Dichelonyx truncata

(LeConte, 1856)

Dichelonyx truncata is a of scarab beetle in the Melolonthinae, tribe Dichelonychini. It is native to western North America, with records from the western United States and southwestern Canada. The species was described by John Lawrence LeConte in 1856. Like other members of its , it is associated with open, often xeric in the interior west.

Pronunciation

How to pronounce Dichelonyx truncata: //ˌdaɪkəˈloʊnɪks trʌŋˈkeɪtə//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Dichelonyx truncata belongs to a characterized by (shortened or appearing cut off) that expose the , a trait reflected in the genus name. -level identification within Dichelonyx requires examination of male genitalia and detailed comparison of elytral punctation and coloration patterns. D. truncata can be distinguished from by specific features of the pronotal and elytral ; however, reliable identification typically requires reference to original descriptions or comparison with authoritatively identified specimens.

Habitat

Based on collection records and the of , Dichelonyx truncata occurs in open, often dry including grasslands, sagebrush steppe, and open woodlands in the interior western North America. The Dichelonyx is broadly associated with xeric to mesic open environments.

Distribution

Western North America. Documented from the United States (California, Colorado, Kansas, Montana, Nebraska, Nevada, North Dakota, Oregon, South Dakota, Utah) and Canada (Alberta, British Columbia, Saskatchewan).

Behavior

have been collected at ultraviolet and mercury-vapor lights, indicating or activity. This is consistent with the of many melolonthine scarabs.

Similar Taxa

Dichelonyx albicollisOverlaps in distribution and ; distinguished by differences in pronotal coloration and elytral punctation .
Dichelonyx vicinaSympatric in parts of the western United States; requires examination of male genitalia and elytral truncation for reliable separation.
Other Dichelonyx speciesThe contains multiple with similar and general body form; precise identification depends on subtle differences in punctuation, coloration, and genitalic structure.

More Details

Taxonomic history

Described by LeConte in 1856, with the specific epithet 'truncata' likely referring to the characteristic of the . The has not been subject to modern revisionary study, and its boundaries relative to closely related species may warrant reevaluation.

Collection methods

Specimens have been documented from ethanol-baited pitfall traps and from blacklight/UV light collections, suggesting are attracted to both fermenting baits and light sources.