Arthroceras pollinosum
Williston, 1886
Arthroceras pollinosum is a of snipe fly in the Rhagionidae, first described by Samuel Wendell Williston in 1886. It belongs to the Arthrocerinae, a group characterized by distinctive antennal modifications. The species is known from very few observations, with only five records documented on iNaturalist as of the available data. Its specific epithet 'pollinosum' likely refers to a pollinose (dusty or pollen-covered) appearance, a common trait in this .
Pronunciation
How to pronounce Arthroceras pollinosum: //ˌɑːrθroʊˈsɛrəs pɒlɪˈnoʊsəm//
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Identification
Members of the Arthroceras can be distinguished from other Rhagionidae by their modified , which bear a distinctive terminal style or -like structure. The Arthrocerinae is distinguished from other rhagionid subfamilies primarily by antennal . Without direct examination of specimens or detailed original description, -level identification features for A. pollinosum specifically cannot be confirmed.
Similar Taxa
- Other Rhagionidae generaArthroceras differ from other snipe flies in antennal structure; Arthrocerinae members have uniquely modified compared to Rhagioninae and other .
- Arthroceras antica (Walker, 1854)The only other in the Arthroceras; A. pollinosum was described later and may differ in geographic distribution and subtle morphological features, though comparative details require examination of .
More Details
Taxonomic note
Arthroceras pollinosum is one of only two currently placed in the Arthroceras, the other being A. antica. The genus is classified in the small Arthrocerinae, which contains approximately 10-12 species across three genera worldwide. The subfamily is considered one of the more derived lineages within Rhagionidae based on morphological studies.
Data scarcity
This is exceptionally poorly documented in public databases, with minimal observational records and no published ecological studies identified in major repositories. This likely reflects genuine rarity, restricted distribution, or under-sampling rather than taxonomic obscurity, given that the type description dates to 1886.