Gallery Links
Users Online
· Guests Online: 6

· Members Online: 0

· Total Members: 4,353
· Newest Member: vdiilio
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· Renko05:05:41
· kevin_siyuan05:35:23
· Maks S06:11:52
· Mizar06:24:28
· John Carr06:38:15
· Spencer_Pote07:45:55
· Nosferatumyia08:03:00
· Steve Scholnick08:03:56
· binturong08:58:53
· Juergen Peters09:26:16
Latest Photo Additions
View Thread
Diptera.info :: Identification queries :: Other insects, spiders, etc.
Who is here? 1 guest(s)
 Print Thread
Stenocranus to ID
Rui Andrade
#1 Print Post
Posted on 17-07-2019 03:45
User Avatar

Member

Location: Portugal
Posts: 3036
Joined: 19.06.07

Hi, can someone help me identify this Stenocranus?

location: Porto (Portugal)
date: 28/06/2019
Rui Andrade attached the following image:


[82.14Kb]
 
www.flickr.com/photos/rui_andrade/
Rui Andrade
#2 Print Post
Posted on 17-07-2019 03:45
User Avatar

Member

Location: Portugal
Posts: 3036
Joined: 19.06.07

.
Rui Andrade attached the following image:


[93.85Kb]
 
www.flickr.com/photos/rui_andrade/
Rui Andrade
#3 Print Post
Posted on 17-07-2019 03:46
User Avatar

Member

Location: Portugal
Posts: 3036
Joined: 19.06.07

.
Rui Andrade attached the following image:


[110.42Kb]
 
www.flickr.com/photos/rui_andrade/
Rui Andrade
#4 Print Post
Posted on 17-07-2019 03:46
User Avatar

Member

Location: Portugal
Posts: 3036
Joined: 19.06.07

.
Rui Andrade attached the following image:


[134.79Kb]
 
www.flickr.com/photos/rui_andrade/
Rui Andrade
#5 Print Post
Posted on 17-07-2019 03:46
User Avatar

Member

Location: Portugal
Posts: 3036
Joined: 19.06.07

.
Rui Andrade attached the following image:


[53.56Kb]
 
www.flickr.com/photos/rui_andrade/
Rui Andrade
#6 Print Post
Posted on 19-07-2019 05:27
User Avatar

Member

Location: Portugal
Posts: 3036
Joined: 19.06.07

Is it impossible from pictures?
 
www.flickr.com/photos/rui_andrade/
johnes81
#7 Print Post
Posted on 19-07-2019 10:06
User Avatar

Member

Location: Berlin, Germany
Posts: 1903
Joined: 15.10.16

according to German fauna, this should be S. major but you may have others in Portugal.

the fore tibia is not apically broadened so we can eliminate S. longipennis. The head is not elongated and the face stripes are black, so we can eliminate S. minutus. I believe that S. fuscovittatus has a stripe on the foretibia and not two thin stripes. None-the-less, I think it should be S. major. genitalia of the male can be used for a positive id. Otherwise, you will need the opinion of an expert for certainty.

considering that i don't have a specimen, based upon these photos i call it S. major.
John and Nini. Naturalists not experts.
 
johnes81
#8 Print Post
Posted on 19-07-2019 10:19
User Avatar

Member

Location: Berlin, Germany
Posts: 1903
Joined: 15.10.16

sorry, i didn't have my reading glasses. i see now that the tibia is only mentioned for males.

i still think that S. major is most likely the species.

here are some reliable photos for you to view. You should bookmark this site for other cicadas.

Stenocranus major
http://gallery.kunzweb.net/main.php?g2_itemId=15443

Stenocranus fuscovittatus
http://gallery.kunzweb.net/main.php?g2_itemId=16633

Stenocranus minutus
http://gallery.kunzweb.net/main.php?g2_itemId=15445

John and Nini. Naturalists not experts.
 
Rui Andrade
#9 Print Post
Posted on 19-07-2019 13:51
User Avatar

Member

Location: Portugal
Posts: 3036
Joined: 19.06.07

Thank you! Smile According to Fauna Europaea Germany has all the European Stenocranus except S. gialovus (known only from Greece). S. major is not known from France, Spain and Portugal, so I wonder how likely it is for this species to be found here (FE may be outdated). But I have looked at the british key ( https://www.royen...Part03.pdf ) and I agree that it looks like S. major.

