diff --git a/README.md b/README.md
index 4d88cb0..5a247e0 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ phpMyAdmin admin UI will be at http://localhost:8080
 
 - Run the app with `docker-compose up; docker-compose down;`
 - Login to playwright container with `docker exec -ti species-challenge-playwright-1 bash`
-- Run tests with `python -m pytest -v`. Add `-s` option to the end to see print outputs.
+- Run tests with `python -m pytest -v -s`. The `-s` option enables print outputs.
 
 ## OpenShift setup
 
@@ -77,6 +77,7 @@ Note that in order to create MariaDB database on Rahti, PHPMyAdmin data dump doe
 
 ### Next
 
+* Fix autocomplete-added species min/max dates being 2022-??
 * If user removes name and then trashes the participation, saving fails, and some data disappears.
     * Should removal be completely different procedure, that only UPDATES trashed = 1, and does not UPDATE anything else?
 * Trim whitespace from MX codes, both on read and write
@@ -100,6 +101,7 @@ Note that in order to create MariaDB database on Rahti, PHPMyAdmin data dump doe
     - Accessibility
     - Challenge sort order (int) for the front page - larger number shown on top
 - Later / nice:
+    - Todo if simple form fullness verification field is not enough: Calculate taxon count on frontend, make backend validate this is same as taxa with dates.
     - Show challenge days also on participation form (in case challenge is open, but challenge period has not yet started)
     - If today is not within date begin and end, don't update taxon datw by clicking taxon name (now updates, but browser validation then prevents saving)
     - Move login_url, api_url, target id yms. konfiguraatiotiedostoon
diff --git a/app/templates/form_challenge100.html b/app/templates/form_challenge100.html
index 53eeedc..076f216 100644
--- a/app/templates/form_challenge100.html
+++ b/app/templates/form_challenge100.html
@@ -187,10 +187,14 @@
                         }
 
                         // Todo: comma between fin and swe only when both exist
+
+                        // Replace . with _ in id, to be valid CSS selector
+                        const id_underscore = id.replace(/\./g, '_'); 
+
                         newLi.innerHTML = `
                                     <span class='taxon_name' title='Merkitse havaintopäivä tälle lajille'>${fin}, ${swe} (<em>${sci}</em>)</span>
-                                    <input title='Valitse havaintopäivä tälle lajille' type="date" id="${id}" name='taxa:${id}' value="" min="${min}" max="${max}">
-                                    <span class='clear_date' data-clear-for="${id}" title='Poista havaintopäivä'>❌</span>
+                                    <input title='Valitse havaintopäivä tälle lajille' type="date" id="${id_underscore}" name='taxa:${id}' value="" min="${min}" max="${max}">
+                                    <span class='clear_date' data-clear-for="${id_underscore}" title='Poista havaintopäivä'>❌</span>
                                     <a href='https://laji.fi/taxon/${id}' target='_blank' class='taxon_info' title='Lisätietoa: ${fin}'>i</a>
                                 `
 //                        taxaList.appendChild(newLi); // Append to end of list
diff --git a/tests-playwright/test_anon_user.py b/tests-playwright/test_anon_user.py
index 32d4fee..66bc19a 100644
--- a/tests-playwright/test_anon_user.py
+++ b/tests-playwright/test_anon_user.py
@@ -19,7 +19,7 @@ def test_anon_public_pages(browser):
     # Access a challenge that doesn't exist, which should redirect to front page
     page.goto("http://web:8081/haaste/99")
     assert front_page_text in page.content()
-    
+
 
 # Access pages that require login
 def test_anon_restricted_pages(browser):
@@ -50,6 +50,5 @@ def test_anon_restricted_pages(browser):
     assert "Kirjaudu ensin sisään" in page.content()
     assert front_page_text in page.content()
 
-
     page.close()
 
diff --git a/tests-playwright/test_login.py b/tests-playwright/test_login.py
index a81127a..bb88aa9 100644
--- a/tests-playwright/test_login.py
+++ b/tests-playwright/test_login.py
@@ -116,9 +116,13 @@ def test_add_edit_participation(browser):
 
     # Add taxa in different ways
     page.fill("#MX_71896", "2024-01-01") # Add by filling in the field
-    page.fill("#MX_71663", "2024-06-01") # Add by filling in the field
     page.click("#MX_73304_id") # Add by clicking the taxon name
 
+    # Add taxon by autocomplete
+    page.fill('input#autocomplete-input', 'valko')
+    page.click('#autocomplete-results > :first-child')
+    page.fill("#MX_66563", "2024-06-01") # Add by filling in the field
+
     # Submit the form
     page.click("#submit_button")
 
@@ -138,7 +142,7 @@ def test_add_edit_participation(browser):
 
     # Remove taxon in different ways
     page.fill("#MX_71896", "") # Editing field directly
-    page.click('span.clear_date[data-clear-for="MX_71663"]') # Clicking the clear button
+    page.click('span.clear_date[data-clear-for="MX_66563"]') # Clicking the clear button
 
     # Submit the form
     page.click("#submit_button")