Merhynchites
Sharp, D., 1889
Rose Weevils
Species Guides
2- Merhynchites bicolor(Rose Curculio)
- Merhynchites wickhami(western rose curculio)
Merhynchites is a of leaf and bud weevils in the Attelabidae, containing approximately 12 described . The genus includes the well-known rose curculio (Merhynchites bicolor), a significant pest of cultivated roses. Members of this genus are characterized by their elongated rostrums and association with flowering plants, particularly roses.
Pronunciation
How to pronounce Merhynchites: //mɜːˈrɪŋkɪtiːz//
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Identification
Merhynchites can be distinguished from other attelabid weevils by their elongated, slender rostrum and often striking color patterns. Merhynchites bicolor specifically exhibits a distinctive two-toned appearance: brick-red and contrasting with a solid black rostrum. The lacks the more compact body form seen in many related attelabid genera.
Images
Diet
Members of this feed on rose buds and petals. Merhynchites bicolor has been observed causing damage to rose blossoms, with feeding resulting in hole-riddled petals and faded, ragged flowers.
Host Associations
- Rosa - primary ; feeding on buds and petals
Life Cycle
Females lay inside rose buds.
Human Relevance
Merhynchites bicolor is a notable pest of cultivated roses, particularly damaging to yellow and white rose varieties. The feeding damage to buds and petals reduces ornamental value.
Similar Taxa
- Other Attelabidae generaMerhynchites is distinguished by its more elongated rostrum and specific association with roses; other attelabids often have shorter rostrums and different plant associations
More Details
Taxonomic history
The was established by David Sharp in 1889.
Common name usage
The "rose curculio" specifically refers to Merhynchites bicolor, though "rose weevils" applies to the broadly.