Diptera.info

Posted by rafael_carbonell on 21-09-2016 16:51

I took pictures of this Stratiomyidae fly on a Medicago sativa leave and thought first it was a Chloromyia, but after I compared the antenna color with similar featured genus (Chloromyia, Sargus, Microchrysa) and seemetd to fit with Microchrysa cyaneiventris, which is not known at FEu in Spanish mainland. Is that correct?

[Iberian peninsula: Catalonia: Girona: Beuda, 400 masl, 2015 may 22th]

Edited by rafael_carbonell on 23-09-2016 15:39

Posted by rafael_carbonell on 22-09-2016 19:04

Thanks Paul, but, has M.polita got a partly orange antenna? Looking at the web pictures it seems not, and in the case of M. cyaneiventris is yes.

Posted by Sundew on 22-09-2016 23:45

Well, Microchrysa polita has dark antennae... However, the shape of all Microchrysa antennae is different, they are shorter and more roundish, whereas here they are really elongated. I suppose this is another genus! What about Chloromyia speciosa (compare several pictures here: http://xespok.net...9.jpg.html)?

Edited by Sundew on 23-09-2016 00:02

Posted by Paul Beuk on 23-09-2016 13:15

Eyes are haired so that should indeed ruleout Microchrysa. Brownish third antennal segment supports speciosa but the colour of basitarsi 2 and 3 does not strike me as 'contracting yellow'...

Posted by rafael_carbonell on 23-09-2016 15:38

Yes, the colour of the legs was darkened by the shadow. In another picture I can see clearly basitarse III is yellow. And the pictures of "xespok" of C. speciosa are the first I see with partly brown antenna.

Thanks to all