Transverse Lady Beetle
Location: Calgary, AB
Date: July 2, 2004
      Photo 1

Transverse Lady Beetle

Common Name:  Transverse Lady Beetle

Latin Name:  Coccinella transversoguttata richardsoni,
                         Brown, 1962

                         (R. Bercha, det.)

Length:  5.0 to 7.8 mm

Range: Throughout Alberta

Habitat:  Various

Time of year seen:  Summer

Diet: Aphids

Other: Before the arrival of the Seven-spot ladybug (late 1980's in Alberta), the Transverse Ladybug was our most widespread and abundant ladybug.  The arrival of the Seven-spot caused a dramatic decline in Transverse ladybug populations.  Where once it was found in a wide variety of habitats, it is now found in a limited number of habitats.  These include pediment slopes in the badlands, sparsely vegetated sand dunes and black spruce bog.  Occasionally, the odd specimen shows up in its prior habitats. (Acorn, 2007)


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