The API Documentation entry points for Anopheles Funetus and Anopheles Minimus in the index of the documentation seem to have broken image links to wikimedia.

After further investigation it seems that wikimedia has a recommendation to use one of these values for the width of a requested thumbnail:
20, 40, 60, 120, 250, 330, 500, 960, 1280, 1920, 3840
Source
So the link should be changed to use the closest recommeneded value to 640px which is 500.