Thread subject: Diptera.info :: Lasiomma sp.?
Posted by Rui Andrade on 24-02-2011 21:19
#1
I’ve collected 4 male anthomyiids swarming below the branches of a Quercus suber. Do they belong to Lasiomma sp.?
location: Porto, Portugal
date: 23/02/2011
Posted by Rui Andrade on 24-02-2011 21:20
#2
.
Posted by Rui Andrade on 24-02-2011 21:21
#3
The tree where they were swarming:
Posted by javanerkelens on 24-02-2011 21:30
#4
It is Lasiomma indeed.
I also think to see long pv on hindfemur, so could fit to L.seminitidum.
But to be sure i have to see how many ad setae there are on the hindtibia.
Joke
Posted by Rui Andrade on 24-02-2011 21:53
#5
I hope this helps:
Posted by javanerkelens on 24-02-2011 22:21
#6
I said ad setae, but meant av setae (sorry) But on the first crop we can see two strong av (one probable broken) and it just fit to L. seminitidum.!
Joke
Posted by Rui Andrade on 24-02-2011 23:05
#7
Thanks Joke. I want to show you one more photo (a bad one) of another specimen that seems to show that it also has only 2 strong av. Is there another possible species with 2 av?
Posted by javanerkelens on 25-02-2011 00:07
#8
From the species i know (and discriped by Ackland), L.seminitidum has long pv on hindfemur and
at most 3 av on hindtibia....so 2av is possible.
Your species has long pv on hindfemur, so likely it is L.seminitidum.
There are more Lasiomma species, but the only one i know are discriped from Neartic region.
Joke
Posted by Rui Andrade on 25-02-2011 00:43
#9
Thank you so much for your time Joke!:)