Stathmopoda purpurata, Wang & Guan & Wang, 2020

Wang, Ailing, Guan, Wei & Wang, Shuxia, 2020, Genus Stathmopoda Herrich-Schäffer, 1853 (Lepidoptera: Stathmopodidae) from China: Descriptions of thirteen new species, Zootaxa 4838 (3), pp. 358-380 : 370-371

publication ID	https://doi.org/ 10.11646/zootaxa.4838.3.3
publication LSID	lsid:zoobank.org:pub:1905762C-8ECD-4E20-8B18-ECA20044736B
DOI	https://doi.org/10.5281/zenodo.4404537
persistent identifier	https://treatment.plazi.org/id/0395D429-FFBD-FFB3-FF63-F989FED5F92B
treatment provided by	Plazi
scientific name	Stathmopoda purpurata
status	sp. nov.

Treatment

Stathmopoda purpurata sp. nov.

( Figs 12 View FIGURES 9−15 , 25 View FIGURES 22−28 , 37 View FIGURES 34−37 )

Type material. CHINA, Hainan: Holotype ♂, Tianchi, Jianfengling, 11. VI.2010, leg. BB Hu & WC Li, slide No. GW 14035 . Paratypes. 1♂, Tianchi , Jianfengling, 940 m, 6. VI.2007, leg. ZW Zhang & WC Li; 1♀, Mt. Diaoluo , 922 m, 27. V.2015, leg. PX Cong et al.; 1♀, Hongkan, Yinggeling , 540 m, 26. VII.2015, leg. QY Wang et al., slide No. GW15146; Guangxi: 1♂, Mt. Daming , 1250 m, 29. V.2011, leg. LL Yang & YH Mu, slide No. GW12214 .

Diagnosis. The new species differs from other species of the genus in the forewing with a purplish black streak in the distal half along midline; in the male genitalia by the sub-quadrate juxta shallowly concave in U-shape posteromedially; in the female genitalia by the C-shaped signum, and the ductus seminalis inflated elliptically at middle. It is similar to S. stimulata Meyrick, 1913 , but can be distinguished in the male genitalia by the straight apex of the uncus, the ovate cucullus convex before middle on the dorsal margin and the cornutus of the aedeagus with six spines; and in the female genitalia by the corpus bursae with one signum. In S. stimulata , the uncus is pointed at apex, the cucullus is strongly produced at base dorsally and the cornutus of the aedeagus consists of 3–5 spines in the male genitalia; and the corpus bursae has two signa in the female genitalia ( Kasy 1973, P. 286, Figs 84, 86). It is also similar to S. falsistimulata sp. nov., and the differences between the two species are stated in the diagnosis of the latter species.

Description. Adult ( Fig. 12 View FIGURES 9−15 ). Wingspan 13.0–18.0 mm. Head with frons white, vertex and occiput greyish brown. Labial palpus with second segment greyish white on inner side, pale yellow on outer side, with fine dark brown line on outer side, third segment pale brown. Antenna with scape dark brown, greyish white on anterior margin; flagellum yellowish brown. Collar milky, shining purplish brown on posterior margin; thorax yellowish white, tinged with brown, with scattered black scales on anterior half; tegula pale brown. Forewing yellowish white, with longitudinal blackish brown streak along costal margin; purplish black stripe from basal 1/8 of anterior margin of cell extending outward to basal 1/4 of costal margin; ventral margin with a sub-rounded pale ochreous brown spot from between basal 1/10 and 1/5 extending to fold, with a triangular ochreous brown spot from between basal 1/5 and 1/2 reaching basal 1/3 of anterior margin of cell, purplish black above fold and forming a dark spot; purplish black stripe in distal half along midline, straight anteriorly, triangularly produced ventrobasally, inner margin oblique; fringe brown. Hindwing and fringe greyish brown. Legs ochreous brown on dorsal surface, milky on ventral surface; foreleg with femur and tibia dark brown on outer side, tibia annulated with purplish brown at middle and apex, tarsus annulated with purplish brown at apices of first and fifth tarsomeres; mid tibia with ochreous brown bristles at middle and apex, tarsus brown at apices of first and fifth tarsomeres; hind tibia purplish brown and bearing long ochreous brown bristles at basal 1/3 and 2/3 respectively, apex ringed with white and long ochreous brown bristles; first tarsomere of tarsus with a slender dark brown stripe on inner and outer sides respectively, ringed with blackish brown at apex of each tarsomere, with ochreous brown bristles at apices of basal three tarsomeres. Abdomen dark brown on dorsal surface, greyish white on ventral surface.

Male genitalia ( Fig. 25 View FIGURES 22−28 ). Uncus elongate, narrowed from base to apex, with long setae laterally; apex straight, approximately 1/3 width of base. Gnathos wide at base, narrowly toward apex. Tegumen bifurcate from anterior 1/3; lateral arm almost uniform, with a papillary process near base on its inner margin respectively. Valva narrow before cucullus; cucullus ovate, length approximately 1.5 times of maximum width, dorsal margin roundly produced before middle, ventral margin obtuse, apex rounded; inner process slender, curved; costa sub-rounded; sacculus wide, approximately half length of valva, with sparse setae dorsally, narrowly rounded apically. Vinculum narrowly banded; saccus semicircular, approximately 1/4 length of uncus. Juxta sub-quadrate, shallowly concave in U-shape at middle on posterior margin, obtusely rounded on anterior margin; anellar lobes elongate conical, approximately twice length of juxta. Aedeagus approximately 2/3 length of valva, tapered from base to apex, with a sclerite near base; cornutus consisting of six spines joined at base, located at middle ( Fig. 25a View FIGURES 22−28 ).

Female genitalia ( Fig. 37 View FIGURES 34−37 ). Intersegmental membrane between papillae anales and eighth abdominal segment approximately 3 times length of papillae anales. Apophyses posteriores approximately 1.8 times length of apophyses anteriores. Eighth segment straight on posterior margin, with long setae; eighth tergite sub-rectangular; eighth stenite with anterior margin produced triangularly.Antrum sub-quadrate, produced anteromedially, slightly concave on posterior margin. Ductus bursae approximately 3/4 length of corpus bursae, basal 2/3 almost uniform, distal 1/3 gradually widened, with a group of denticles anteriorly. Corpus bursae oval; signum C-shaped, open posteriorly, located near entrance of corpus bursae ( Fig. 37a View FIGURES 34−37 ). Ductus seminalis arising from region of transition between ductus bursae and corpus bursae, elliptically inflated at middle.

Distribution. China (Guangxi, Hainan).

Etymology. The specific epithet is derived from the Latin purpuratus, referring to the purplish black markings of the forewing.