Harmostes reflexulus

Scentless Plant Bugs
Harmostes reflexulus, Scentless Plant Bugs, Rhopalidae


Family: Rhopalidae

Subfamily: Rhopalinae

Tribe: Harmostini

Length: 7.0 - 9.5 mm


Yonke and Walker (1970) spent more than two years observing a population of Harmostes reflexulus in the field and raising the bugs in the laboratory.

In their field studies in Missouri, they found that Harmostes reflexulus was bivoltine. The species moved from host plant to host plant as one species of flower began to fade and another began to open.

Females usually laid eggs singly on the disk flower on top of the ovary. In the laboratory, the hatch rate was better than 90 percent. In most cases it took 20-24 days to progress from egg to adult.

Of the adult bugs taken into the laboratory, Yonke and Walker found that about 16% of them had been parasitized, usually by the Tachinid fly Leucostoma acirostre, but sometimes by a wasp, Telenomus sp.

Thomas Say described both Harmostes reflexulus and Harmostes fraterculus in his 1831 work, "Descriptions of New Species of Heteropterous Hemiptera of North America." Of the former species, he stated, "Head not extending more than half the basal joint of the antennae." Of the latter, H. fraterculus: "Anterior point of the head extending nearly to the tip of the first joint of the antennae."

Harmostes reflexulus, Lateral view

Above: Not the usual habitat of Harmostes reflexulus, the knee of Homo sapiens.

Countries reporting Harmostes reflexulus:

Harmostes reflexulus, countries map

Map, Harmostes reflexulus

A note about our maps

American Insects site