Ochropacha

Ochropacha is a monotypic moth genus in the family Drepanidae. The genus was first described by Hans Daniel Johan Wallengren in 1871. Its single species, Ochropacha duplaris, the common lutestring, was first described by Carl Linnaeus in 1761.^[1] It is found in China (Jilin), Russia, Japan, the Korean Peninsula and from Central Asia to Europe.^[2]

For a key to the terms used, see Glossary of entomology terms.

Ochropacha duplaris
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Drepanidae
Subfamily:	Thyatirinae
Genus:	Ochropacha Wallengren, 1871
Species:	O. duplaris
Binomial name
Ochropacha duplaris (Linnaeus, 1761)
Synonyms
Phalaena duplaris Linnaeus, 1761 Noctua ruficollis Brahm, 1791 Noctua bicolor Esper, 1791 Noctua bipuncta Borkhausen, 1792 Bombyx binotata Fabricius, 1793 Noctua undosa Hübner, 1804 Palimpsestis duplaris subalpina Hartig, 1938 Palimpsestis dupalris kamschadalis Sheljuzhko, 1926 Palimpsestis duplaris kamtschadalis Sheljuzhko, 1926

The wingspan is 27–32 mm. It is similar to Tetheella fluctuosa but the forewings with the whitish lines usually less distinct, the central band usually dark-striated towards edges, two black discal dots transversely placed, no praesubterminal dash and a dark fuscous oblique apical dash. The larva is pale dull greenish, deeper dorsally; dorsal line darker; subdorsal broad, dull olive-green; lateral line, yellowish; dots black; head reddish.^[3]

Fig 3 larvae after final moult

The moth flies from June to August depending on the location.

The larvae feed on birch.