Tollius curtulus
(Stål, 1859)
Tollius curtulus is a broad-headed bug in the Alydidae, first described by Stål in 1859. It belongs to a group of true bugs characterized by their expanded, triangular shape. The has been documented across a wide geographic range spanning from western North America to the northeastern United States, with additional records in Central America.
Pronunciation
How to pronounce Tollius curtulus: /ˈtɔl.i.us ˈkɝ.tʊ.ləs/
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Identification
As a member of Alydidae, Tollius curtulus possesses the 's diagnostic broad, triangular that is conspicuously wider than the pronotum. The Tollius can be distinguished from related alydine genera by genitalic characters, particularly the structure of the male parameres. -level identification requires examination of these genitalic features and comparison with related species in the genus.
Distribution
Documented from western North America (California, Colorado, Utah) and the northeastern United States (New York), with additional records in Central America. The disjunct distribution pattern suggests either widespread occurrence across intermediate regions or potential specificity in different biogeographic zones.
Similar Taxa
- Other Tollius species share the broad-headed and require genitalic examination for definitive separation; T. curtulus is distinguished by specific paramere structure.
- Other Alydidae genera (e.g., Alydus, Megalotomus)Alydines share the expanded shape, but differ in pronotal structure, antennal proportions, and male genitalia; Tollius is separated by combination of head shape and genitalic features.