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Red-shouldered Bug

Jadera haematoloma


Dark gray bug with red eyes and shoulders.


Spotted on Goldenrod in an overgrown meadow.


Adults and larvae tend to feed in groups, and favor developing seeds and fruits of their favored hosts, but will also suck sap from foliage, flowers, buds, or oozing stems. They feed on a variety of plants primarily in and related to the family Sapindaceae. Favorites include Balloonvine (Cardiospermum species) and Goldenrain Tree (Koelreuteria sp.), both in Sapindaceae, and they regularly use Soapberry (Sapindus sp.; Sapindaceae) and Maple/Boxelder (Acer sp.; Aceraceae). Additionally, reported on a variety of other plants, especially feeding on fruit, including Chinaberry (Melia azedarach; Meliaceae), Fig (Ficus spp.; Moraceae), Althaea (Malvaceae), Plum, Cherry, & Peach (Prunus sp.; Rosaceae), Apple (Malus sp.; Rosaceae), Grape (Vitis sp.; Vitaceae), Ash (Fraxinus sp.; Oleaceae), etc. Adults sometimes gather around human food leftovers and other smashed insects to feed as well.

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1 Comment

MattheauComerford 5 months ago

Hi Brian38, I am a biologist from Rice University. I would like your permission to use this image of jadera haematoloma on goldenrod for a figure in a manuscript that I am writing. If allowed, how would you like me to cite you in the figure caption? My email is
Thank you,
Mattheau Comerford

Spotted by

Arkansas, USA

Spotted on Sep 11, 2018
Submitted on Oct 8, 2018

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