Protolophus tuberculatus
Banks, 1893
Protolophus tuberculatus is a of harvestman (order Opiliones) in the Protolophidae, first described by Banks in 1893. It is found in the western United States and broader North America. As a member of the Protolophidae, it represents one of the relatively small families within the suborder Eupnoi. The specific epithet "tuberculatus" refers to tuberculate (bumpy or knobby) features, likely on the body surface.
Pronunciation
How to pronounce Protolophus tuberculatus: /proʊˈtɒloʊfəs tjuːˌbɜːrkjʊˈleɪtəs/
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Identification
Identification relies on the combination of: (1) occurrence in western North America, (2) membership in Protolophidae (distinguished from other Eupnoi families by subtle genitalic and leg-segment characters), and (3) tuberculate body sculpturing. Differentiation from other Protolophus requires examination of male genitalia ( ) and detailed leg spination patterns, which are the primary diagnostic features for species-level in this .
Images
Appearance
As a protolophid harvestman, the body is divided into a prosoma () and opisthosoma (), with the two regions broadly joined without a narrow waist. The specific epithet "tuberculatus" indicates the presence of —small, rounded projections—likely on the body surface or legs. Body coloration and detailed proportions are not well documented in available sources.
Distribution
Western United States; broader records indicate presence in North America. The has been documented through 42 iNaturalist observations.
Similar Taxa
- Other Protolophus speciesCongeneric share general body plan and geographic range; require genitalic examination for definitive separation
- Other Eupnoi harvestmen (e.g., Phalangiidae, Sclerosomatidae)Superficially similar body form, but differ in -level characters including tarsal segmentation, genitalia structure, and often body proportions
More Details
Taxonomic note
The specific epithet "tuberculatus" is shared with several unrelated arthropods, including the fossil Cretonthophilus tuberculatus (Histeridae) from Burmese amber, which is a completely different with no relationship to this harvestman.