Euthyrhynchus Bug
(Common Name)
Beneficial Predator
(General Category)
(Taxonomic Classification)
Euthyrhynchus floridanus
(Scientific Name)

Euthyrhynchus adult with rollover ID charactersEuthyrhynchus nymph with rollover ID characters

Description: This very distictive irridescently colored predator can be easily distinguished frrom other predatory stinkbugs, It is also a generalist predator, meaning it's not a picky eater.  Like all true bugs (Hemiptera) these predators have a beak.  To feed, they swing their beaks up from under their bodies, sneak up to their prey and jab them with the harpoon-like tips.  They inject digestive enzymes through the beak that soon render the prey immobile, after which they suck up the digested insides. 

Identification:  Rollover pictures with mouse for tips on how to identify these predators. Adults: Distinctive iridescent purple-black coloration on legs and bodies, as well as three orange to red spots on the top of the abdomen. The “shoulders” also have spines like spined soldier bugs. Like all predatory stinkbugs, Euthyrhynchus bugs have beaks that are at least twice as thick as their antennae (Click here to COMPARE).  Nymphs: No wings. Beaks like adults. The overall shape is rounded with a somewhat flattened underside. Distinctive purple-black legs and body with an orange or red area on top of the abdomen.

Value in Pest Management: These predatory stinkbugs feed on a variety of plant feeding insects, including some that are pests. Because they’re less abundant than spined soldier bugs, they likely do not contribute as much to natural control. They are not sold commercially.

Origin and Distribution:  Native, throughout southeastern United States (

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