Homonopsis foederatana

Author: (Kennel, 1901)

Species Overview:

Adult: males 16-19 mm wingspan, females 20-23 mm wingspan; forewings yellowish brown with brown markings; costal fold absent. Hindwings greyish brown. Veins R4 and R5 in forewing stalked.
Larva: average length of full-grown larva 18 mm. Head pale yellowish ochreous, with dark pigment in region of stemmata and at postgenal juncture; body green; prothoracic shield yellowish ochreous bordered posteriorly with brown; thoracic legs black; pinacula pale, socket of setae black; anal shield pale yellowish ochreous.
Pupa: ca. 11 mm; blackish brown, ventral part seldom green; caudal part of most abdominal segments conspicuously granulate or echinate; metanotum with a prominent carina on the meson; a crescentic depression present on the cephalic margin of dorsal surface on abdominal segments 2-7
[details pupa H. foederatana ].

Taxonomic Description:


Homonopsis foederatana male 1
Homonopsis foederatana male 2
External characters: 16-19 mm wingspan. Labial palpus, head and thorax yellowish brown. Forewing without costal fold, slightly expanding posteriorly; costa bent throughout; apex pointed; termen convex or slightly sinuate. Ground colour yellowish brown; markings brownish. Basal blotch from one-third of dorsum; median fascia extending from one-third of costa to middle of dorsum, slightly expanding there; subapical blotch triangular or rectangular; terminal marking elongate, occupying median portion of termen; tornal marking ill-defined. Cilia pale yellow-brown. Hindwing greyish brown, cilia paler (Yasuda, 1975b).

male genitalia H. foederatana
Genitalia: Tegumen broad; uncus very broad, bilobed, provided with large brush consisting of long scales; gnathos weakly sclerotized, slender, with well developed terminal part; socii weak, membranous. Valva with elongate, densely spined distal part and dorsal convexity; sacculus to end of ventral edge of valva, terminating in a hook; transtilla very broad, fusing with disc sclerite, almost vertical. Aedeagus slender, long, pointed apically; no cornuti present.


Homonopsis foederatana female 1
Homonopsis foederatana female 2
External characters: 20-23 mm wingspan; forewing apex pointed; termen delicately sinuate above, distinctly convex beneath.

female genitalia H. foederatana
detail fem. gen. H. foederatana
Genitalia: Sterigma with strong concave lateral lobes and small, rounded antevaginal portion, which is fused with antrum; antrum somewhat bent, long, well sclerotized; ductus bursae long; corpus bursae ovate; signum elongate.


Moths collected in Japan in May and June.
Hibernation in larval stage.

Host plants:

Malus pumila, Abies firma, Abies sachalinensis, Picea alba, Taxus cuspidata, Salix sp.


The species is not very important economically.


Russia: Primorsk, Priamure, Ussuri Territory; China; Japan: Hokkaido, Honshu; Korea.


Pheromone unknown.


Z 11-14Ac : 1
E 11-14Ac : 1
(Ando et al., 1981)

Homonopsis rubens Kuznetsov

male genitalia H. rubens
female genitalia H. rubens
Homonopsis rubens Kuznetsov, a species collected from Abies hollophyla, Alnus hirsuta and Manispermum dauricum, occurs in S. Primorsk (Russia) and Korea. Judging by the drawings of male genitalia made by Kuznetsov, 1976, the sacculus has a small free termination (smaller than in Homonopsis foederatana), and the transtilla is very narrow at both lateral ends.