Species Details

Chrysobothris mali

University of Alberta E.H. Strickland Entomological Museum Read more about this collection »

Common NamePacific Flatheaded Borer SeasonalityJune and July. IdentificationThis is 1 of 2 species of Chrysobothris with white hairs covering the elytra. These hairs are often short, inconspicuous or worn, leading a person to key the beetle out through the other half of Couplet 1 in the above key. The head and pronotum are also covered with white hairs. The sides of the pronotum are straight; and the base is wider than the width of the head. Each elytron has 3 or 4 costae with the first more strongly elevated towards the posterior. Three foveae are present, each densely punctured, and usually reddish in colour are located between the first and second costae, at the end of the third costae and one interrupting the middle of the second costa. The tooth on the profemur is serrate distally.

Scientific Name Chrysobothris mali Common Name Pacific Flatheaded Borer Habitat Southern deciduous woodlands. Seasonality June and July. Identification
This is 1 of 2 species of Chrysobothris with white hairs covering the elytra. These hairs are often short, inconspicuous or worn, leading a person to key the beetle out through the other half of Couplet 1 in the…
This is 1 of 2 species of Chrysobothris with white hairs covering the elytra. These hairs are often short, inconspicuous or worn, leading a person to key the beetle out through the other half of Couplet 1 in the above key. The head and pronotum are also covered with white hairs. The sides of the pronotum are straight; and the base is wider than the width of the head. Each elytron has 3 or 4 costae with the first more strongly elevated towards the posterior. Three foveae are present, each densely punctured, and usually reddish in colour are located between the first and second costae, at the end of the third costae and one interrupting the middle of the second costa. The tooth on the profemur is serrate distally.
Life History
In warmer, southern parts of the beetles range, there is usually one generation per year. In cooler, northern climates, the larval period may be extended to two years (Burke 1929). The larvae chew broad irregular…
In warmer, southern parts of the beetles range, there is usually one generation per year. In cooler, northern climates, the larval period may be extended to two years (Burke 1929). The larvae chew broad irregular shallow tunnels through the inner bark and sapwood. In the Pacific Northwest, these beetles are responsible for the destruction of newly planted orchards trees (Baker 1977).
Conservation Uncommon in Alberta. Diet Info
Known to feed on a wide range of deciduous trees and shrubs, including maple, hawthorn, willow, alder, poplar, cherry and elm (Bright 1987). In some parts of its range it is a noted pest of orchards and ornamental…
Known to feed on a wide range of deciduous trees and shrubs, including maple, hawthorn, willow, alder, poplar, cherry and elm (Bright 1987). In some parts of its range it is a noted pest of orchards and ornamental trees (Burke 1929).
Range Known from southern British Columbia, southern Alberta and Southern Manitoba, south through the western United States (Fisher 1942, Bright 1987).
Chrysobothris mali
Chrysobothris mali

Citation

Page Citation for Chrysobothris mali

Page Citation

"Species Details - Chrysobothris mali, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-3010. Accessed 25 Apr. 2024.

Authorship

Name Hilchie, Gerald J.
Role species page author
Date 2003

References

Specimen Information

There are 3 specimens of this Species.

3 results plotted on map in 1 marker.
Note: Only records with latitude and longitude coordinates are plotted on map.

UASM23562 - Chrysobothris mali

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Medicine Hat Collected ByCarr, F. S. Date Collected1924-06-22

UASM23563 - Chrysobothris mali

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Medicine Hat Collected ByCarr, F. S. Date Collected1930-07-03

UASM23564 - Chrysobothris mali

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Medicine Hat Collected ByCarr, F. S. Date Collected1926-07-03

Adult Seasonal Distribution