unknown orange and black beetle
Location: northern california central valley
August 21, 2011 11:39 pm
Hi, I’ve come across 3 of these bugs in my establishment in the past two days. My son tried picking one up and it either stung or bit him with excruciating pain. These bugs can fly and only seem to appear in the evening.
This is an Assassin Bug known as a Western Corsair or Orange Spotted Assassin Bug, Rasahus thoracicus. Most Assassin Bugs are not aggressive, but they are predators and they are capable of biting humans with their mouths adapted for piercing and sucking fluids from prey. According to BugGuide: “The western corsair feeds primarily on other insects and does not seek out warm-blooded animals or require a blood meal in order to reproduce. However, if it is picked up, it can inflict a bite that is quite painful.”