Sites, Robert W. 2015. “New Taxa of Cryphocricinae (Heteroptera: Naucoridae) from the Guiana Shield: Hygropetrocoris Sites, N. Gen. and Two New Species of Ambrysus Stål ”. Zootaxa 4033 (3). Auckland, New Zealand:427–438. https://doi.org/10.11646/zootaxa.4033.3.7.