Tortrix sinapina

Author: (Butler, 1879)

Japanese oak leafroller

Species Overview:

Adult: 22-24 mm wingspan; forewing ground colour pale yellow, creamier posteriorly, finely strigulated with ochreous-yellow and with two brownish oblique fasciae. Hindwing pale greyish brown; cilia paler.
Larva: average length 16 mm; head, thoracic legs, prothoracic shield, anal shield and pinacula blackish brown; body greyish green. Anal fork developed [Tortrix sinapina larva].

Taxonomic Description:


Tortrix sinapina adult 1
Tortrix sinapina adult 2
External characters: 22-24 mm wingspan; labial palp ochreous-yellow, head paler, thorax pale yellow, marked by pale brownish submedian transverse line. Forewing slightly expanding posteriorly; costa bent throughout, apex pointed; termen slightly oblique. Ground colour pale yellow, creamier posteriorly, finely strigulated with ochreous-yellow. Markings brownish, consisting of two parallel oblique fasciae, the first from 1/3 of costa to middle of dorsum, the second from beyond mid-costa to tornus. Cilia paler than ground colour. Hindwing pale greyish brown; cilia paler (Yasuda, 1975b).

male genitalia Tortrix sinapina
Genitalia: Tegumen small; socii large, tapering terminally, with bases large anteriorly, hairs long; tuba analis weak; transtilla a slender band. Valva large, elongate, with well-developed brachiola. Sacculus as long as the ventral edge of valva, bent ventro-terminally; termination of sacculus short, spined. Aedeagus short, proportionally broad, with short cornuti in vesica.


External characters: similar to male.

female genitalia T. sinapina
Genitalia: Papillae analis very broad, rounded posteriorly, with short but strong hairs in median portions and very short, rounded apically, anterior parts; sterigma very broad, short, rounded anteriorly; antrum broad, short; ductus bursae long, narrowing medially; corpus bursae small; signum broader than in Tortrix viridana.


Occasionally dark specimens with ochreous-brown suffusion in the forewing occur.


Moths occur from the end of May until mid July.

Host plants:

Quercus mongolica, Quercus dentata, Quercus variabilis, Quercus serrata, Sorbus alnifolia, Tilia japonica, Lespedeza bicolor.


Larvae feed on leaves of oak. The species is sometimes abundant and therefore potentially economically important.


Eastern Russia, Eastern China, Japan, Korea.


Pheromone unknown.


Z 11-14Ac
(Ando et al., 1978)