Paracroesia Yasuda
Type species: abievora Issiki
The genus is monotypic.
DIAGNOSIS
External characters:
Venation:
venation P. abievora
Forewing: Veins R 4 and R 5.
Hindwing: Veins R and M 1 stalked to middle; veins M 3 and CuA 1 connate.
Forewing shape and markings:
Paracroesia abievora male
Forewing of normal tortricine shape; Paracroesia abievora has ochreous yellow forewings with grey fasciate markings.
Sexual dimorphism:
Markings less conspicuous in females.
Genitalia:
Male:
male genitalia P. abievora
Tegumen delicate; socius drooping, short, rounded, provided with a thin process armed with long bristles; tuba analis broad, membranous except for median belt expanding apically and covered by minute spines; vinculum fairly broad. Valva short, with well-developed costa and strong sacculus provided with distinct spined termination; hairs present in median and posterior portions of disc; brachiola broad, weakly tapering basally; transtilla well sclerotized, arced. Aedeagus with large coecum penis; no cornuti present.
Female:
female genitalia P. abievora
Sterigma developed as a postvaginal plate with lateral arms which are tapering apically; antrum short, well sclerotized; signum in form of deeply concave plate devoid of any spines.
Early stages:
Larva: Head pale yellowish brown; body light green; prothoracic shield and thoracic legs yellowish brown; anal shield and pinacula pale; anal fork developed. Chaetotaxy: seta SD2 present on A1-7.
Biology:
A single generation yearly; young larvae hibernate.
Larvae are recorded from Abies firma, Abies sachalinensis and Tsuga sieboldii.
Distribution:
Russia (Primorsk), Japan and Korea.