Polites sabuleti

(Boisduval, 1852)

Sandhill Skipper, Saltgrass Skipper

Polites sabuleti is a small grassland in the , to western North America from southern British Columbia to Baja California and east to the Rocky Mountains. It has been to Hawaii. The is notable for its association with weedy grasses including Bermuda grass (Cynodon dactylon), and has experienced significant declines in parts of its range, particularly in California's Sierra Valley.

Polites sabuleti by (c) Alex, some rights reserved (CC BY), uploaded by Alex. Used under a CC-BY license.

Sandhill Skipper at Lily Lake (14872090660) by Katja Schulz from Washington, D. C., USA. Used under a CC BY 2.0 license.

Sandhill Skipper - Polites sabuleti, Packer Lake, California - 26328821615 by Judy Gallagher. Used under a CC BY 2.0 license.

Pronunciation

How to pronounce Polites sabuleti: /pəˈlaɪtiːz sæbjuˈleɪtaɪ/

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

Identification

Distinguished from similar Polites by association and geographic range. The species' reliance on Bermuda grass and other low-growing grasses in open, often alkaline or sandy habitats may aid identification. Multiple described (at least 12) showing geographic variation across its range, though subspecies identification requires detailed examination.

Images

Appearance

Small with wingspan of 22–32 mm. Typical skipper with body, large , and with hooked . coloration and pattern details not specified in available sources.

Habitat

Grassland , particularly those with alkaline soils or sandy conditions. Associated with open areas supporting grasses including Bermuda grass, Kentucky bluegrass, and saltgrass. Found from sea level to high elevations, with elevational range varying by region.

Distribution

to western North America: southern British Columbia and eastern Washington south through California and northern Arizona to Baja California; east to southeastern Wyoming, central Colorado, and northeastern New Mexico. and established in Hawaii.

Seasonality

Single at high elevations with active June to August. Multiple generations (March to October) in southern parts of range and at low elevations. Timing varies with latitude and elevation.

Diet

feed on various grasses including Cynodon dactylon (Bermuda grass), Poa pratensis (Kentucky bluegrass), Distichlis spicata var. stricta (saltgrass), Eragrostis trichodes, Agrostis scabra, Festuca idahoensis, and Festuca brachyphylla. feed on flower nectar.

Host Associations

Cynodon dactylon - larval Bermuda grass
Poa pratensis - larval Kentucky bluegrass
Distichlis spicata var. stricta - larval Saltgrass
Eragrostis trichodes - larval
Agrostis scabra - larval
Festuca idahoensis - larval
Festuca brachyphylla - larval

Life Cycle

with , , , and stages. Larvae feed on grasses; likely occurs in or near plants. Number of per year varies by location and elevation: at high elevations, at low elevations and in southern range.

Behavior

are active during daylight hours. period and number of determined by and temperature cues, with likely influenced by environmental conditions.

Ecological Role

in grassland . consume grasses, potentially contributing to . may serve as when nectaring. Serves as an for grassland health; declines have been documented in long-term studies.

Human Relevance

Subject of long-term by researchers including Art Shapiro's transect studies in California. Documented population declines have contributed to understanding broader population trends and climate change impacts. Not a significant agricultural pest despite feeding on common lawn grasses.

Similar Taxa

Other Polites speciesSimilar and preferences; distinguished by geographic range, associations, and subtle morphological differences
Other Hesperiinae skippersShared grassland and grass-feeding ; identification requires examination of pattern, size, and

More Details

Population Decline

Documented in precipitous decline at Sierra Valley, California site by Art Shapiro's research group, despite breeding on ubiquitous Bermuda grass. Decline attributed to climate change factors including warming temperatures and disruption of cues.

Subspecies Diversity

At least 12 described, reflecting geographic variation across western North America: P. s. sabuleti, P. s. tecumseh, P. s. chusca, P. s. margaretae, P. s. ministigma, P. s. alkaliensis, P. s. albamontana, P. s. sinemaculata, P. s. nigrescens, P. s. basinensis, P. s. aestivalis, and P. s. channelensis.

Hawaiian Introduction

Established as non- in Hawaii, representing a successful human-mediated range expansion outside native distribution.