Psilocorsis fatula
Hodges, 1975
Psilocorsis fatula is a in the Depressariidae, described by Ronald W. Hodges in 1975. It belongs to a whose larvae are known as leaf-tiers, constructing shelters by binding together leaves of plants. The species has been recorded only from Texas, indicating a restricted distribution within North America. Very little specific information is available about this particular species beyond its taxonomic description and type locality.
Pronunciation
How to pronounce Psilocorsis fatula: /ˈsaɪloʊˌkɔːrsɪs ˈfætjʊlə/
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Identification
Members of the Psilocorsis are small with larvae that create distinctive leaf-tier shelters by fastening together two or more leaves with silk, forming a flattened sandwich-like structure. are typically small and inconspicuous. Specific diagnostic features for P. fatula are not documented in available sources.
Images
Habitat
Based on the , likely associated with oak or other hardwood forests where leaf-tier caterpillars can construct their shelters between bound leaves.
Distribution
Known only from Texas, United States. No additional records have been documented.
Diet
Larvae in the Psilocorsis feed on leaves of plants, including oak (Quercus). Specific host plants for P. fatula have not been recorded.
Host Associations
- Quercus - food plant-level association based on known Psilocorsis ; specific for P. fatula unconfirmed
Behavior
Larvae are leaf-tiers, binding together multiple leaves to create a sheltered feeding chamber. This differs from leaf-rollers, which typically roll single leaves.
Ecological Role
Herbivore; leaf-tier caterpillars modify leaf structure on plants. They serve as prey for various and predatory insects.
Similar Taxa
- Psilocorsis sp. (other species)Other in the share the leaf-tier habit and similar ; identification to species level requires examination of genitalia or other subtle characters
- Leaf-rolling caterpillars (various families)Leaf-tiers bind multiple leaves together rather than rolling single leaves; different shelter architecture distinguishes them
More Details
Taxonomic Note
The placement of Psilocorsis has been revised over time; it is currently placed in Depressariidae but has been associated with Amphisbatidae or Oecophoridae in older literature. The Psilocorsis contains multiple of leaf-tier , but P. fatula appears to be among the least documented.
Research Gap
This exemplifies the many Lepidoptera known only from and original descriptions. No observations, images, or biological studies have been published since its description in 1975.