Stenolophus rugicollis
(LeConte, 1859)
Stenolophus rugicollis is a ground beetle in the Carabidae, described by LeConte in 1859. The Stenolophus comprises small, often abundant beetles commonly known as seedcorn beetles due to their frequent occurrence in agricultural fields. in this genus are typically spring-active and readily attracted to lights at night. Stenolophus rugicollis is recorded from the United States.
Pronunciation
How to pronounce Stenolophus rugicollis: /stəˈnɒləfəs ˌruːdʒiˈkɒlɪs/
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Identification
Small carabid in the Stenolophus. Members of this genus are characterized by their small size (typically 5-8 mm), , and often somewhat flattened bodies. The specific epithet "rugicollis" refers to wrinkled or sculpturing on the pronotum (neck region), which may aid in distinguishing this from . Accurate identification to species level requires examination of genitalia and other subtle morphological features.
Distribution
United States; recorded as present in North America.
Seasonality
Active in early spring; has been observed at lights in March in Kansas.
Behavior
; attracted to artificial lights including UV blacklights. Like other Stenolophus , likely active on the ground surface.
Human Relevance
Member of a containing agricultural pests. Some Stenolophus are known as seedcorn beetles that can damage germinating seeds in corn and other crops; specific pest status of S. rugicollis is not established.
Similar Taxa
- Stenolophus leconteiSimilar small size, spring activity period, and light-attracted ; requires careful examination of pronotal sculpturing and male genitalia for separation.
- Stenolophus ochropezusOverlapping geographic range and preferences; distinguished by subtle differences in elytral microsculpture and body proportions.