Polyphylla erratica

Hardy & Andrews, 1978

Death Valley June Beetle

Polyphylla erratica, commonly known as the Death Valley , is a scarab beetle in the Melolonthinae. It is narrowly to the Amargosa River drainage basin in the southwestern United States. The is associated with saltgrass and has been documented at Saratoga Springs in Death Valley. Like other Polyphylla species, it exhibits in antennal structure, with males possessing enlarged, for detecting female .

Pronunciation

How to pronounce Polyphylla erratica: //ˌpɒlɪˈfɪlə ɛˈrætɪkə//

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Identification

Polyphylla erratica can be distinguished from other Polyphylla by its restricted geographic distribution in the Amargosa River basin. Males possess the characteristic enlarged, fan-like () typical of the , which they hold splayed when actively searching for females. The specific morphological features separating it from are not detailed in available sources.

Habitat

Saltgrass in desert environments, specifically within the Amargosa River drainage basin. Documented includes Saratoga Springs in Death Valley, where the occurs at all life stages.

Distribution

to the southwestern United States. Known only from the Amargosa River drainage basin in California and Nevada.

Host Associations

saltgrass - Provides at all life stages

Behavior

Males are attracted to lights at night. Based on -level documented in , males likely use their enlarged to detect female , and females may be flightless or rarely encountered.

Similar Taxa

Polyphylla mescalerensisAnother sand dune-associated Polyphylla from the southwestern United States, but occurs in the Mescalero Sand Dunes of New Mexico rather than the Amargosa River basin
Polyphylla monahansensisAnother southwestern sand dune Polyphylla , but from the Monahans Sandhills of Texas
Polyphylla pottsorumSmaller southwestern Polyphylla found in sand dune , but with different geographic distribution

More Details

Conservation status

The extremely narrow range of this (restricted to the Amargosa River drainage) suggests potential vulnerability to disruption, though formal conservation assessments are not documented in available sources.

Research history

Described by Hardy & Andrews in 1978. The remains poorly known due to its restricted distribution and the inaccessibility of its desert .