Endotricha convexa Li

Sun, Yongling & Li, Houhun, 2012, Five new species and three new females of the genus Endotricha Zeller from China (Lepidoptera, Pyralidae, Pyralinae), ZooKeys 214, pp. 29-42 : 35-36

Endotricha convexa Li sp. n. Figs 41217

Type material.

Holotype ♂ - China, Hainan Province: Yinggeling (19°02'N, 109°50'E), 620 m, 23.V.2010, coll. Bingbing Hu and Jing Zhang, genitalia slide no. SYL11043. Paratypes: 1 ♂, same data as for holotype; 2 ♂, Mt. Wuzhi, 740 m, 14.IV.2009, coll. Qing Jin and Bingbing Hu; 1 ♀, Yinggeling, 30.IX.2010, coll. Bingbing Hu.

Diagnosis.

This species is similar to Endotricha lobibasalis Hampson, 1906. It can be distinguished by the forewing in male having a hump from costal 1/5 to 2/5; in the male genitalia by the conspicuous gnathos, the ventroapically right-angled valva, and the oval juxta being deeply concave to mid length on posterior margin. In Endotricha lobibasalis , the basal 1/3 of the forewing has a gentle hump; the gnathos is inconspicuous, the valva is bluntly angled ventroapically, and the nearly trapezoidal juxta is not concave.

Description.

Adult (Fig. 4): Wing expanse 20.0−22.0 mm. Head reddish brown. Antenna yellowish brown, flagellum with blackish brown dorsal annuli. Labial palpus with basal segment reddish brown, second and third segments blackish brown except second segment pale yellow at apex. Thorax and tegula greyish yellow. Forewing purplish red in male, covered with dense black scales on basal 1/3, scattered with black scales on distal 2/3; costal margin with prominent hump extending from 1/5 to about 2/5, then gently concave to before apex, basal 1/3 orange yellow, interrupted with black dots, distal 3/5 black, with yellow spots; large inverted triangular orange yellow patch placed between middle of costal margin and before subterminal line extending downward, its inner margin obliquely extending to middle of subterminal line, outer margin straight, just adjacent to subterminal line; antemedian line yellowish white, slightly arched outward, not reaching anterior margin; discal spot a short strip, black; subterminal line whitish yellow, thin, curved, edged with black on outer margin; terminal line black; fringe purplish red, tinged with black. Hindwing concolorous to forewing except anteriorly whitish yellow from base to distal 1/5; antemedian line whitish yellow, edged with black on inner margin; postmedian line whitish yellow, both margins edged with black, between two lines pale yellow mixed with dense reddish brown scales; terminal line black; fringe purplish red, with blackish brown dots along basal half, pale yellow along dorsal margin. Legs greyish white dorsally, greyish black ventrally, mid tibia with purplish red scales.

Forewing in female greyish yellow from base to antemedian line, from antemedian line to subterminal line yellow with dense reddish brown scales, from subterminal line to apex purplish red; costal margin straight, interrupted with short blackish brown and yellow streaks. Other characters as in male.

Male genitalia (Fig. 12). Uncus broad at base, slightly narrowing to 3/4, then broadened to blunt apex; uncus arm broad earlike, extending outwards; uncus processes more or less narrow triangular, set at distal 1/4. Gnathos somewhat racket-shaped, rounded at apex; arm extremely narrow-banded. Valva nearly rectangular, truncate apically, right-angled ventroapically; costa protruding at about distal 1/3, bearing three long reflexed hairs; transtilla broad, uniformly narrow-band. Sacculus wide basally, tapering to a long rod-shaped distal process, apex slightly exceeding middle of valva. Vinculum broad; saccus short and broad, with rounded anterior margin. Juxta more or less oval; posterior margin concave to half length at middle, forming two thumb-shaped lateral lobes. Phallus relatively stout, about same length as sacculus; cornutus conspicuous, about 1/2 length of phallus, toothed; ductus ejaculation from basal 1/3.

Female genitalia (Fig. 17). Ovipositor nearly triangular, narrowly rounded caudally. Apophysis posterioris long and slender, about 2.3 times length of apophysis anterioris. Antrum weakly sclerotized, funnel-shaped; bursal ring heavily sclerotized, shorter than half length of antrum; ductus bursae membranous, extremely short. Corpus burase elongate rectangular, length about 3.5 times of width; signum small and rounded, placed medially.

Distribution

(Map 1). China (Hainan).

Etymology.

The specific epithet is derived from the Latin convexus, meaning convex, referring to the forewing hump from costal 1/5 to 2/5.