Diptera.info - Discussion Forum: Lispe sp

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Lispe sp
Smoggycb	#1 Posted on 21-10-2009 11:38
Member Location: Rye Harbour, England Posts: 350 Joined: 19.05.07	Does anybody have any idea on this one? Caught on 13th August this year on the shingly margins of a freshwater lake. Smoggycb attached the following image: [53.61Kb]


Smoggycb	#2 Posted on 21-10-2009 11:39
Member Location: Rye Harbour, England Posts: 350 Joined: 19.05.07	A view of the abdomen Smoggycb attached the following image: [32.85Kb]


Nikita Vikhrev	#3 Posted on 21-10-2009 11:54
Member Location: Moscow, Russia Posts: 9223 Joined: 24.05.05	99% Lispe litorea, but to be 100% sure, I'd prefer to see close-up of head (anterior view) and/or mid leg. Nikita Vikhrev - Zool Museum of Moscow University


Smoggycb	#4 Posted on 21-10-2009 12:30
Member Location: Rye Harbour, England Posts: 350 Joined: 19.05.07	Close up of head. Smoggycb attached the following image: [43.44Kb]


Nikita Vikhrev	#5 Posted on 21-10-2009 13:50
Member Location: Moscow, Russia Posts: 9223 Joined: 24.05.05	Lispe litorea Nikita Vikhrev - Zool Museum of Moscow University


Smoggycb	#6 Posted on 21-10-2009 14:15
Member Location: Rye Harbour, England Posts: 350 Joined: 19.05.07	Thanks very much Nikita. Looking at the RES guide and the Muscidae of Central Europe, both mention a brown spot near the insertion of the antennae (I presume that is why you wanted to look at a frontal view of the head). Could you mark it on the last image so I know what I am looking for next time!


Nikita Vikhrev	#7 Posted on 21-10-2009 14:36
Member Location: Moscow, Russia Posts: 9223 Joined: 24.05.05	These spots are shifting depending on angle of view. Shape of frontal triangle also important - in your case narrow (excl. - caesia) Nikita Vikhrev attached the following image: [77.89Kb] Nikita Vikhrev - Zool Museum of Moscow University


Smoggycb	#8 Posted on 21-10-2009 14:48
Member Location: Rye Harbour, England Posts: 350 Joined: 19.05.07	Brilliant, thanks Nikita. My main worry was L. loewi, males of which I have certainly had (no vibrissae, long, curved hair on mid-metatarsus). I have had some females which I have tentatively marked as loewi also, and now I know what I am supposed to be looking for I can go back and check. Edited by Smoggycb on 21-10-2009 14:50


Smoggycb	#9 Posted on 22-10-2009 08:12
Member Location: Rye Harbour, England Posts: 350 Joined: 19.05.07	Out of curiosity, what was the feature you were looking for on the mid-leg?


Nikita Vikhrev	#10 Posted on 22-10-2009 12:04
Member Location: Moscow, Russia Posts: 9223 Joined: 24.05.05	Mid tibia with 1 ad seta. loewi Ringd. Mid tibia with 2 or more ad setae. litorea Fall�n Nikita Vikhrev - Zool Museum of Moscow University


Smoggycb	#11 Posted on 22-10-2009 15:48
Member Location: Rye Harbour, England Posts: 350 Joined: 19.05.07	Thanks for the info, very useful to know


Nikita Vikhrev	#12 Posted on 01-08-2010 08:23
Member Location: Moscow, Russia Posts: 9223 Joined: 24.05.05	I'm sorry ffor my misID. Now I dived deeper in this group. It is Lispe loewi, as you correctly suggested yourself. Nikita Vikhrev - Zool Museum of Moscow University


Smoggycb	#13 Posted on 01-08-2010 08:47
Member Location: Rye Harbour, England Posts: 350 Joined: 19.05.07	Thanks very much for coming back to this one Nikita, as it makes sense of the fact that all my males from here were loewi and all the females litorea! Which features make you go for L. loewi?


Nikita Vikhrev	#14 Posted on 01-08-2010 09:10
Member Location: Moscow, Russia Posts: 9223 Joined: 24.05.05	Abdominal spots and absence of black spots near antennae. Nikita Vikhrev - Zool Museum of Moscow University


Smoggycb	#15 Posted on 01-08-2010 15:52
Member Location: Rye Harbour, England Posts: 350 Joined: 19.05.07	Thanks Niita. Just out of interest, do you have any images of litorea showing the facial spots?

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