Diptera.info - Discussion Forum: Phasia species

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Phasia species
Cor Zonneveld	#1 Posted on 24-09-2007 21:35
Member Location: Amstelveen, the Netherlands Posts: 840 Joined: 14.10.06	Last sunday I saw my first sure Phasia hemiptera, very nice! This made me doubt an earlier determination as such. First, these flies were smaller (in my memory at least! - date 7 August 2007, so memory not too reliable...). Moreover, the wing of the male (?) is entirely dusky, without any stripes, nor with blueish reflections. Third, the scutellum is black, not yellow as in P. hemiptera. Can my initial determination of these flies as P. hemiptera ne confirmed or corrected? Cor Zonneveld attached the following image: [128.84Kb] Thanks for your attention Cor Zonneveld


Cor Zonneveld	#2 Posted on 24-09-2007 21:36
Member Location: Amstelveen, the Netherlands Posts: 840 Joined: 14.10.06	And this is probably the opposite sex - I guessed the male! Cor Zonneveld attached the following image: [134.82Kb] Thanks for your attention Cor Zonneveld


Cor Zonneveld	#3 Posted on 24-09-2007 21:37
Member Location: Amstelveen, the Netherlands Posts: 840 Joined: 14.10.06	Male from another angle. Cor Zonneveld attached the following image: [123.84Kb] Thanks for your attention Cor Zonneveld


Cor Zonneveld	#4 Posted on 24-09-2007 21:40
Member Location: Amstelveen, the Netherlands Posts: 840 Joined: 14.10.06	And, just to be sure, my sunday P. hemiptera Cor Zonneveld attached the following image: [114.63Kb] Thanks for your attention Cor Zonneveld


ChrisR	#5 Posted on 24-09-2007 22:07
Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04	The orange hairs on the side of the thorax mean it must be P.hemiptera


Cor Zonneveld	#6 Posted on 25-09-2007 20:53
Member Location: Amstelveen, the Netherlands Posts: 840 Joined: 14.10.06	Thanks, Chris! It's awfully variable species, then! But I'm happy now to know what to look for. Thanks for your attention Cor Zonneveld


ChrisR	#7 Posted on 25-09-2007 22:08
Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04	Yes, I was talking today with another dipterist who said he's seen a lot of very pale-coloured specimens this year. They were large, very orange and had reduced markings on the wing, but they all keyed well to P.hemiptera.