Dysticheus
Horn, 1876
Dysticheus is a of broad-nosed in the , established by Horn in 1876. It belongs to the Entiminae and tribe Peritelini. The genus contains at least two described : Dysticheus insignis (Horn, 1876) and Dysticheus rotundicollis (Van Dyke, 1953). Members of this genus are part of the diverse weevil fauna of North America.
Pronunciation
How to pronounce Dysticheus: //dɪˈstɪk.i.us//
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
As a of broad-nosed (Entiminae), Dysticheus possess the characteristic short, broad typical of the rather than the elongated snout seen in other groups. Specific diagnostic features distinguishing Dysticheus from related genera within Peritelini are not documented in available sources. The two described species may be distinguished by the epithet rotundicollis (referring to rounded ) in D. rotundicollis versus insignis in D. insignis, though formal species-level require examination of .
Distribution
North America. Dysticheus insignis was described from the western United States, while D. rotundicollis was described from California.
Similar Taxa
- Other Peritelini generaShares tribe-level characteristics including broad and general Entiminae body plan; requires examination of and other fine morphological details for definitive separation.
- Other Entiminae generaBroad-nosed is widespread across the ; precise tribal and generic assignment depends on detailed structural characters not visible in casual observation.
More Details
Taxonomic history
The was established by George Henry Horn in 1876 with D. insignis as the . The second species, D. rotundicollis, was added by Van Dyke in 1953. The genus has received limited taxonomic study since its original description.
Data availability
Only two observations are recorded in iNaturalist as of data compilation, indicating the is rarely encountered or underreported. Published biological and ecological information is minimal.