Spined Assassin Bug

Sinea diadema

Classification

Pronunciation

How to pronounce Sinea diadema: /ˈsɪniə daɪəˈdiːmə/

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

Images

Sinea diadema P1130630b by 
xpda. Used under a CC BY-SA 4.0 license.
Sinea diadema, 1963-07-04, Stevens Creek area, Santa Clara County, CA, USA by Ken-ichi Ueda. Used under a CC0 license.
Sinea diadema P1130632a by 
xpda. Used under a CC BY-SA 4.0 license.
Spined Assassin Bug - Sinea diadema, Julie Metz Wetlands, Woodbridge, Virginia by Judy Gallagher. Used under a CC BY 2.0 license.
Sinea diadema, 1963-07-04, Stevens Creek area, Santa Clara County, CA, USA, lateral view by Ken-ichi Ueda. Used under a CC0 license.
Sinea diadema, 1963-07-04, Stevens Creek area, Santa Clara County, CA, USA, labels by Ken-ichi Ueda. Used under a CC0 license.

Summary

Sinea diadema, commonly known as the Spined Assassin Bug, is a predatory insect known for its spiny appearance and habitat in fields and grasslands across North America.

Physical Characteristics

10-15 mm; head, thorax (middle part), and front leg (upper portion) are covered with spines.

Identification Tips

Commonly identified by their spiny appearance and size range.

Habitat

Weedy fields and meadows; typically found in grasslands, gardens, and fields associated with goldenrod.

Distribution

Transcontinental across North America (NS-NT-BC & throughout the US).

Diet

Preys on small bugs and beetles; waits for prey to come by often on blossoms and approaches prey to capture.

Life Cycle

Bivoltine; eggs overwinter with nymphs emerging in mid-April and adults present from the third week of May until early October.

Reproduction

Females can lay up to 412 eggs in clusters under laboratory conditions.

Ecosystem Role

Predator of small bugs and beetles, potentially controlling their populations.

Cultural Significance

The name 'sinea' comes from Hebrew meaning thorn bush or burning bush, and 'diadema' meaning crown.

Misconceptions

Cannibalism is rare in this species but can occur, typically involving larger females consuming smaller males.

Tags

  • Sinea diadema
  • Spined Assassin Bug
  • Harpactorinae
  • predatory insects
  • North America