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Texas Invasive Species Institute

Texas Invasive Species Institute


Diaphorina citri

Asian Citrus Psyllid

Diaphorina citri are small brownish insects, growing to only about 1/8 inch in length, and usually feed on the underside of leaves. They feed with their heads down almost touching the surface ...
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Belocaulus angustipes

Black Velvet Leatherleaf slug

This terrestrial slug is from the family Veronicellidae (leatherleaf slugs) andcan grow up to 3.5 inches in length. As the common name suggest, this slug is typically jet black with an inconspicuous tan stripe down the underside. They have two ocular tentacles that are also black. The velvety/wrinkled ...
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Xyleborus glabratus

Redbay Ambrosia beetle

Adult Description: The redbay ambrosia beetle (Xyleborus glabratus) is a dark colored, bullet shaped beetle with small puncture-like dents covering the elytra, and is 2 mm long when mature. The redbay ambrosia beetle is a member of the family Curculionidae along with weevils, ...
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Osteopilus septentrionalis

Cuban Treefrog

The non-native Cuban treefrog is the largest treefrog in the United States. Most adults are typically 1-4 inches long, but females may grow to 6 inches or more. The skin is warty like a toad but, unlike toads, they have adhesive toepads. The skin on the head of Cuban treefrogs is fused to the skull—...
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Angiostrongylus cantonensis

Eosinophilic Meningitis-causing Nematode

Illness from A. cantonensis usually lasts between 2-8 weeks but can last longer. What makes this nematode such a threat is that the symptoms of A. cantonensis infection often looks like other diseases such as bacterial meningitis. Symptoms include nausea, vomiting, neck stiffness, and ...
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Melanaphis sacchari

Sugarcane Aphid

Adults are very small, soft-bodied, wingless, oblong and light green to pale yellow cornicles (tube like structures on the dorsal side of the abdomen). Some wingless individuals can have black markings on their dorsal side. Nymphs resemble adults but are smaller and can be whitish when very ...
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Bagrada hilaris

Bagrada bug

Adult Description: Bagrada hilaris, is a colorful “true bug” from the family Pentatomidae that feeds on the fluids of several plant species. Overall, the insects are quite small, reaching lengths of 5-7mm with females (pictured left) being much larger than males (pictured right). ...
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