Diptera.info :: Identification queries :: Diptera (adults)
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 Calliphoridae. Help id, please.
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| Eugene K |
Posted on 19-03-2018 13:13
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Member Location: Posts: 595 Joined: 10.03.18 |
2014.07.29 Russia, Novgorod region. On the bushes near river bank Eugene K attached the following image:  [288.03Kb] |
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| Eugene K |
Posted on 19-03-2018 13:13
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Member Location: Posts: 595 Joined: 10.03.18 |
Eugene K wrote:
2014.07.29 Russia, Novgorod region. On the bushes near river bank Eugene K attached the following image:  [284.94Kb] |
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| johnes81 |
Posted on 21-03-2018 18:07
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 Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16 |
looks like Lucilia silvarum 3 postacrostichal bristles, brown/black basicostal scale, one ad mid tibia and brown palpi. John and Nini. Naturalists not experts. |
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| johnes81 |
Posted on 21-03-2018 19:02
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Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16 |
i am very tired today. I've been studying php and i'm trying to build a secure login system. anyway, i had to eat something to restore some energy. after looking at this closer, i think that there are only two ac. I cannot tell. the eyes are very close together (less than the width of the 3rd antennal segment.) Therefore, this is more likely a male of caesar, ampullacea or illustris if there are only two ac. i have trouble judging these bristles with such angles. maybe someone else can tell if there are three or two ac. do you have a better photo of the thorax to be certain? lucilia are very difficult and most times require genitalia. in the future, try to get a clear count of post acrostichals in the photo, as well as mid tibia, basicosta and palpi. otherwise, you may need genitalia for a positive id. once again, please ignore my earlier post. Edited by johnes81 on 21-03-2018 19:04 John and Nini. Naturalists not experts. |
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| Eugene K |
Posted on 22-03-2018 10:52
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Member Location: Posts: 595 Joined: 10.03.18 |
Thank you, Johnes81 (Is it a true way to call you with your nick?). I'm not a real entomologist, forgive me, if I misunderstand you. But it seems to me, there are 5 acrostichal bristles - 2 on the front part of thorax, and 3 on the back part. This photo is the best, alas. All I can do - to crop the photo with a less distortion. May be, you can see better with this file?
Eugene K attached the following image:  [247.93Kb] |
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| johnes81 |
Posted on 22-03-2018 12:51
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Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16 |
Hello Eugene, you can call me John. All is good. the five bristles that you refer to in your post are actually dorsocentral (dc) bristles. the first two setae are pre-sutural bristles. Meaning that the bristles exist before the suture. the bristles placed after the suture are referred to as post sutural bristles. acrostichal bristles (ac setae or hairs) are the point of focus with Lucilia. I am not an entomologist either. I just love nature and i study entomology on my own. I love to photograph, study and interact with nature. I call what i do field biology but this topic allready exists. Anyway, here is a link to a drawing of the seate: https://diptera.info/infusions/terms/terms.php?op=view&id=269 most times we just shorten the names to ac or dc. dc can be just as important with many other types of flies. one other thing to mention is that hairs are usually considered to be fine and have no eyelet/socket. Bristles are generally thicker and have a socket/eyelet where they attach to the body. Regarding Lucilia, if one of these bristles is missing, then you may still be able to count it based upon visibility of a socket. Back to the fly: i see only two ac. refer to the five bristles that you see. the five bristles are the dc row. behind it begin the two rows of ac bristles. you should see that there are only two post acrostichal bristles. also two pre sutural ac bristles. I suspect that this is a male Lucilia caesar but i can only recommend that we call it Lucilia cf caesar male. The eyes are very close together which is a strong indicator of caesar. The hypopygium can help identify caesar because it is much larger than the similar illustris and ampullacea. However, this is not visible in these photos. I hope that you have a pleasant day 
John and Nini. Naturalists not experts. |
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| Eugene K |
Posted on 22-03-2018 18:41
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Member Location: Posts: 595 Joined: 10.03.18 |
John, thank you! Good evening to you, too. |
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but don't see the image in the post.