COROICO, BOLIVIA — “We need dark nights—they don’t come when the moon is out,” Reynaldo Zambrana explains. “First comes the female, and then the male. One must run to grab them before ...

In Hong Kong alone, around 10,000 beetle species thrive, including stag beetles, scarab beetles, and leaf beetles. Yiu Vor finds them all fascinating. Yiu is chairman of the Hong Kong ...

In general, he looks for brightly hued specimens, butterflies in pristine condition, and little scarab beetles such as June bugs, which, unlike some larger beetles, lack the impressive jaws that ...