predatory stink bug

(Podisus placidus)

               
Conservation Status

IUCN Red List

not yet assessed

 

No Image Available

NatureServe

NR - Unranked

Minnesota

not listed

Occurrence

Common in northern United States and southern Canada

Flight/Season

Mid-April through late October

Habitat

 

Size

Total Length: ¼ to 7 16

 

Identification

This is a relatively small, ¼ to 7 16 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.

 
Similar
Species

 


Larval Food

First instar nymphs feed on plant juices

 
Adult Food

Mostly butterfly and moth larvae (caterpillars) and sawfly larvae

 
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.

 
Behavior

 


Distribution Distribution Map  

Sources: 7, 27, 29, 30.


Comments

No Common Name
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 the sake of convenience.


Taxonomy

Order:

Hemiptera (true bugs, cicadas, hoppers, aphids and allies)

 

No Rank:

Euhemiptera

 

No Rank:

Neohemiptera

 

No Rank:

Prosorrhyncha

 

Suborder:

Heteroptera (true bugs)

 

No Rank:

Euheteroptera

 

No Rank:

Neoheteroptera

 

No Rank:

Panheteroptera

 

Infraorder:

Pentatomomorpha

 

Superfamily:

Pentatomoidea

 

Family:

Pentatomidae (stink bugs)

 

Subfamily:

Asopinae (predatory stink bugs)

 

Genus:

Podisus

 

Subgenus:

Podisus

 
Synonyms

 

 
Common
Names

no common name


 

 

 

 

 

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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