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Helina species = Helina confinis
johnes81	#1 Posted on 09-09-2017 22:57
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	Berlin - mid August - 6.5 mm Female I could be wrong but I suspect this to be Helina. I have no keys to this genus. I would like to have a copy of The Muscidae of Central Europe. Meantime, I see four dots on the abdomen, so Helina quadrinotata? PS the ovipositor (genitalia) is better than counting hairs. just ask and I'll post the ovipositor. johnes81 attached the following image: [67.92Kb] Edited by johnes81 on 14-09-2017 01:03 John and Nini. Naturalists not experts.


johnes81	#2 Posted on 09-09-2017 22:57
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	dorsal johnes81 attached the following image: [56.55Kb] John and Nini. Naturalists not experts.


johnes81	#3 Posted on 09-09-2017 22:57
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	microscope - thorax johnes81 attached the following image: [150.12Kb] John and Nini. Naturalists not experts.


johnes81	#4 Posted on 09-09-2017 22:58
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	microscope - lateral johnes81 attached the following image: [174.3Kb] John and Nini. Naturalists not experts.


johnes81	#5 Posted on 12-09-2017 12:47
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	I have found some keys from a book at Google Books. I only get a few pages of a preview. I have to apologize for my inadequate post. I see that we will need many photos of this species to be able to determine a species. I will update this post with more adequate details. I think that we can eliminate quadrinotata. I am suspecting Helina parcepilosa is a possibility. I will add more photos... Edited by johnes81 on 12-09-2017 12:48 John and Nini. Naturalists not experts.


Stephane Lebrun	#6 Posted on 12-09-2017 14:59
Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07	No need to apologize. It's true Helina are difficult from picture since some details can't usually be seen (like setulae on ventral side of radial node, beneath scutellum etc). If the arista is plumose, I would tend to say H. parcepillosa as well (I guess 4 ks). Stephane.


johnes81	#7 Posted on 12-09-2017 18:32
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	Hello Sir Stephane, Thank You for your Time and Expertise. I didn't realize how difficult it is to id Helina. I am sorry about my sloppy post. I've spent some time at the microscope today. I'll post some photos now. first photo is of the underside of the scutellum: johnes81 attached the following image: [182.81Kb] John and Nini. Naturalists not experts.


johnes81	#8 Posted on 12-09-2017 18:32
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	lateral johnes81 attached the following image: [189.23Kb] John and Nini. Naturalists not experts.


johnes81	#9 Posted on 12-09-2017 18:33
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	eyes are sparsely hairy, so I suppose bare fits as well. johnes81 attached the following image: [234.65Kb] John and Nini. Naturalists not experts.


johnes81	#10 Posted on 12-09-2017 18:34
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	palpi are black. The tiip of the palpi seems pale in certain angles with strong lighting. johnes81 attached the following image: [167.56Kb] John and Nini. Naturalists not experts.


johnes81	#11 Posted on 12-09-2017 18:34
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	ventral/underside of wings. I see a couple of places with hairs: johnes81 attached the following image: [188.22Kb] John and Nini. Naturalists not experts.


johnes81	#12 Posted on 12-09-2017 18:35
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	fore-leg johnes81 attached the following image: [87.39Kb] John and Nini. Naturalists not experts.


johnes81	#13 Posted on 12-09-2017 18:35
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	mid leg johnes81 attached the following image: [88.7Kb] John and Nini. Naturalists not experts.


johnes81	#14 Posted on 12-09-2017 18:36
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	hind leg johnes81 attached the following image: [91.47Kb] John and Nini. Naturalists not experts.


johnes81	#15 Posted on 12-09-2017 18:36
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	ovipositor johnes81 attached the following image: [95.48Kb] John and Nini. Naturalists not experts.


johnes81	#16 Posted on 12-09-2017 18:41
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	arista are definitely plumose: johnes81 attached the following image: [222.46Kb] John and Nini. Naturalists not experts.


johnes81	#17 Posted on 12-09-2017 18:42
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	abdomen has brown spots johnes81 attached the following image: [295.93Kb] John and Nini. Naturalists not experts.


johnes81	#18 Posted on 13-09-2017 00:09
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	here is a better view of the ovipositor. I find it difficult to deal with an ovipositor. sometimes my dissection is awful. I broke the end off from the ovipositor. sorry. I teach myself how to dissect, so I am not familiar with a proper procedure. at least I have photos of it these are a dorsal view of the oviposior from the en of the abdomen to the tip of the ovipositor (3 photos) plus spermathecae: johnes81 attached the following image: [130.98Kb] John and Nini. Naturalists not experts.


johnes81	#19 Posted on 13-09-2017 00:10
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	2 johnes81 attached the following image: [140.56Kb] John and Nini. Naturalists not experts.


johnes81	#20 Posted on 13-09-2017 00:10
Member Location: Berlin, Germany Posts: 1978 Joined: 15.10.16	3 johnes81 attached the following image: [90.98Kb] John and Nini. Naturalists not experts.

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