And thank you also for the links (site bookmarked)! The photos are great and indeed my specimen is more similar with the photo of S.major. Smile
 
www.flickr.com/photos/rui_andrade/
johnes81
#10 Print Post
Posted on 19-07-2019 14:21
User Avatar

Member

Location: Berlin, Germany
Posts: 1903
Joined: 15.10.16

Hello Rui, i really think that it is S. major and that, then, will be a first record for Portugal. In this case, you should definitely consult an expert. I consider the leading experts to be Herbert Nickel and Rolf Niedringhaus. I have a copy of The Plant- and Leafhoppers of Germany and Fotoatlas of the cicadas of Germany (which uses photos from Gernot Kunz. The site that you bookmarked is his and it is accurate/reliable data.) Another site worth mentioning is BritishBugs, which is very reliable as well.

My books have the following species listed for Germany and subsequently i have keys.genitalia for them:

S. major, S. minutus, S. longipennis and S. fuscovittatus.

The identification keys contain drawings of genitalia for males only but the head in profile is used along with the foretibia of the males. You have a perfect lateral/profile view of the head and it does not look elongated but the longitudinal stripes are black. Thus you can eliminate S. minutus. S. minutus is said to reach lengths of 5.8mm. S. major is between 5.4-6.7mm, so larger than S. minutus.

S. major is listed to be found at watersides, moist ruderals and forest mires. I guess it prefers moist habitats. Nickel mentions it can be found on Phalaris arundinacea plant.

I think that it should be in Portugal, so strange that it isn't listed. Definitely write to an expert for confirmation. You could always send a leg in for dna sampling. I am not an expert but it sure looks like S. major to me.

always happy to help Smile

edit:
another site with info about Old World species also has a key from Beamer:
http://canr.udel.edu/planthoppers/north-america/north-american-delphacidae/genus-stenocranus-fieber-1866/

I don't think that it matches those listed but i'm not an expert yet/ I love cicadas and i enjoy photographing them. I've only identified 20 or so by genitalia because i spend more time with diptera.
Edited by johnes81 on 19-07-2019 14:26
John and Nini. Naturalists not experts.
 
Rui Andrade
#11 Print Post
Posted on 19-07-2019 14:55
User Avatar

Member

Location: Portugal
Posts: 3036
Joined: 19.06.07

The specimen was collected near a lake, so the habitat fits with what is known for S. major.

Thanks for the new link, I'll have a look.

And I'll follow your suggestion and contact an expert. Once again many thanks for your help, John and Nini! Smile
 
www.flickr.com/photos/rui_andrade/
johnes81
#12 Print Post
Posted on 19-07-2019 16:34
User Avatar

Member

Location: Berlin, Germany
Posts: 1903
Joined: 15.10.16

it is better to ask an expert in this case. the longitudinal stripes are very dark, too dark for minutus as i understand. I hope that you have major and a first record. H. Nickel is known to help id by photo. I wish that i could be certain but i don't have Stenocranus yet.
John and Nini. Naturalists not experts.
 
Jump to Forum:
Date and time
19 January 2020 07:55
Login
Username

Password



Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.
Temporary email?
Due to fact this site has functionality making use of your email address, any registration using a temporary email address will be rejected.

Paul
Donate
Please, help to make
Diptera.info
possible and enable
further improvements!
Latest Articles
Syrph the Net
Those who want to have access to the Syrph the Net database need to sign the
License Agreement -
Click to Download


Public files of Syrph the Net can be downloaded HERE

Last updated: 25.08.2011
Shoutbox
You must login to post a message.

23.12.19 23:36
thx Paul! All is OK! Merry Xmas to All!

04.12.19 10:23
Thx! TumbsUp

04.12.19 09:33
There are some internal issues withy their servers and they are working on it.

02.12.19 08:42
Anyone knows what happened with the Catalog of Fossil Diptera at the bishopmuseum.org webpage? Cannot access it Frown

01.11.19 22:46
Hi! may I ask, why the soldierfly banner (https://www.dipte
ra.info/images/sol
dierfly-banner.png
) is so big (4790x870 Pixels, 1, 4 M Cool? It always lasts minutes to load on a slow connection and costs a

18.09.19 20:06
Jewell699, you should post it in the forum, not submit it for the gallery.

15.09.19 20:41
Jewelm699 - did you upload it to a forum (which one?) or the gallery? I can't find it.

11.09.19 13:15
I’m hoping someone can identify the phoridae maggot or pupae I just uploaded.

28.08.19 14:29
Rafael p is legs and f1 is fore femur

26.08.19 17:13
If you experienced a very sluggish site recently, it may have been because someone tried to upload a maliciuous script by force. It appears to have failed. The visitor was blocked further access.

Render time: 6.16 seconds | 143,627,950 unique visits