Helichus triangularis
Musgrave, 1935
Helichus triangularis is a of long-toed water beetle in the Dryopidae, described by Musgrave in 1935. The Helichus comprises aquatic beetles commonly associated with stream and river . Records indicate presence in North America and Middle America, though specific details about this species' remain sparse.
Pronunciation
How to pronounce Helichus triangularis: /ˈhɛlɪkəs traɪˌæŋɡjəˈlɛrɪs/
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Habitat
Aquatic environments, particularly streams and rivers. Members of Dryopidae are typically found in flowing water where they cling to submerged rocks and vegetation.
Distribution
North America and Middle America. Distribution records from GBIF confirm presence in both regions.
Similar Taxa
- Hydrophilus triangularisShares the epithet "triangularis" but belongs to Hydrophilidae (water scavenger beetles) rather than Dryopidae. Hydrophilus triangularis is a large aquatic with different and .
- Other Helichus speciesCongeneric share similar aquatic habits and may require examination of genitalia or other fine morphological details for definitive identification.
More Details
Taxonomic note
The epithet "triangularis" has been applied to multiple across different , leading to potential confusion. Helichus triangularis (Dryopidae) should not be conflated with Hydrophilus triangularis (Hydrophilidae), a much larger and more conspicuous aquatic beetle.