Crocidosema plebejana
Crocidosema plebejana, the cotton tipworm, is a tortrix moth (family Tortricidae), belonging to tribe Eucosmini of subfamily Olethreutinae. It is found today all over the subtropical and tropical regions of the world and even occurs on many oceanic islands – in Polynesia and Saint Helena for example – but has probably been accidentally introduced to much of its current range by humans. In addition, it is also found in some cooler regions, e.g. in Europe except in the east and north; this is probably also not natural, as it was, for example, not recorded in the British Isles before 1900 . It is the type species of its genus "Crocidosema", established by Philipp Christoph Zeller when he described the present species in 1847, as he found it unlike any moth then known to science. Description and ecology. The wingspan of adults is 12–16 mm. Males are dark brown to black with a white ocellus and dorsal patch. Females are pale brown to tan with a dark basal patch that does not extend to the costa. Julius von Kennel provides a full description. In the seasonal parts of its range, this moth flies from midsummer to early autumn, e.g. from July to  October in southern England. It is not quite clear whether there are several broods per year in the tropics, as it has been recorded on the Marquesas Islands only between January and April for example. The adults are active in the evening and are attracted to lights. The larvae mainly feed inside the seed capsules and shoots of Malvaceae such as China jute ("Abutilon theophrasti"), marsh mallow ("Althaea officinalis"), the tree mallow ("Lavatera arborea"), arrowleaf sida ("Sida rhombifolia"), and various "Gossypium" (cottons) and "Malva" (typical mallows) species. The caterpillars have been found on other eurosids, including "Crataegus" hawthorns (Rosaceae), "Cucurbita  pepo" pumpkins (Cucurbitaceae), and "Eucalyptus" (Myrtaceae). They may occasionally become pests of cotton. Synonyms. This species was described time and again under different names from all over its wide range. But not even subspecies are accepted today, rendering all those other names invalid. In addition, it was variously assigned to other tortrix moth genera – usually close relatives of "Crocidosema" such as "Epinotia" (under its junior synonyms "Paedisca", "Proteopteryx" and "Steganoptycha") or "Eucosma", but sometimes more distantly related Olethreutinae such as "Grapholita" (under the spelling variant "Grapholitha") and "Hedya" (as "Penthina", a misspelling of the junior synonym "Pendina"). In addition to  being the type species of "Crocidosema", one of these redescriptions – at that time still unrecognized as what it was – was used as late as 1965 to establish the genus "Parasuleima" as supposedly distinct from "Crocidosema". The invalid scientific names of this moth are: