Larinus is a genus of true weevils

Curculionidae

Curculionidae is the family of the "true" weevils . It was formerly recognized in 1998 as the largest of any animal family, with over 40,000 species described worldwide at that time...

, comprising about 180 species, mostly in the Palaearctic region.
Turkey appears to have a significant diversity of the group, with more than 50 species recorded in the Eastern part of the country.

Several of these beetles are used as agents of biological pest control

Biological pest control

Biological control of pests in agriculture is a method of controlling pests that relies on predation, parasitism, herbivory, or other natural mechanisms...

 against noxious weeds

Noxious weeds

A noxious weed is an invasive species of a plant that has been designated by country, state or provincial, or national agricultural authorities as one that is injurious to agricultural and/or horticultural crops, natural habitats and/or ecosystems, and/or humans or livestock...

. They feed on flower heads

Head (botany)

The capitulum is considered the most derived form of inflorescence. Flower heads found outside Asteraceae show lesser degrees of specialization....

, destroying the developing seeds of the weeds.

Species include:

• Larinus araxicola
  Larinus araxicola
  Larinus araxicola is a species of true weevil found in the Araks valley in northeastern Turkey.The weevil feeds on Centaurea polypodiifolia L. . Females lay eggs on the flowerheads, and larvae undergo development inside the flower heads....
  
  Gultekin, 2006
• Larinus brevis
• Larinus centaurea Oliver, 1807
• Larinus curtus
  Larinus curtus
  Larinus curtus is a species of true weevil known as the yellow starthistle flower weevil. It is native to Southern Italy, Southern Europe, the Middle East and the Caucasuses...
  
  
• Larinus cynarae
• Larinus filiformis
  Larinus filiformis
  Larinus filiformis is a species of true weevil found in Armenia, Azerbaijan, Turkey, and Bulgaria.The weevil's main host plant in its native range is yellow starthistle Centaurea solstitialis. For this reason, there is interest in determining whether L...
  
  Petri
• Larinus flavescens
• Larinus gigas
• Larinus grisescens Gyllenhal
• Larinus jaceae
• Larinus latus
  Larinus latus
  Larinus latus is a species of true weevil. It is used as an agent of biological pest control against Onopordum thistles in Australia....
  
  Herbst
• Larinus minutus
  Larinus minutus
  Larinus minutus is a species of true weevil known as the lesser knapweed flower weevil. It is used as an agent of biological pest control against noxious knapweeds, especially diffuse knapweed and spotted knapweed....
  
  
• Larinus obtusus
  Larinus obtusus
  Larinus obtusus is a species of true weevil known as the blunt knapweed flower weevil. It is used as an agent of biological pest control against noxious knapweeds, especially spotted knapweed ....
  
  
• Larinus orientalis Capiomont, 1874
• Larinus planus
  Larinus planus
  Larinus planus is a species of true weevil. It is used as an agent of biological pest control against the noxious weed canada thistle ....
  
  
• Larinus sibiricus
  Larinus sibiricus
  Larinus sibiricus is a species of true weevil found in Eastern Europe and the Middle East.The weevil feeds on Xeranthemum annuum . Females lay eggs on the flowerheads, and larvae undergo development inside the flower heads. The species' larvae apparently are parasatized by Bracon urinator ....
  
  
• Larinus sturnus