This image is reblogged from this 10 May 2015 post at Infernal Wonders. A note from the source tumblr indicates that it is a detail from the cover of a 1970s Spanish comic Escorpión, issue #28. I couldn’t find too much about this publication, but its entry in the Grand Comics Database indicates that it was published in 1973 and 1974. They don’t have many covers, but those that they do have suggest that scantily-clad women being menaced by giant invertebrates was a repeat thing.