Here are 50 of ~10K species that have no image on Wikidata, but a Flickr free image hit for their name.
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Q2572671 
Clathria arborescens
n809_w1150
Flickr2Commons
Q2488852 
Argiope mangal
St Andrews cross spider. Argiope mangal?
Flickr2Commons
Q655983 
Mycobacterium vaccae
Playing in mud can make you smarter
Flickr2Commons
Q14528780 
q2
Ciclismo y Mañanitas DB (3)
Flickr2Commons
Q2797443 
Chelonodon patoca
n122_w1150
Flickr2Commons
Q4488287 
grunwald
Winter evening yellow III
Flickr2Commons
Q2852284 
Anomalopus leuckartii
Two-clawed Worm-skink (Anomalopus leuckartii)
Flickr2Commons
Q4460562 
Dracula simia
Marcus Parcus, Ex Libris
Flickr2Commons
Q2210709 
Oak forest salamander
Point Imperial, North Rim, Grand Canyon National Park (22)
Flickr2Commons
Q1088588 
Chirolophis ascanii
n356_w1150
Flickr2Commons
Q2559967 
Gnaphosa lugubris
Hunting Spider
Flickr2Commons
Q12671817 
Hygrophorus discoideus
Hygrophorus discoideus
Flickr2Commons
Q2551995 
Evolenes
Evolene to St Martin Walk
Flickr2Commons
Q2667631 
Rusty Whistler
barker_20120711_7197
Flickr2Commons
Q5054475 
Caulanthus californicus
Caulanthus sp
Flickr2Commons
Q143349 
Argyroxiphium virescens
starr-110502-5411-plant-Argyroxiphium_sandwicense_x_virescens-flowering_habit_with_Kim_in_greenhouse-Olinda_Rare_Plant_Nurser
Flickr2Commons
Q1169712 
Helophorus grandis
n20_w1150
Flickr2Commons
Q1770020 
Peters's squirrel
Untitled
Flickr2Commons
Q7779671 
Conocephalus chinensis
Conocephalus chinensis? (Matsudo, Chiba, Japan)
Flickr2Commons
Q2223145 
Sectator ocyurus
Mixed school of fish, probably striped chub (Kyphosus analogus) and rainbow chub (Sectator ocyurus), Galapagos Islands, Ecuador
Flickr2Commons
Q897746 
Poblano
Mole poblano, dark mole chicken, onions, cheese, seed salsa
Flickr2Commons
Q13230541 
Hexaplax megalops
n128_w1150
Flickr2Commons
Q2551107 
Zaglossus robustus
Echidna
Flickr2Commons
Q4361003 
Splendid sea perch
Marina Beach, Chennai
Flickr2Commons
Q1989964 
Brooding anemone
Wirral Way
Flickr2Commons
Q736603 
Caucasian mole
San Diego, CA
Flickr2Commons
Q303850 
Western Water Rat
Grassy Dune
Flickr2Commons
Q1522419 
Yellow Barb
Bidens pilosa head4
Flickr2Commons
Q4036155 
Chlorophyllum brunneum
Großknolliger Safranschirmling (Chlorophyllum brunneum)
Flickr2Commons
Q2090201 
Sandpaper fish
Pufferfish (Tetraodontidae)
Flickr2Commons
Q2045455 
Pachyphytum compactum
Pachyphytum compactum sticking
Flickr2Commons
Q7207620 
Pogogyne floribunda
Pogogyne floribunda #21276
Flickr2Commons
Q13381474 
Apamea arabs
Syria 2007 053 Apamea (Greek: Απάμεια, Apameia; Arabic: آفاميا‎, Afamia)
Flickr2Commons
Q2806106 
Bryaninops loki
Goby on Whip Coral
Flickr2Commons
Q1848902 
Calyptomerus dubius
Calyptomerus dubius
Flickr2Commons
Q5054195 
Catulus
n6_w1150
Flickr2Commons
Q5228651 
Spathoglottis paulinae
Spathoglottis - my first garden orchid ! (2 photos)
Flickr2Commons
Q1129703 
Hakonechloa macra
hakonechloa Macra 'Aureola'
Flickr2Commons
Q4269895 
Claviporella pulchra
n345_w1150
Flickr2Commons
Q2613144 
Discomycetes
Ascobolus foliicola
Flickr2Commons
Q5079450 
Rhinogecko misonnei
Rhinogecko_misonnei_by_Omid_Mozaffari (6)
Flickr2Commons
Q10296218 
Acer insulare
2010-05-30 156 01
Flickr2Commons
Q6882084 
Mitra fraga
Mitra fraga
Flickr2Commons
Q3392679 
Pluot
Pluot lambic sorbet
Flickr2Commons
Q389090 
Rough Ridged Frog
Taal volcano crater
Flickr2Commons
Q5234044 
Mithraculus cinctimanus
Anemone Crab - Mithraculus cinctimanus
Flickr2Commons
Q10736103 
Atomosia puella
A tiny Robber Fly (Atomosia puella, I think) (7-24-13) Lutherville-Timonium, Baltimore Co.
Flickr2Commons
Q514574 
Prickly Pear Island snail
Prickly Pear with Snail
Flickr2Commons
Q1351107 
Hyposmocoma ekemamao
Native Purse-shaped Moths - Laysan
Flickr2Commons
Q1261866 
Plumbeous-crowned Tyrannulet
Phyllomyias sp.
Flickr2Commons
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