Pandeleteius rotundicollis
Fall, 1907
Pandeleteius rotundicollis is a of broad-nosed described by Fall in 1907. It belongs to the , one of the largest families of . 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 , which may help distinguish this from with more angular or elongated pronotal shapes. As a member of Pandeleteius, it possesses the characteristic broad, short typical of broad-nosed ( 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 , 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 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 biology, , or status.