Gargaphia arizonica

Drake & Carvalho, 1944

Gargaphia arizonica is a lace bug in the Tingidae, described by Drake & Carvalho in 1944. The species has been evaluated as a potential agent for the weed Solanum elaeagnifolium (silverleaf nightshade). Field studies indicate strong fidelity to this plant, with limited survival on related Solanum crops.

Gargaphia arizonica by (c) Elliott Gordon, some rights reserved (CC BY), uploaded by Elliott Gordon. Used under a CC-BY license.

Gargaphia arizonica by the Smithsonian. Used under a CC0 license.

Pronunciation

How to pronounce Gargaphia arizonica: /ɡɑrˈɡæfiə ˌærɪˈzoʊnɪkə/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

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Habitat

Associated with Solanum elaeagnifolium in agricultural and rangeland settings. As a herbivore of this plant, occurrence is tied to plant distribution.

Distribution

Recorded from Central America and North America. Distribution records include Arizona, New Mexico, and Texas in the United States.

Diet

Feeds on Solanum elaeagnifolium (silverleaf nightshade). Laboratory studies show nymphs can feed on eggplant (Solanum melongena) and potato (Solanum tuberosum), but survival and damage are substantially reduced compared to the preferred .

Host Associations

Solanum elaeagnifolium - primary Preferred plant; strong fidelity observed in field conditions
Solanum melongena - potential Eggplant; nymphs can feed but with reduced survival and damage
Solanum tuberosum - potential Potato; nymphs can feed but with reduced survival and damage

Ecological Role

Potential agent for Solanum elaeagnifolium. Field studies suggest relatively low biosecurity risk due to specificity.

Human Relevance

Evaluated as a candidate agent for silverleaf nightshade, a serious agricultural weed worldwide. Compared to Leptinotarsa texana, another candidate agent, G. arizonica shows greater specificity and lower risk to non-target crops.

Similar Taxa

Leptinotarsa texanaBoth evaluated as biocontrol agents for Solanum elaeagnifolium; G. arizonica shows greater specificity with lower risk to eggplant and potato
Corythaica cyathicollisAnother lace bug on Solanaceae; differs in geographic distribution and specific associations within the

More Details

Biocontrol evaluation

A 2-year field study found G. arizonica feeding exclusively on Solanum elaeagnifolium when planted alongside eggplant and potato, whereas no-choice laboratory experiments revealed limited ability to use these alternative with substantially reduced nymph survival.