Lithocolletinae

Lithocolletinae is a subfamily of insects in the moth family Gracillariidae. It is distributed worldwide, with most species in temperate regions.[1]

Lithocolletinae
Phyllonorycter issikii
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Gracillariidae
Subfamily:
Lithocolletinae

Stainton, 1854
Genera

11

Leaf mine on hickory made by Cameraria caryaefoliella

Diversity and distribution

As of 2012, the subfamily contains over 540 species divided into ten genera.[2] About half are native to the Palearctic realm, and over 100 occur in the Nearctic realm.[1] About 66 species occur in the Afrotropical realm, 41 of which were described in the year 2012.[2]

Description

Moths of the subfamily are small, with wingspans under 10 millimeters. They are often colorful, with forewings in shades of orange or red-brown with white or silvery streaks,[1] and a metallic, shiny ground color.[2] Another trait sometimes used to distinguish species is the style of frass distribution. Species may leave their frass scattered about, deposited neatly along leaf veins or gathered at the feeding area, knit into a pile with silk threads, or spun into the cocoon.[2]

Biology

These moths are associated with at least 870 species of host plants in 36 botanical families.[2] Many feed on plants of the legume family, Fabaceae, and five genera are limited to them.[1] Many species are monophagic, known from only one host plant.[2] The larvae of most species are found on legumes, as well as the beech family (Fagaceae), the birch family (Betulaceae), the rose family (Rosaceae), and the willow family (Salicaceae).[2]

Most larvae are leaf miners, which feed on leaves and produce distorting tissue damage. Most larvae suck sap during their first three instars, and consume the leaves during their final two instar stages.[2] Familiar pests in the subfamily include Cameraria ohridella, which feeds on horse chestnut (Aesculus hippocastanum), Phyllonorycter blancardella, which feeds on apples (Malus spp.), Cremastobombycia lantanella, which attacks lantana (Lantana camara).[2] Some larvae produce galls on plants.[2]

Genera

There are ten genera. The largest, Phyllonorycter, contains around 400 species, while the smallest, Protolithocolletis, has only one species.[2] Phyllonorycter contains many species of unclear phylogenetic origins and uncertain taxonomic classification. The definitions of the genera are not yet fully developed. Molecular analysis is ongoing. Collection of specimens is continuing, and new genera are being observed and will be described in the future.[2]

Genera:[2]

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References
  1. Davis, D. R. and J. De Prins. (2011). Systematics and biology of the new genus Macrosaccus with descriptions of two new species (Lepidoptera, Gracillariidae). ZooKeys (98), 29-82.
  2. De Prins, J. and A. Y. Kawahara. (2012). Systematics, revisionary taxonomy, and biodiversity of Afrotropical Lithocolletinae (Lepidoptera: Gracillariidae). Zootaxa 3594: 1–283.
  3. Kawahara, A. Y.; Plotkin, D.; Ohshima, I.; Lopez-Vaamonde, C.; Houlihan, P. R.; Breinholt, J. W.; Davis, D. R.; Kumata, T.; Sohn, J.-C.; De Prins, J.; Mitter, C. (2017). "A molecular phylogeny and revised higher-level classification for the leaf-mining moth family Gracillariidae and its implications for larval host-use evolution". Systematic Entomology. 42: 60–81. doi:10.1111/syen.12210.
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