Pandeleteius rotundicollis
Fall, 1907
Pandeleteius rotundicollis is a of broad-nosed weevil described by Fall in 1907. It belongs to the Curculionidae, one of the largest families of beetles. The species is known from scattered localities in southwestern North America, with records from Texas, New Mexico, Arizona, and the Mexican state of Chihuahua. Like other members of its , it likely inhabits arid and semi-arid environments, though specific ecological details remain poorly documented.
Pronunciation
How to pronounce Pandeleteius rotundicollis: //ˌpændɛlɪˈtiːəs ˌroʊtʊndɪˈkɔlɪs//
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Identification
The specific epithet "rotundicollis" refers to the rounded pronotum, which may help distinguish this from with more angular or elongated pronotal shapes. As a member of Pandeleteius, it possesses the characteristic broad, short rostrum typical of broad-nosed weevils ( Entiminae), in contrast to the elongated snout of most other weevils. Accurate identification to species level requires examination of genitalic structures and other subtle morphological features; external characters alone are generally insufficient.
Distribution
Recorded from southwestern United States (Texas: Brewster, Jeff Davis counties; New Mexico: Otero County; Arizona: Cochise County) and northern Mexico (Chihuahua). The sparse records suggest either genuinely restricted distribution or undercollection due to cryptic habits.
Similar Taxa
- Other Pandeleteius speciesNumerous occur in the same region; most require dissection for reliable separation. P. rotundicollis may be distinguished by its rounded pronotum, but this character varies and should be confirmed with reference specimens.
More Details
Taxonomic note
The Pandeleteius is part of the tribe Tanymecini within the Entiminae. -level in this group is challenging due to morphological conservatism and the importance of male genitalia for . The original description by Fall (1907) was based on specimens from Texas.
Data deficiency
This is represented by only 5 observations in iNaturalist and scattered museum records, indicating it is either genuinely rare, difficult to detect, or simply undercollected. No published studies have examined its , , or status.