Posted by Carnifex on 08-05-2018 14:55
#5
Tony, thank you for the determination.
According to Willi HENNIG (1941),
Ch. rosae is distinguished by
Ch. nigricornis by a yellow coloration of the 3rd antennal segment. In my specimen, the antenna is completely black.
Does this feature still hold true nowadays? Because from what I read, only males can be separated.