Cryphalus mangiferae
Stebbing, E.P., 1914
mango bark beetle
A tiny tropical bark beetle in the weevil Curculionidae ( Scolytinae) that attacks mango trees (Mangifera indica). Native to southern Asia, it has spread to tropical regions worldwide and is recognized as a of plant-pathogenic fungi causing mango wilt . In Pakistan and other regions, it poses a serious threat to mango .
Pronunciation
How to pronounce Cryphalus mangiferae: /ˈkrɪfələs mæŋˈɡɪfəriː/
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
Distinguished from by combination of: with finely aciculate texture; long pronotal disc bearing coarse hair-like setae; elytral barely impressed but visible due to absence of ground vestiture in rows; and ground vestiture with tapered tips. Tiny size (1.6–2.2 mm) and association with mango bark damage are supporting indicators.
Images
Habitat
Tropical and subtropical regions; primarily associated with mango trees (Mangifera indica). Attacks mainly stressed or diseased trees, less frequently healthy trees. Develops under bark of trees.
Distribution
Native to southern Asia; introduced to other tropical regions. Recorded from India (type locality), Pakistan, Oman, Brazil, and across Oceania, Australia, Africa, Central and South America including the Caribbean. GBIF records confirm presence in Brazil (Pernambuco, Rio de Janeiro, São Paulo).
Seasonality
Multiple overlapping per year (3–4 generations) in tropical climates; continuous breeding possible where conditions permit.
Diet
Feeds under inner bark of mango and related Anacardiaceae; larvae form irregular galleries in phloem tissue. feeding occurs under bark during maturation period.
Host Associations
- Mangifera indica - primary Most important ; attacks stressed, diseased, and occasionally healthy trees
- Choerospondias axillaris - secondary Other recorded in Anacardiaceae
Life Cycle
Females lay under bark; eggs hatch in 4–5 days. Five larval stages feed under inner bark, forming irregular galleries. Complete development from egg to takes approximately 4 weeks. Adults remain under bark for ~2 weeks post- to mature, feed, and complete before dispersing.
Behavior
Boring : and larvae tunnel under bark creating galleries. behavior: transports symbiotic fungi in mycangia, facilitating transmission to trees. on stressed or diseased trees.
Ecological Role
Primary pest of mango . of plant-pathogenic fungi (Ceratocystis spp.) causing mango wilt/sudden decline . Contributes to tree mortality and economic losses in affected regions.
Human Relevance
Agricultural pest of significant economic importance in mango-producing regions, particularly Pakistan where regarded as serious threat to . Associated with mango wilt causing branch death, wilting foliage, bark discoloration, and potential tree death within months.
Similar Taxa
- Other Cryphalus speciesShare -level ; distinguished by specific characters of texture, pronotal setae, elytral impression, and vestiture shape
- Hypothenemus hampei (coffee berry borer)Formerly classified in same tribe Cryphalini; differs in association (coffee seeds vs. mango bark) and morphological details
More Details
Disease Vector Role
Often associated with wilting mango trees infected by Ceratocystis fungi. Mycangia structures carry symbiotic fungi. known as 'mango wilt' or 'mango sudden decline' reported from Pakistan, Oman, and Brazil. Causal agent historically attributed to Ceratocystis fimbriata; in Pakistan and Oman, Ceratocystis manginecans described in 2007 as associated . Phylogenetic studies suggest mango wilt caused by different of C. fimbriata rather than distinct .
Taxonomic History
described by E.P. Stebbing in 1914 from India. Cryphalus formerly placed in tribe Cryphalini, which underwent major reclassification in 2020 (Johnson et al., Insect and Diversity), with Cryphalini split among three new tribes.