Spilodiscus ulkei
(Horn, 1870)
clown beetle
Spilodiscus ulkei is a of clown beetle in the Histeridae. The species is characterized by distinctive red maculations on the , earning the its descriptive name. It occurs across a broad geographic range in western and central North America, extending from Canada through the United States to Mexico. The species has been documented in various arid and semi-arid , including grasslands and desert scrub.
Pronunciation
How to pronounce Spilodiscus ulkei: //ˌspaɪloʊˈdɪskəs ˈʌlkaɪ//
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
Distinguished from other Spilodiscus by the pattern and placement of red maculations on the . The two red spots on the elytra are a key field mark for the . Identification to species level within Spilodiscus requires examination of specific details of elytral punctation and maculation pattern.
Habitat
Arid and semi-arid environments including grasslands, desert scrub, and open sandy areas. Documented in association with hackberry (Celtis reticulata) and other woody vegetation in western Oklahoma.
Distribution
Canada (Alberta, Saskatchewan), United States (Arizona, Colorado, Iowa, Idaho, Kansas, Montana, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, Utah, Wyoming), Mexico, and Central America.
Seasonality
Active have been observed in early May in northwestern Oklahoma, with activity likely extending through warmer months.
Behavior
have been observed on the ground in open sandy and in association with flowering vegetation. One observation describes an individual found while photographing flowers, suggesting ground-foraging or flower-visiting .
Ecological Role
As a member of Histeridae, likely functions as a or scavenger in soil and litter , though specific ecological role for this is not documented.
Similar Taxa
- Spilodiscus flavicollisSimilar size and general appearance, but differs in details of elytral maculation and pronotal coloration.
- Other Histeridae generaThe distinct red elytral maculations of Spilodiscus distinguish it from most other North American histerids, which typically lack such bright color patterns.