Rhyssemus puncticollis
Brown, 1929
Rhyssemus puncticollis is a small dung beetle in the Scarabaeidae, first described by Brown in 1929. The species has been recorded from both the Palaearctic region (central and eastern Europe) and the Nearctic region (Ontario, Canada), indicating a transatlantic distribution. It belongs to the tribe Psammodiini, which typically includes species associated with sandy or psammophilous . The specific epithet 'puncticollis' refers to punctation on the pronotum.
Pronunciation
How to pronounce Rhyssemus puncticollis: /ˈrɪsɛməs ˌpʌŋktɪˈkɒlɪs/
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Identification
The name 'puncticollis' suggests diagnostic punctation on the pronotum (collum), which may help distinguish it from . As a member of Psammodiini, it likely exhibits adaptations for burrowing in sandy substrates. Without detailed original description or revisionary work, specific diagnostic features remain undocumented in the provided sources.
Distribution
Palaearctic: Austria, Belgium, Bulgaria, Czech Republic, Germany, Latvia, Poland. Nearctic: Canada (Ontario). The disjunct distribution across Europe and North America suggests either natural transatlantic range or possible anthropogenic introduction.
More Details
Taxonomic Note
Rhyssemus puncticollis was described by Brown in 1929. The Rhyssemus is classified in the tribe Psammodiini, subtribe Rhyssemina, within the dung beetle Aphodiinae. Psammodiini are typically associated with sandy and are sometimes referred to as 'sand-loving' dung beetles.
Specimen Records
GBIF records indicate presence in multiple European countries and a single Canadian province (Ontario), with 12 iNaturalist observations documented.