Pamphilius ocreatus
Pamphilius ocreatus is a of in the Pamphiliidae. It was newly recorded in Arkansas during a 2016 survey, representing a range extension from its previously known distribution. The species belongs to the suborder Symphyta, a group of -feeding characterized by a broad connection between the and . Like other pamphiliids, are likely associated with conifers and construct silken webs for feeding.
Pronunciation
How to pronounce Pamphilius ocreatus: /pæmˈfɪliəs oʊˈkriːətəs/
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Identification
As a member of Pamphiliidae, this can be distinguished from other by the presence of a distinct fore and reduced compared to other Symphyta. Identification to species level requires examination of morphological characters by a ; specimens from Arkansas were identified by sawfly expert Dr. David Smith.
Distribution
Documented in Arkansas as a new state record in 2016; previously known from other regions of eastern North America. The Arkansas record represents a range extension of hundreds of miles from prior documented occurrences.
Behavior
of Pamphiliidae are known to spin silken webs on plants for protection while feeding; this is presumed for P. ocreatus based on -level characteristics.
Human Relevance
Like most , this is harmless to people and has no documented economic importance as a pest of or ornamental plants.
Similar Taxa
- Other PamphiliidaeShare the web-spinning larval habit and reduced ; require examination for -level separation
- Other Symphyta families (e.g., Tenthredinidae)Differ in (Pamphiliidae have a distinct fore ) and larval habits (most do not construct silken webs)
More Details
Discovery context
This was among 30 species newly recorded in Arkansas during PhD research by Dr. Michael Skvarla at the University of Arkansas, published in Data Journal. Specimens were collected using and hanging funnel traps.