Lecithocera tridentata Wu & Liu, 1993
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publication ID |
https://doi.org/ 10.11646/zootaxa.4996.3.7 |
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publication LSID |
lsid:zoobank.org:pub:BA37E27E-087D-4451-BD43-43123645C301 |
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persistent identifier |
https://treatment.plazi.org/id/083087FE-197B-FFDB-E8D0-E84E316B3402 |
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Plazi |
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scientific name |
Lecithocera tridentata Wu & Liu, 1993 |
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Lecithocera tridentata Wu & Liu, 1993 View in CoL
[Japanese name: Hime-futaten-hosoba-higenaga-kibaga]
( Figs 1h View FIGURE 1 , 2f–g View FIGURE 2 , 3f View FIGURE 3 , 4f View FIGURE 4 , 5d View FIGURE 5 )
Lecithocera tridentata Wu & Liu, 1993: 338 View in CoL ; Wu, 1997: 136.
Type locality: Lu Mountain , Jiangxi Province, China , Type specimen deposited in IZCAS .
Diagnosis. The species is characterized by the following characters: forewing with two discal spots; cucullus of the male valva distally tapered; male 7 th sternite with a pair of crescentic lobes; female signum with 1–3 denticles on the inner surface. The species is similar to L. sigillata Gozmány, 1978 , but differs by the butter-yellow forewing ground color, the broad aedeagus about 1.5 times as wide as medial part, and the numerous denticle-shaped cornuti arranged in slender rows.
Description. Wingspan, 8.2–11.9 mm. Head: butter yellow to pale yellow; vertex covered with greyish beige. Frons greyish yellow to pale yellow. Antenna butter yellow to pale yellow; 1.4 times longer than forewing; scape brown to dark brown ventrally; flagellum randomly covered with brown to dark brown scales. Labial palpus butter yellow to light yellow and randomly covered with pale brown scales on outer surface, pale yellow on inner surface; 3rd palpomere slightly shorter than 2nd, brownish ventrally. Thorax: butter yellow to pale yellow; tegula butter yellow to light yellow, vertex of cephalic side covered with brownish black to brown and with thick suffusion in male, and thin suffusion in female. Legs butter yellow to light yellow and randomly covered with dark brown scales dorsally, dark brown ventrally. Fore-tarsus with light yellow annulations in several tarsomeres. Mid-tibia with spurs dark brown to light yellow dorsally and dark brown ventrally. Hind tibia and tarsus light yellow, slightly covered with dark brown scales ventrally; hind tibia with numerous long and light yellow hairs, and with two pairs of spurs light yellow dorsally and dark brown ventrally. Abdomen: olive brown to greyish yellow dorsally, caudal part with long and yellowish orange tuft in male, light yellow to pale yellow ventrally.
Wings ( Fig. 1h View FIGURE 1 ): Forewing with slightly arched termen; ground color, butter yellow, scattered with dark brown scales, and often densely scattered and becoming denser toward termen, with two discal and brownish black spots present, one at middle and another at end of cell; basal 1/8 of costa with brownish black, with thick suffusion in male and thin suffusion in female; fringe greyish yellow to pale yellow, randomly covered with dark brown scales, light yellow on basal 1/3, forming two color bands along termen. Hindwing greyish beige to greyish yellow, darker toward termen with oblique termen; fringe greyish beige to greyish yellow, light yellow on basal 1/5.
Wing venation ( Fig. 2f–g View FIGURE 2 ). Forewing: Sc ending middle of costa; R1 arising from basal 1/2 of cell; R2 from distal 1/8 of cell; R3 free and from upper angle of cell or R3, R4 and R5 stalked and from basal 1/6 of R4 and R5; R4 and R5 stalked for distal 2/5; R5 to near apex. M1 and M2 parallel; M3 free. CuA1 and CuA2 short-stalked. 1A + 2A forked basally; cell opened. Hindwing: Sc ending at distal 1/3 of costa; Rs running to near apex; Rs and M1 stalked at about distal 1/3. M2 free; M3 and CuA1 coincident. CuA2 from distal 1/4 of cell.
Male genitalia ( Figs 3f View FIGURE 3 , 4f View FIGURE 4 ). Uncus bilobed, with some setae on surface. Median process of gnathos long, beakshaped, five times as long as uncus, slender as wide as uncus, bent subapically; upper side of basal plate of gnathos slightly arched and projected on middle. Valva becoming narrow toward apex, about four times as long as costal bar; costal bar angled medially; sacculus slender, terminating near 1/4 of ventral margin of valva. Juxta shield-shaped, caudal side concaved and with crescent-lobe laterally, medial part of cephalic side moderately pointed. Caudal side of vinculum concaved. as long as valva. Aedeagus about 1/4 times as wide as long; ventral side strongly bent in proximal 1/3; proximal part about 1.5 times as wide as medial part; vesica with cornuti; liner-shaped cornutus with minute denticles in apical part; short and long liner-shaped cornuti in middle; numerous denticle-shaped cornuti arranged in rows clustered before middle. Caudal side of 7 th sternite with a pair of crescentic lobes; cephalic side with a pair of long and slender plates, longer than crescent lobes.
