Prionapteryx indentella
Kearfott, 1908
buffalograss webworm
Prionapteryx indentella is a crambid commonly known as the buffalograss webworm. The is to the Great Plains of North America, with confirmed records from Kansas and Texas. It completes one annually, with activity occurring from August through September. The larval stage is a feeder on Bouteloua dactyloides (buffalograss), the native grass of shortgrass prairie .
Pronunciation
How to pronounce Prionapteryx indentella: /ˌpraɪəˈnæptərɪks ˌɪndɛnˈtɛlə/
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Identification
can be distinguished by their smoky ocherous brown coloration and the combination of Great Plains distribution with late summer period (August–September). Females are noticeably larger and paler than males. The is the only known Prionapteryx in its range with documented larval association to Bouteloua dactyloides.
Images
Appearance
are smoky ocherous brown. Females are larger and lighter in color than males.
Habitat
Shortgrass prairie dominated by buffalograss. The is tightly associated with its plant Bouteloua dactyloides, limiting its distribution to areas where this grass occurs naturally or has been established.
Distribution
to the Great Plains of the United States, specifically recorded from Kansas south to Texas.
Seasonality
are active from August to September. One occurs per year.
Diet
Larvae feed exclusively on Bouteloua dactyloides (buffalograss). feeding habits are not documented.
Host Associations
- Bouteloua dactyloides - larval plant herbivore; derives from this association
Life Cycle
, with one per year. Larval development occurs on buffalograss; and timing aligns with the August–September period.
Ecological Role
As a herbivore on Bouteloua dactyloides, the contributes to nutrient cycling in shortgrass prairie . Larval feeding on buffalograss may influence grass productivity and dynamics, though specific impacts have not been quantified.
Human Relevance
The 'buffalograss webworm' reflects its association with Bouteloua dactyloides, a native grass widely used in low-maintenance lawns and turf applications in the Great Plains and western United States. Potential significance as a pest in buffalograss has not been documented.
Similar Taxa
- Other Prionapteryx species Prionapteryx contains multiple ; P. indentella is distinguished by its Great Plains distribution, late summer period, and specific association with Bouteloua dactyloides.
More Details
Taxonomic history
Described by William D. Kearfott in 1908. The epithet 'indentella' refers to a characteristic indentation in the male genitalia, a feature used in original species .
Conservation status
Not formally assessed. Range-restricted distribution and dependence on native prairie may warrant monitoring given ongoing loss of shortgrass prairie .