Thread subject: Diptera.info :: Leopoldius brevirostris? --> Leopoldius brevirostris or L. signatus

Posted by fatsemann on 19-05-2020 22:34
#1

Hello,

is this a male Leopoldius brevirostris?
Date: 23.07.2019
Location: Germany, NRW, 47608 Geldern
Size: 11 mm

Best regards
Bernd

Edited by fatsemann on 26-08-2020 23:29

Posted by fatsemann on 19-05-2020 22:35
#2

2

Posted by fatsemann on 19-05-2020 22:35
#3

3

Posted by Sundew on 20-05-2020 12:24
#4

May be... The problem is: it is a male. Only females can be identified without fail, their genitalia are very typical. According to Falk (https://www.flick...078290811/), L. brevirostris has broad black streaks down the face and entirely yellow hind femora. The first character matches well, the second less. Van Veen (https://home.hccn...ldius.html) says the snout should be blackish, which is not convincing here. Mielczarek (https://www.resea..._in_Krakow) depicts a L. brevirostris male without the black facial streaks and with the hind femora partially black. So what can we conclude? I adhere to "may be" - sorry!
Regards, Sundew

Posted by Sundew on 20-05-2020 13:32
#5

Addendum: Because of the black frons, the decision is between L. brevirostris and L. signatus. So the odds are fifty-fifty to get the right name. Just label it "L. cf. brevirostris" with a note that it might also be the other species...