According to BugGuide the Condylostylus sipho species group consists of six very similar species. All six species are found in Eastern North America, and all have some type of wing markings, but these markings may be to faint to see.
There are 16 records in the project database.
GA | AL | WA | FR | CL | MO | HO | BA | BC | HA | CE | PG | AA | CV | CH | SM | KE | QA | CN | TA | DO | WI | SO | WO |