Dear Vytautas, this should be Myrmedobia distinguenda I know it from my leaf litter siftings.

Usable keys should be found inside the older works of Stichel: Stichel W (1955–1962) Illustrierte Bestimmungstabellen der Wanzen, II. Europa (Hemiptera, Heteroptera Europae). Bände 1-5. Vol. 1 (1955): 1–168. Vol. 2 (1956–58): 169–907, Vol. 3 (1958–60): 1–428, Vol. 4 (1957–62): 1–838, Vol. 5 (1962): 1–110. Berlin-Hermsdorf. [in German]

Best regards, Thomas

Dear Thomas,

thank you very much for your help. 

Best wishes

Vytautas

Dear , Vytautas Tamutis 

I agree with Sir Thomas Hörren response..

With my best regards

Dear Yehya Salih,

thank you for comment. Yes, indeed, it is M. distiguenda, first time recorded from Lithuania.

Best regards

Vytautas

Hi Vytautis Tamutis

Some useful references for identify this species

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwip1LXao7bYAhXGYlAKHeFoCPsQFggrMAE&url=http%3A%2F%2Fwww.bio.vsu.ru%2Fheteroptera%2Fprofile_kanyukova%2Fkanyukova_pdf%2F2006%2520-%2520A%2520checklist%2520of%2520Heteroptera%2520of%2520the%2520Kuril%2520Islands%2520and%2520brief.pdf&usg=AOvVaw1jWxORFJnR4t6FJMUaU6I8

2

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&uact=8&ved=0ahUKEwip1LXao7bYAhXGYlAKHeFoCPsQFggzMAI&url=http%3A%2F%2Feprints.lib.hokudai.ac.jp%2Fdspace%2Fbitstream%2F2115%2F47799%2F1%2Fv.%25202-10.pdf&usg=AOvVaw3NAIveZ2FnqHHoc4REcRgR

3

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&cad=rja&uact=8&ved=0ahUKEwip1LXao7bYAhXGYlAKHeFoCPsQFgg4MAM&url=http%3A%2F%2Flink.springer.com%2Fcontent%2Fpdf%2F10.1134%252FS0013873817020063.pdf&usg=AOvVaw34jcHXV0lGcQvFoPvF3jBW

4

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=5&cad=rja&uact=8&ved=0ahUKEwip1LXao7bYAhXGYlAKHeFoCPsQFgg6MAQ&url=https%3A%2F%2Facademic.oup.com%2Fbiolinnean%2Farticle-pdf%2F18%2F3%2F279%2F14075621%2Fj.1095-8312.1982.tb02040.x.pdf&usg=AOvVaw0FVQYxvxGqXoeXzu5rW85s

5

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=6&cad=rja&uact=8&ved=0ahUKEwip1LXao7bYAhXGYlAKHeFoCPsQFghCMAU&url=http%3A%2F%2Fwww.tombio.uk%2F%3Fq%3Dfullscreen%2Fhetatlas&usg=AOvVaw3-Ra2eWJpipc-uhlFTu6qy

6

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&cad=rja&uact=8&ved=0ahUKEwip1LXao7bYAhXGYlAKHeFoCPsQFghJMAY&url=https%3A%2F%2Fwww.britishbugs.org.uk%2Fsystematic_het.html&usg=AOvVaw2HLKn6oqcMVEW72AP8tE1t

7

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=8&cad=rja&uact=8&ved=0ahUKEwip1LXao7bYAhXGYlAKHeFoCPsQFghPMAc&url=http%3A%2F%2Feol.org%2Fpages%2F13998%2Fdetails&usg=AOvVaw3IoEOaDEl-oKBI8Pd_9oi7

8

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=9&cad=rja&uact=8&ved=0ahUKEwip1LXao7bYAhXGYlAKHeFoCPsQFghVMAg&url=https%3A%2F%2Fwww.flickr.com%2Fgroups%2F301751%40N25%2Fdiscuss%2F72157601397659634%2F&usg=AOvVaw3CsBm2O10ghkBB7v1gUfGt