Female genitalia ( Fig. 5d View FIGURE 5 ). Papillae anales 1/3 times as wide as long, with many short and long setae; joint membrane between papillae anales and eighth segment about same length of papillae anales. Ostium bursae opening widely, occupying 1/2 width of eight segment. Antrum somewhat trapezoidal, cup-shaped, broadening toward caudal side, 5/6 times as long as papillae anales, caudal margin with numerous minute denticles on surface. Apophysis anterioris 1/2 times as long as apophysis posterioris. Ductus bursae about 1.4 times as long as apophysis posterioris, weakly sclerotized in arising part of ductus seminalis; ductus seminalis arising from middle of ductus bursae. Corpus bursae ovate, about same length of apophysis anterioris, –5/8 times as wide as long. Signum somewhat oval, with one, two, or three denticles on inner surface, placed on about basal 5/8 of corpus bursae caudally.
Specimens examined. JAPAN, [Honshu]: 1 ♂ 1 ♀, Kami-Dokanbori, Imperial Palace , Tokyo, 15.vii.2003, Y. Arita & U. Jinbo leg. (1 ♂ Gen. sl. no. LEC 11013, 1 ♀ Gen. sl. no. LEC 11006), deposited in NMNS; [Shikoku] :
1 ♂, Higami, Omishima Town, Omishima Island , Ehime Pref., 9.vii.2001, I. Ohshima leg., deposited in HUM 1 ♂ 1 ♀, Matsuyama-Castle area, Matsuyama City, Ehime Pref., 14.viii.2016, J. Oku leg. (1 ♂ Gen. sl. no. Lecithocera No. 13, wing sl. no. Lecithocera No. 13-2, 1 ♀ Gen. sl. no. Lecithocera No. 14) in ELKU ; [ Kyushu ] : 1 ♀, Kamisushima, Ushibuka City , Kumamoto Pref., 29.vi.2001, I. Ohshima leg., deposited in HUM ; 1 ♀, Mt. Shibi, Satsuma Town, Kagoshima Pref., 11.viii.2016, Y. Kitajima leg. (1 ♀ Gen. sl. no. Lecithocera No. 61) in ELKU ; 2 ♀, Take, Kagoshima City, Kagoshima Pref., 29.vi.2017, J. Oku leg. (2 ♀ Gen. sl. no. Lecithocera No. 28 and 30, wing sl. no. Lecithocera No. 28-2) in ELKU ; 1 ♂, same locality, 14.vii.2017, J. Oku leg. in ELKU ; 1 ♂, Toso, Kagoshima City, Kagoshima Pref., 8.vi.2010, T. Terada leg. (1♂ Gen. sl. no. Lecithocera No. 82, wing sl. no. Lecithocera No. 82-2), deposited in KGU ; 1 ♂ 1 ♀, Jigenji-Park area, Kagoshima City, Kagoshima Pref., 21.vii.2017, J. Oku leg. (1 ♂ Gen. sl. no. Lecithocera No. 31) in ELKU ; 1 ♀, Taka-Toge, Tarumizu City , Kagoshima Pref., 11.x.2017, J. Oku leg. in ELKU ; 1 ♀, Futamatagawa-Camp area, Kimotsuki Town, Kimotsuki Gun , Kagoshima Pref., 19.viii.2017, J. Oku leg. (1 ♀ Gen. sl. no. Lecithocera No. 43, wing sl. no. Lecithocera No. 43-2) in ELKU ; 3 ♂ 5 ♀, Mt. Koba- dake, Minami-Osumi Town, Kagoshima Pref., 8.viii.2018, J. Oku leg. (1 ♂ Gen. sl. no. Lecithocera No. 81, wing sl. no. Lecithocera No. 81-2; 3 ♀ Gen. sl. no. Lecithocera No. 80, 89 and 90, wing sl. no. Lecithocera No. 80-2) in ELKU .
Distribution. Japan: Honshu, Shikoku, Kyushu; China.
Biology. Adults fly in early and mid- summer and mid-fall.
Remarks. In the female genitalia, the number of denticles on the signum varies from one to three. This variation is mirrored in wing venation. Females with one or three denticles have forewing vein R3 stalked with veins R4 and R5 ( Fig. 2g View FIGURE 2 ), whereas females with two denticles have the vein R3 free arising from same point of veins R4 and R5 ( Fig. 2f View FIGURE 2 ). Study of more material will be required to test whether this variation is indicative of distinct species. Sakamaki (2013) misidentified this species as Sarisophora cerussata (Wu, 1994) .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Lecithocera tridentata Wu & Liu, 1993
| Oku, Johei, Sakamaki, Yositaka & Hirowatari, Toshiya 2021 |
Lecithocera tridentata
| Wu, C. 1997: 136 |
| Wu, C. & Liu, Y. 1993: 338 |