Author: (Duponchel, 1835)
Hawthorn berry moth
Species Overview:
Adult: 9-11 mm wingspan; forewing relatively broad, general colouration pinkish or purplish ochreous, with an admixture of ochreous-yellow along terminal margin; wing extensively mixed and striated with dark brown. Hindwing fuscous, paler basally; in males blackish scales and hair-like cilia are present in the tornal area of the hindwing.
Egg: 0.8 x 0.7 mm, translucent.
Larva: 12 mm long; head light brown, darker posteriorly, region of stemmata blackish; prothoracic plate weakly sclerotized, pale brown; abdomen yellowish white, segments tinged with pink around middle; pinacula concolorous with integument, inconspicuous; anal plate light brown, marked with small blackish spots.
Pupa: Wings amber-brown, rather translucent, abdomen reddish yellow; in a silken cocoon under loose bark, in rotten wood or amongst leaf litter on the ground.
Taxonomic Description:
Male:
G. janthinana adult 1
G. janthinana adult 2
External characters: 9-11 mm wingspan; forewing ground colour white to yellowish white, suffused with pinkish or purplish ochreous, extensively mixed and striated with dark brown, an admixture of ochreous-yellow along terminal margin, usually five small obscure interspaces between blackish brown costal strigulae in apical half, only the apical interspace moderately distinct and linear, the postmedian interspace producing a moderately long plumbeous stria edged above by an oblique black line which extends nearly to termen and is parallel with a plumbeous pre-apical stria; fasciate markings dark brown or blackish brown, obsolescent; basal and sub-basal fasciae indicated by an outward-oblique streak from costa to near middle and by a dark suffusion dorsally; a quadrate medio-dorsal blotch of ground colour usually marked with three slightly outward-oblique, more or less parallel striae, the middle one dark brown, the two outer striae plumbeous; ocellus poorly developed, containing three or four black dashes situated close to termen, obscurely edged with plumbeous laterally; cilia grey, with a dark brown sub-basal line, most distinct around apex, interrupted subapically. Hindwing fuscous, paler basally, some blackish scales at tornus; cilia light fuscous, those at tornus much finer and hair-like (Bradley et al., 1979).
male genitalia G. janthinana
Genitalia: Ventral margin of valva with lobe before cucullus; cucullus broad and very short.
Female:
External characters: Similar to male but hindwing lacking the blackish scales and hair-like cilia in the tornal area of the hindwing.
female gen. G. janthinana
Genitalia: Sterigma a closed ring encircling ostium, with flat triangular lateral processes. Ductus bursae with very small sclerite near inception of ductus seminalis.
Biology:
The main host plant is of Grapholita janthinana is Crataegus. Eggs are deposited on the berries. The larva feeds on the berries, eating the pericarp. Two or three ripe berries are spun together with only slight trace of silk, sometimes with a little frass adhering, indicate the presence of a larva. When fully fed in the autumn the larva leaves the berries and spins a cocoon in which it overwinters, pupating in the following spring. Moths fly in June, July and August.
Host plants:
Crataegus. Rarely on Mespilus germanica and Sorbus.
In the past, the species has been confused with Grapholita lobarzewskii, a pest of apple and plum. Records from apple therefore probably concern Grapholita lobarzewskii, although Kalman et al., 1994, mention the presence of both species in apple orchards in Hungary.
Damage:
Larvae feed on the berries of Crataegus. In the past, the species has been confused with Grapholita lobarzewskii, a pest of apple and plum.
Distribution:
Europe to Asia Minor and Eastern Russia.
Pheromone:
Pheromone unknown.
Attractantia:
Z 8-12Ac : 72
E 8-12Ac : 28
(Beauvais et al., 1977)
or
Z 8-12Ac : 79
E 8-12Ac : 21
(Biwer and Descoins, 1978)