Scythropiodes Matsumura, 1931

Wang, Qingyun & Li, Houhun, 2016, Review of the genus Scythropiodes Matsumura, 1931 (Lepidoptera, Lecithoceridae, Oditinae) from China, with a checklist of the world, Zootaxa 4132 (3), pp. 301-329 : 302-306

Scythropiodes Matsumura, 1931

Scythropiodes Matsumura, 1931: 1099 . Type species: Scythropiodes seriatopunctata Matsumura, 1931 = Protobathra leucostola Meyrick, 1921 .

Generic characters. Adult ( Figs 1–2 ). Head with appressed scales on frons, with raised scales on vertex ( Fig. 1 a); compound eye developed, almost as wide as frons ( Fig. 1 b). Antenna ( Fig. 1 c) filiform, with short cilia ventrally in males of some species, about three-fourths length of forewing. Labial palpus upturned, third palpomere as long as or slightly shorter than second, acute terminally ( Fig. 1 d). Thorax with tergum slightly raised. Forewing ( Fig. 2 ) subrectangular, R4 and R5 stalked basally, R5 to termen, M1 parallel with M2, M2 and M3 proximate at base, basal fork 1/3–1/2 length of 1A+2A. Hindwing ( Fig. 2 ) subtrapezoidal, Rs and M1 stalked basally, M2 parallel with M3, M3 connate or coincident with CuA1 basally.

Male genitalia ( Fig. 3 a). Tegumen subrectangular. Uncus absent. Gnathos hooked. Valva variable in shape. Transtilla and juxta often with lateral lobes.

Female genitalia ( Fig. 3 b). Papillae anales elongate rectangular. Apophysis posteriores about two to three times length of apophysis anteriores. Ostium bursae situated between seventh and eighth sterna. Corpus bursae membranous; signum usually present.

Diagnosis. Scythropiodes is similar to Odites , but can be separated from it by the well-developed, hooked gnathos in the male genitalia. In Odites , the gnathos is reduced or absent.

Figures

FIGURE 1. Head structures of Scythropiodes barbellatus Park et Wu. a, Head with scales from lateral view; b, Head with scales removed; c, antenna; d, labial palpus. (Slide No. NKWQY 004; scale bars = 1.0 mm).

FIGURE 2. Wing venations of Scythropiodes spp. a, S. barbellatus Park et Wu, ♂, slide No. WQY 14184; b, S. approximans (Caradja), ♂, slide No. WQY 15030.

FIGURE 3. Genitalia of Scythropiodes barbellatus Park et Wu. a, male, genitalia slide No. WQY 14153; b, female, genitalia slide No. WQY 15006. (Scale bars: a = 0.5; b = 1.0 mm).