Home
 
Beetles
 
Ladybirds
COCCINELLIDAE
 
Scymninae 
Yellow Shouldered
Mealybug Ladybird
Minute Two-spotted
 
Chilocorinae
Steel Blue Ladybird
Red Chilocorus 
Orange-spotted 
 
Coccinellinae
Common Spotted
Maculate Ladybird
Variable Ladybird
Transverse Ladybird
Striped Ladybird
Fungus-eatingLadybird
Spotted Amber
Netty Ladybird
 
Epilachninae
26-spotted Potato
28-spotted Potato
 

                                               

Mealybug Ladybird - Cryptolaemus montrouzieri

FAMILY COCCINELLIDAE

This page contains information and pictures about Mealybug Ladybird Beetles that we found in the Brisbane area, Queensland, Australia

 
Body length 4mm

This ladybird is also known as Mealybug Destroyer. This is a small ladybird beetle. This ladybird is famous on attacking mealybug, one of the worst pest in the world. This ladybird was exported from Australia to the United States in 1891 to control citrus mealybug in California.

 

The ladybird adults are dark green in colour, with thorax and head yellowish-brown. Their 'tails' are also brown in colour and look like their head. We expect to take a front photo, only find it is the tail after we enlarge the picture. 

This ladybird is shy. It is hard to take its close-up pictures. It always stays at the other side of the leaf or stem when we come close. When disturbed, it drops to the ground. A few seconds later, it flies away.
 
wpe12.jpg (31410 bytes)  wpe17.jpg (30763 bytes)
 
In mid summer one of the Hibiscus plants in our backyard was heavily infected by the Prickly pear cochineal (Dactylopius opuntiae), as shown in the above pictures. We noticed that there were already the Mealybug Ladybirds feeding on them. We expected the Prickly pear cochineal infection problem will be fixed very soon. Yes, few weeks later, the Prickly pear cochineal infection was down to unnoticeable level. The only white stuff on the Hibiscus were the Mealybug Ladybird larvae. 
 
wpe6.jpg (24514 bytes) 
 
The above first picture shows two ladybird larvae feeding on the scale insect on a Citrus leaf.  
 
wpeB.jpg (18544 bytes) 
Mealybug Ladybird larvae, body length 4mm. 
 
The larvae of this ladybird look like their major prey - the Mealybug, although they also prey on other soft bugs. The eggs are yellow in colour.
 

Reference:
1. Genera of Coccinellidae - The University of Queensland Insect Collection, 2004
2. Cryptolaemus montrouzieri - Biological Control, A Guide to Natural Enemies in North America
 
Back to Top

Up ] Yellow Shouldered Ladybird ] [ Mealybug Ladybird ] Minute Two-spotted Ladybird ]


See us in our Home page. Download large pictures in our Wallpaper web page. Give us comments in our Guest Book, or send email to us. A great way to support us is to buy the CD from us.  
Last updated: October 06, 2005.
1