Gracillariidae | |
---|---|
Privet leaf miner, Gracillaria syringella (Fabricius, 1794) | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Lepidoptera |
Superfamily: | Gracillarioidea |
Family: | Gracillariidae Stainton, 1854 |
Subfamilies | |
Genera - see "Subfamilies and genera" | |
Diversity [1] | |
About 101 genera and 1,866 species |
Gracillariidae is an important family of insects in the order Lepidoptera and the principal family of leaf miners that includes several economic, horticultural or recently invasive pest species such as the horse-chestnut leaf miner, Cameraria ohridella.
There are 98 described genera of Gracillariidae (see below). A complete checklist is available of all currently recognised species. [2] There are many undescribed species in the tropics but there is also an online catalogue of Afrotropical described species ; the South African fauna is quite well known. Although Japanese and Russian authors have recognised additional subfamilies, [2] there are three currently recognised subfamilies, Phyllocnistinae of which is likely to be basal. In this subfamily, the primitive genus Prophyllocnistis from Chile feeds on the plant genus Drimys (Winteraceae), and has leaf mines structurally similar in structure to fossils (see "Fossils"). [3] While there have been some recent DNA sequence-based studies of Palaearctic species [4] [5] there is need for a satisfactory modern global phylogenetic framework for the subfamilies of Gracillariidae. Some genera are very large, e.g. Acrocercops, Caloptilia, Cameraria, Epicephala and Phyllonorycter.
Gracillariidae occur in all terrestrial regions of the World except Antarctica.
These generally small (wingspan 5–20 mm) moths are leaf miners as caterpillars, [6] which can provide a useful means of identification, especially if the hostplant is known. The subfamilies differ by the adult moth resting posture (Davis and Robinson, 1999). Most Gracillariinae rest with the front of the body steeply raised; Lithocolletinae and Phyllocnistinae rest with the body parallel to the surface; in Lithocolletinae often with the head lowered.
The first to fifth-instar larvae are flattened and possess specialised mouthparts adapted for feeding on sap. Older-instar larvae are cylindrical and have normal chewing mouthparts for feeding on plant tissue within the leaf mines, and have a fully functional silk-producing organ, the "spinneret". Some genera have an intermediate stage in this remarkable hypermetamorphosis (Davis and Robinson, 1999).
Many host plants are known, generally dicotyledonous trees or shrubs. [7] Patterns of hostplant shifting have been inferred for many United Kingdom species in the genus Phyllonorycter and its sister genus Cameraria. [5] A recent DNA sequencing study mainly of Palaearctic species has shown that the burst of evolutionary adaptive radiation occurred long after that of the larval hostplants, rather than demonstrating a tight coevolutionary process. [4]
The family is an old one, with fossil Phyllocnistinae mines known from 97-million-year-old rocks in Kansas and Nebraska. [8] There are other fossil mines known from rocks of Eocene and Miocene age. [2] There are also two adult moths known from Lithuanian or Baltic amber of Eocene age: Gracillariites lithuanicus Kozlov, 1987 and G. mixtus Kozlov, 1987. [2]
Phylogeny of Gracillariidae |
from Li et al. 2022 |
Gracillariidae phylogeny has been revised in 2017 and is now containing eight subfamilies: [9]
Unplaced species
Neolithocolletis pentadesma is a moth of the family Gracillariidae. It is known from Indonesia (Java), Malaysia, the Philippines (Luzon) and the Seychelles.
Phyllonorycter lucidicostella, lesser maple leaf blotch miner, is a moth of the family Gracillariidae. It is known from Ontario and Québec in Canada and Alabama, Connecticut, Illinois, Kentucky, Pennsylvania, Maine, Michigan, New York, Vermont and North Carolina in the United States.
Phyllonorycter obscuricostella is a moth of the family Gracillariidae. It is known from Connecticut, Illinois, Kentucky, Pennsylvania, Maine and New York in the United States.
Phyllonorycter ostryaefoliella is a moth of the family Gracillariidae. It is known from Canada and the United States.
Phyllonorycter argentinotella is a moth of the family Gracillariidae. It is known from Québec in Canada and Illinois, Kentucky, Pennsylvania, New York, Vermont, Connecticut and Massachusetts in the United States.
Phyllonorycter tritaenianella is a moth of the family Gracillariidae. It is known from Québec in Canada and Illinois, Kentucky, Maine, Michigan, New York, Connecticut and Massachusetts in the United States.
Cameraria affinis is a moth of the family Gracillariidae. It is known from Quebec, Canada, and the United States.
Phyllonorycter mariaeella is a moth of the family Gracillariidae. It is known from Canada and the United States.
Phyllonorycter tiliacella is a moth of the family Gracillariidae. It is known from Canada and the United States.
Cameraria saccharella is a moth of the family Gracillariidae. It is known from Ontario and Quebec in Canada, and Illinois, New Jersey, Ohio, Maine, New York, Connecticut and Vermont in the United States.
Cameraria cincinnatiella is a moth of the family Gracillariidae. It is known from Ontario and Quebec in Canada, and the United States.
Cameraria conglomeratella is a moth of the family Gracillariidae. It is known from Illinois, Kentucky, Texas, California, Florida, Georgia, Maryland, New Jersey, Ohio and Virginia in the United States.
Cameraria platanoidiella is a moth of the family Gracillariidae. It is known from Connecticut, New York and Ohio in the United States.
Cameraria guttifinitella is a moth of the family Gracillariidae. It is widespread in North America.
Cameraria aesculisella is a moth of the family Gracillariidae. It is known from the United States.
Cameraria hamameliella is a moth of the family Gracillariidae. It is known from Ontario, Québec, and Nova Scotia in Canada and throughout the eastern United States.
Lithocolletinae is a subfamily of insects in the moth family Gracillariidae. It is distributed worldwide, with most species in temperate regions.
Phyllonorycter trochetellus is a moth of the family Gracillariidae. It is found in Mauritius.
Gracillariinae are a subfamily of moths which was described by Henry Tibbats Stainton in 1854.
Phyllocnistinae is a subfamily of insects in the moth family Gracillariidae.