predatory stink bug
(Podisus placidus)
| Conservation Status | IUCN Red List |
not yet assessed |
No Image Available |
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NatureServe |
NR - Unranked |
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Minnesota |
not listed |
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| Occurrence | Common in northern United States and southern Canada |
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| Flight/Season | Mid-April through late October |
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| Habitat |
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| Size | Total Length: ¼″ to 7 ⁄16″ |
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| Identification | This is a relatively small, ¼″ to 7 ⁄16″ (7.5 to 11 mm) long, predatory stink bug. The adult is lighter in color than other Podisus species. The plate over the first thoracic segment (pronotum) has broadly rounded projections on both sides. The sides of the pronotum are straight, not concave. The plate over the second thoracic segment (scutellum) is large, triangular, and mottled dull yellow. The end (posterior) of the abdomen is almost triangular. First stage (instar) nymphs are black and red. On the fourth and fifth instars, the upper (dorsal) abdominal pattern has a bold white outline that extends to the the margin. The abdomen and pronotum have white edges. |
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| Similar Species |
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| Larval Food | First instar nymphs feed on plant juices |
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| Adult Food | Mostly butterfly and moth larvae (caterpillars) and sawfly larvae |
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| Life Cycle | Adults emerge from hibernation in mid-April and begin mating in May. The femals lays eggs in a mass, one egg mass per day, on the underside of a plant leaf. The eggs hatch in about 6 days. They pass through five instars in 25 to 30 days before reaching the adult stage. Adults overwinter. |
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| Behavior |
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| Distribution | .png "Distribution Map") |
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| Comments |
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| Taxonomy | Order: |
Hemiptera (true bugs, cicadas, hoppers, aphids and allies) |
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Euhemiptera |
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Neohemiptera |
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Prosorrhyncha |
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Suborder: |
Heteroptera (true bugs) |
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Euheteroptera |
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Neoheteroptera |
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Panheteroptera |
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Infraorder: |
Pentatomomorpha |
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Superfamily: |
Pentatomoidea |
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Family: |
Pentatomidae (stink bugs) |
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Subfamily: |
Asopinae (predatory stink bugs) |
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Genus: |
Podisus |
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Subgenus: |
Podisus |
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| Synonyms |
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| Common Names |
Though common, neither the species nor the genus has a common name. The common name of the subfamily Asopinae is predatory stink bugs, and is applied here for convenience. |
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Glossary
Instar
The developmental stage of arthropods between each molt; in insects, the developmental stage of the larvae or nymph.
Pronotum
The saddle-shaped, exoskeletal plate on the upper side of the first segment of the thorax of an insect.
Scutellum
The exoskeletal plate covering the rearward (posterior) part of the middle segment of the thorax in some insects. In Coleoptera, Hemiptera, and Homoptera, the dorsal, often triangular plate behind the pronotum and between the bases of the front wings. In Diptera, the exoskeletal plate between the abdomen and the thorax.
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| Crystal Boyd 6/10 and 6/11/2013 |
Location: Uncas Dunes SNA |
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