9

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=10&cad=rja&uact=8&ved=0ahUKEwip1LXao7bYAhXGYlAKHeFoCPsQFghbMAk&url=http%3A%2F%2Fv3.boldsystems.org%2Findex.php%2FTaxbrowser_Taxonpage%3Ftaxid%3D365828&usg=AOvVaw00CquRI6ETZuWqbj-OUFPF

10

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=11&cad=rja&uact=8&ved=0ahUKEwj8kd6qprbYAhVCaFAKHbszBvE4ChAWCCYwAA&url=https%3A%2F%2Farchive.org%2Fstream%2Flistofintercepte1960unit%2Flistofintercepte1960unit_djvu.txt&usg=AOvVaw3dPEXXYb5YiBweBtqaXuw4

11

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=12&cad=rja&uact=8&ved=0ahUKEwj8kd6qprbYAhVCaFAKHbszBvE4ChAWCCswAQ&url=http%3A%2F%2Fizan.kiev.ua%2Fukrbin%2Fdownloads.php%3Fcatid%3D0%26showfile%3D22&usg=AOvVaw2fyjs3eCR_m21e1pW0v0Tx

12

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=13&cad=rja&uact=8&ved=0ahUKEwj8kd6qprbYAhVCaFAKHbszBvE4ChAWCC8wAg&url=http%3A%2F%2Fizan.kiev.ua%2Fukrbin%2Fdownloads.php%3Fgetfile%3D17&usg=AOvVaw1ETi8sgd-GNFbBEdmzDX4z

13

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=14&cad=rja&uact=8&ved=0ahUKEwj8kd6qprbYAhVCaFAKHbszBvE4ChAWCDQwAw&url=http%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.631.926%26rep%3Drep1%26type%3Dpdf&usg=AOvVaw0rdZAzrCQ85N7ulBOiXGtf

14

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=15&cad=rja&uact=8&ved=0ahUKEwj8kd6qprbYAhVCaFAKHbszBvE4ChAWCDwwBA&url=http%3A%2F%2Fresearch.amnh.org%2Fpbi%2Flibrary%2F4070.pdf&usg=AOvVaw2OhYcVg7cZo8_tBLXbaXyu

15

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=16&cad=rja&uact=8&ved=0ahUKEwj8kd6qprbYAhVCaFAKHbszBvE4ChAWCEEwBQ&url=http%3A%2F%2Fwww2.eastriding.gov.uk%2FEasySiteWeb%2FGatewayLink.aspx%3FalId%3D105217&usg=AOvVaw3L2te3tkwFbvdTGr0Irwqj

16

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=17&cad=rja&uact=8&ved=0ahUKEwj8kd6qprbYAhVCaFAKHbszBvE4ChAWCEgwBg&url=http%3A%2F%2Fwww.cisfbr.org.uk%2FDocuments%2FCornish%2520Hemiptera%2520review.pdf&usg=AOvVaw3zKpKHCiWB9kPAvv5UFRS7

17

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=18&cad=rja&uact=8&ved=0ahUKEwj8kd6qprbYAhVCaFAKHbszBvE4ChAWCE0wBw&url=http%3A%2F%2Fworldtransportjournal.com%2Fwp-content%2Fuploads%2F2017%2F12%2F23.3-4opt.pdf&usg=AOvVaw0zEGxtqKIH5vFfQgbl05xR

18

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=19&cad=rja&uact=8&ved=0ahUKEwj8kd6qprbYAhVCaFAKHbszBvE4ChAWCE8wCA&url=http%3A%2F%2Fpublications.naturalengland.org.uk%2Ffile%2F82015&usg=AOvVaw2h2nH-nWAshKypu6QV9_zi

19

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=20&cad=rja&uact=8&ved=0ahUKEwj8kd6qprbYAhVCaFAKHbszBvE4ChAWCFQwCQ&url=http%3A%2F%2Fwww.bnhs.co.uk%2Ffocuson%2Fjournals%2Fpdfs%2FBedsNats%25201977%2520No%252032.pdf&usg=AOvVaw0wfyGW_GV34qHPgOlySw_v

20

http://bhl-china.org/bhldatas/pdfs/t/tijdschriftvoore1989nede.pdf

Many thanks dear Laith Al-Ani for useful links.

Best regards

Vytautas