Cyclorhipidion distinguendum
‘The holotype specimen of X. distinguendus does not match Eggers’ (1930) description; however, the labels on the specimen match the description. The description clearly indicates a species that belongs in Cyclorhipidion, yet the specimen is of an undescribed Microperus (Smith et al. in prep). The holotype labeled as Xyleborus tristis matches Eggers’ description of X. distinguendus, and is here designated as the neotype of Xyleborus distinguendus. We are confident that this neotype was the holotype specimen. Due to the mislabeling event it is very likely that the species does not actually occur at the low elevation indicated by the locality label.’ (Smith, Beaver, Singh & Cognato, 2018:139)
Read MoreCyclorhipidion bispinum
Cyclorhipidion armiger
Cyclorhipidion obtusatum
Cyclorhipidion druk
Cyclorhipidion nemesis
Decribed from numerous specimens in the southeastern United States, but presumed to be of Asian origen.
Read MoreCyclorhipidion californicum
SImth & Cognato (2022:8) concluded that the type of X. californicus Wood is distinct from C. boadoanum Reitter with which it had been placed in synonymy. No other records from North America or Asia (its putative origen) were known at the time of writing. Other records from California and the west coast are of C. bodoanum. Whether or not C. califronicum (Wood) is still present in North America is an open question.
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