Posted by solito de solis on 13-01-2018 16:21
#1
Hey dipterists
I'm facing this larvae with difficulties to determiate the genera
I guess this is a Orthocladiinae but I have no informations to go further more
Any help ?
merci beaucoup
SDS
Edited by solito de solis on 13-01-2018 21:30
Posted by Tony Irwin on 13-01-2018 20:02
#2
With those antennal ratios, and the dark patch on the postmentum, I'd say this was
Brillia modesta or close.
Posted by solito de solis on 13-01-2018 21:25
#3
@TOny
Merci beaucoup. Great answer !
Brillia genera
DIAGNOSIS: Distinguished by the well developed pectinate labral lamellae; plumose S I; 4 segmented
antenna with
segment 2 divided in basal third by a weakly sclerotized area; antennal blade subequal to
flagellum; distinctive mentum;
posteriorly displaced setae submenti (near posterior margin of head capsule);
and procerci and anal tubules present.
As i did not have more info... I have been stopped.
Brillia flavifrons impossible (different apotome and labral sclerites, different mentum)
Perhaps
Brillia parva ?
in Belgium records of
Brillia modesta (Meigen, 1830)
Nevertheless...
Brillia is enough for my purpose.
Thanks a lot.
SDS
Edited by solito de solis on 13-01-2018 21:29
Posted by Tony Irwin on 14-01-2018 01:03
#4
Apologies - I should have checked for name changes!
Brillia modesta is now known as
Brillia bifida. The species identification was based on Cranston's 1982 Key to the larvae of the British Orthocladiinae.
Posted by atylotus on 14-01-2018 11:19
#5
Apologies accepted :)
Brillia names have several times been changed. Sometimes I got lost too. In the Netherlands there are 2 species of Brillia: Brillia bifida (syn. Brillia modesta) with a black gula spot and Brillia longifurca (syn. B. flavifrons). without a gula spot....so B. bifida for sure.
Edited by atylotus on 14-01-2018 11:20