, Zootaxa 5039 (1), pp. 71-108 : 90

Stathmopoda diplaspis ( Meyrick, 1887)

( Figs 18 , 43 , 64 )

Placostola diplaspis Meyrick, 1887: 280 . TL: Arabia. TD: NHMUK.

Stathmopoda ovigera Meyrick, 1913: 93 . TL: Ceylon. TD: NHMUK.

Stathmopoda diplaspis (Meyrick) : Meyrick, 1914: 12.

Material examined. CHINA, Fujian: 1♀, Hexi Town, Nanjing County, Zhangzhou , 295 m, 10.VIII.2011, leg. J Zhang & ZB Wang ; 1♀, Xiamen University , 85 m, 2.X.2011, leg. XF Yang ; 7♀, Xiamen University , 85 m, 11–18.IX.2011, leg. J Zhang & XF Yang, slide Nos. GW 12246, GW12248, GW15001 ; Hainan: 1♂, Jianfeng Town , Ledong County, 40 m, 27.IV.2013, leg. YH Sun et al., slide No. GW 13083 ; Hong Kong: 1♂, Mail Po Edu- cation Centre N. T., Hong Kong ( UTM: 50Q JV 954 901), 27.VII.1994, 125W MBF, leg. R. C. Kendrick, slide No. GW13197 ( KFBG) ; 1♀, Mail Po Education Centre N. T., Hong Kong ( UTM: 50Q JV 954 901), 10.VIII.1994, 125W MBF, leg. R. C. Kendrick, slide No. GW13198 ( KFBG) .

Diagnosis. This species is diagnostic in the male genitalia by the sub-rectangular cucullus, the sacculus smoothly arched dorsomedially and the aedeagus with numerous spicules ranging from basal 1/4 to 3/4; in the female genitalia by the corpus bursae with two sub-rhombic signa and the ductus seminalis extremely long. This species is similar to S. paradiplaspis sp. nov. superficially, and the differences between them are stated in the diagnosis of the latter species.

Description. Adult ( Fig. 18 ). Wingspan 6.5‒8.0 mm. Head with frons silvery white; vertex silvery white to ochreous yellow; occiput ochreous yellow. Labial palpus with second segment greyish white on inner surface, yellowish brown on outer surface, third segment brown. Antenna ochreous yellow; scape yellowish brown along posterior margin, gradually deepened to dark brown toward apex. Thorax ochreous yellow, greyish brown on posterior margin; tegula ochreous yellow. Forewing dark brown; with two white patches: antemedian patch sub-triangular, extending from basal 1/5 of costal margin widened to dorsal margin between subbase and basal 1/3; postmedian patch oval, between middle and basal 2/3; fringe greyish brown. Hindwing and fringe pale greyish brown. Legs pale yellow on dorsal surface; ventral surface cream white, with exceptions: fore tibia and tarsus blackish brown on outer surface; mid tibia with ochreous yellow bristles at middle and apex on dorsal surface, black at apex; hind tibia annulated with black and bearing long ochreous brown bristles at apex. Abdomen greyish brown on dorsal surface, cream white on ventral surface.

Male genitalia ( Fig. 43 ). Uncus wide at base, narrowed to apex, distal 1/3 slender, beak-shaped in lateral view; with long setae laterally. Gnathos sub-triangular, gradually narrowed from base to apex, apex curved downward. Tegumen with height twice length of uncus. Valva wide at base, narrowed to cucullus; cucullus sub-rectangular, extending obliquely outward, straight on dorsal margin, obtuse on ventral margin, rounded at apex; costa convex dorsally; sacculus 2/3 length of valva, smoothly arched dorsomedially, slightly concave on ventral margin, apex pointed, exceeding ventral corner of cucullus, not free from cucullus. Vinculum narrowly banded; saccus obtusely rounded on anterior margin, 1/4 length of uncus. Juxta sub-rounded; anellar lobes oval, about same length as juxta. Aedeagus same length as valva, basal 3/4 almost uniformly wide, with a sclerotized plate near base, with numerous spicules ranging from basal 1/4 to 3/4, distal 1/4 gradually narrowed; distal process slender, 1/4 length of aedeagus, pointed at apex; cornutus absent.

Female genitalia ( Fig. 64 ). Papillae anales longer than wide, fused in conical shape, with short setae. Intersegmental membrane between papillae anales and eighth abdominal segment approximately 1.8 times length of papillae anales. Apophyses posteriores 1.5 times length of apophyses anteriores. Eighth segment straight on posterior margin, with long setae; eighth tergite rectangular; eighth sternite produced anteriorly. Antrum funnel-shaped. Ductus bursae almost uniform, 1.3 times length of corpus bursae. Corpus bursae sub-rounded; with two large, subrhombic signa, located at middle, each with a sclerotized ridge, length approximately 3/4 as long as median width of corpus bursae. Ductus seminalis originating from transition of corpus bursae and ductus bursae, extremely long, tubular, with numerous microspines at base and in distal half; bulla elliptical, located at basal 1/4.

Distribution. China (Fujian, Hainan, Hong Kong); India, Pakistan, Iran, Saudi Arabia, Yemen, Tajikistan ( Kasy 1973: 263).

Notes. This species is newly recorded for China.

Figures

FIGURES 13‒19.Adults of Stathmopoda spp. 13, S. miniloba sp. nov., paratype, ♀; 14, S. paraxanthostigma sp. nov., paratype, ♂; 15a, S. xanthostigma sp. nov., paratype, ♀; 15b, S. xanthostigma sp. nov., paratype, ♀; 16, S. sphaeroidea sp. nov., paratype, ♀; 17, S. delitescens sp. nov., paratype, ♀; 18, S. diplaspis, ♀; 19, S. laiyangensis sp. nov., holotype, ♂. Scales = 2.0 mm.

FIGURES 39‒45. Male genitalia of Stathmopoda spp. 39, S. paraxanthostigma sp. nov., holotype, slide No. GW13061; 40, S. xanthostigma sp. nov., holotype, slide No. GW14153; 41a, S. sphaeroidea sp. nov., paratype, slide No. GW14188; 41b, S. sphaeroidea sp. nov., holotype, slide No. GW15036; 42, S. delitescens sp. nov., paratype, slide No. GW13118, 42a, enlarged gnathos; 43, S. diplaspis, slide No. GW13197; 44, S. laiyangensis sp. nov., holotype, slide No. GW13008; 45, S. paradiplaspis sp. nov., holotype, slide No. GW13159. Scales: 39‒41a, 43‒44 = 0.2 mm, 41b = 0.1 mm, 42, 45 = 0.25 mm, 42a = 0.05 mm.

FIGURES 62‒66. Female genitalia of Stathmopoda spp. 62, S. sphaeroidea sp. nov., paratype, slide No. GW15176; 63, S. delitescens sp. nov., paratype, slide No. GW13119; 64, S. diplaspis, slide No. GW13198; 65, S. paradiplaspis sp. nov., paratype, slide No. GW13160; 66, S. placida, slide No. GW13092. Scales = 0.5 mm.