keithphotos.evans's picture

Hoverfly

Observed: 13th April 2012 By: keithphotos.evanskeithphotos.evans’s reputation in Invertebrateskeithphotos.evans’s reputation in Invertebrateskeithphotos.evans’s reputation in Invertebrates
hoverfly
Description:

approx 10-12mm

Identifications
Species interactions

No interactions present.

Species with which Melanostoma scalare interacts

Comments

jeremyr's picture

just agreeing with genus

just agreeing with genus really. I can't tell the difference between this and my possible mellinum

.............................
latest pics and diptera videos

Wildlife Ranger's picture

Melastoma sp

The area behind the frons appears to be black Possibly mellinum ????

Best wishes

WLR

Whats Happening with Nature ??? Visit the Nature Blog

http://florafaunauk.blogspot.co.uk/

www.ukwildlife.net

Supporting FEET Conservation work & Biodiversity Recording

http://www.ebid.net/uk/stores/medic1/Natural-History

jeremyr's picture

yes here's mine:

yes here's mine: http://www.ispot.org.uk/node/256166?nav=users_observations

.............................
latest pics and diptera videos

ophrys's picture

Male

But your other Melanostoma was a male, and the appearance of the sexes is quite different in Melanostoma: Females do not have the squared spots on the abdomen, but have the distinctive triangular spots of this specimen. This is definitely a female scalare; the male is perhaps mellinum, but not certain.

Ian
_________________

My Flickr photos...

http://www.flickr.com/photos/52163027@N02/

jeremyr's picture

yes I see that clearly now,

yes I see that clearly now, does the frons area need a hand lens or can you more or less do that with macro photos?

.............................
latest pics and diptera videos

ophrys's picture

Frons

A hand lens would be okay for picking it out, as is a good macro photo. As always, though, you are looking for as many relevant features as possible, for a certain ID. For example, this fly has a relatively long abdomen, whereas mellinum tends to be a bit shorter. Female mellinum are often very dark, as well, and can lack spots completely.

Ian
_________________

My Flickr photos...

http://www.flickr.com/photos/52163027@N02/

jeremyr's picture

and yours has a more pointed

and yours has a more pointed abdomen whereas my male is rounded, another gender not species difference though?
If the weather's ok tomorrow I'll see if there's a female about

.............................
latest pics and diptera videos

ophrys's picture

Dust spots

The extensive dust spots on the frons are typical of female scalare; on mellinum they are much smaller. The yellow antenna base is typical of scalare, too.

Ian
_________________

My Flickr photos...

http://www.flickr.com/photos/52163027@N02/

keithphotos.evans's picture

re above

thanks to you all very interesting , regards keith