Thursday, October 21, 2010

White caterpillar collected from Kollam, Kerala


24-09-1991 – Kollam, Kerala


White in colour
White hairs covered with white powder throughout the body


Pupate by rolling a coconut palm leaf
Inside the roll, white power was there
The pupa is hanged by a web like thread


27-9-1991 – Eyes of the pupa was white
At 9 PM  the colour changed to red and looks like two red beads
28-9-1991 – The wing portion’s yellow colour changed to brown and red spot are seen there
Sway to sides when touched
29-9-1991 – 7 AM  Eyes and red spots changed to brown
9 PM  Colour of the wing portion changed from brown to black


30-9-1991 – 7 PM Emerged out
Eyes and proboscis red in colour
Body length 4 cm
Orange spots are there in the upper side of the  wings 

Wednesday, October 20, 2010

Moth from yellow black caterpillar


Food Plant : Lannea coromandelica ("Uthi" in Malayalam)

Yellow  colour with black strips
Length 3.5 cm
Length of hairs 2 cm, and white in colour, only on black strips
Body width 0.4 cm

Pupate in soft wood
Made a cage like covering (cocoon) with the bark of the wood
Starting the cage making at night (only in the dark) around 8 pm
If  we pointing a light source, it stops the work
Very small pieces of bark pasted to make these cage
Starting the cage from the middle portion of the body
Taking the bark from left and pasting it in the right
After finishing the half portion caterpillar turns and starts making the other portion


Emerged at night at 10.45 Pm
Excrete dark orange and thick liquid just after emerging. It hardened after few seconds
The curled wings takes 3 to5 minutes to open completely

Wings are dark brown in colour outside and brownish grey inner with white lines and black markings
Half portion of the under side of the wing is orange from the top
Inner side of the leg is orange and outer grey
In front of the black eyes there is two hornlike organ and in between them a yellow sucker is spiraled
Having segmented antenna
There is spin  in the joints of legs


Tuesday, October 19, 2010



11-5-1993 – Palode, Thiruvananthapuram
Eggs are pasted together and pasted in a metal line
Exact round in shape, 1.5 mm in diameter
Difficult to count because pasted one over another and not in a particular order

A brown spot at top
Light brown lines in two sides

13-5-1993 – All eggs hatched at 8.30 PM
Like black ants but having Transparant wings and flying
Having antinae
0.5 mm length



Lacewings are insects in the large family Chrysopidae of the order Neuroptera.
There about 85 genera and (differing between sources) 1,300–2,000 species 
Green lacewings are delicate insects with a wingspan of 6 to over 65 mm
The bodies are usually bright green to greenish-brown, and the compound eyes are conspicuously golden in many species.
The wings are usually translucent with a slight iridescence
Eggs are deposited at night, singly or in small groups; one female produces some 100–200 eggs.
Eggs are placed on plants

Each egg is hung on a slender stalk about 1 cm long, to keep them from eating one another when they hatch, usually on the underside of a leaf. Immediately after hatching, the larvae moult, then ascend the egg stalk to feed

Lacewing larvae look like little alligators
Lacewing larvae are grey-brown in color and very tiny when just hatched, so you may need a magnifying glass to see them
The larvae are also called aphid lions, because they devour aphids
Larvae have either a more slender "humpbacked" shape with a prominent bulge on the thorax
Larvae growing up to 1/2" long need about 1–3 weeks to pupation which takes place in a cocoon
Adults are nocturnal. They feed on pollen, nectar and honeydew supplemented with mites, aphids and other small arthropods
Adults range in size from 1/2-3/4" long
Adults live 4-6 weeks

1-3-1993 – Observed some eggs hanged in an orchid leaf
The hanging thread is thick enough that if we reverse the leaf it stands erect
Eggs halfwhite in colour and below 1mm in length, oval in shape
5-3-1993 – Eggs hatched at 4PM
                             Viewed through microscope

Monday, October 18, 2010


My Observations


01-11-1991 – Found the caterpillars in Olea plant.
Eats the leaf of the same plant
The caterpillars leaves in webs like spider
Usually the caterpillars moults.
The moulted skin was there in the web
Black in colour with yellow spots and white hairs 
in the body
Totally seven segments
Three pair of legs with sharp nails in the first three 
segments after the head
Third segments from the back there is a pair of suckers


07-11- 1991 – Halfwhite in colour
Large spots are yellow in colour and small 
spots black
Hanging on a web connected from a leaf
Sways when touched

12-11-1991 -  Changes in the colour of the pupa slightly
Become slight brown and shiny like polished
The Eye spot projected outward

19-11-1991 -  Emerged at 7.15 AM
Female is large in size
Usually mating while minutes after emerging
White in colour with black spots
                      Flickering style of flight
Host Plant

Olea dioica Roxb.

Genus: Olea subgenus: Tetrapilus
Family: Oleaceae tribe: Oleeae. 

Habit :              Trees up to 15 m tall.
Trunk & Bark :          Bark brownish, rough; blaze pale brown.
Vernacular names : Malayalam: Edana; Etala; Irippa

Friday, October 15, 2010

Sting Bug

Scientific Classification
Kingdom – Animalia
Phylum – Arthropoda
Class – Insecta
Order – Hemiptera
Family - Pentatomidae

Stinkbug, the common name for a family of insects. There are thousands of species, found in most parts of the world. Stinkbugs are so named because they secrete a foul-smelling liquid that is repulsive to most predators.
Some species are serious pests, others are beneficial because they feed on other harmful insects.
Like all true bugs, stinkbugs have no chewing mouthparts. Instead, they have tubelike beaks called rostrums attached to their heads. The rostrum has four thin, sharp needles in it.
Most kinds of stinkbugs suck the juices of plants. Some kinds suck the body fluids of insects. Others feed on both plants and insects.
When not feeding, stinkbugs hold their beaks underneath their bodies between their front legs.
Like most true bugs, a stinkbug has two pairs of wings. The back wings are so thin you can almost see through them. The front wings are thick and tough at the base and very thin at the tips. When a stinkbug rests, the tips of its front wings cross, forming what looks like an “X.”
A tough shell, or exoskeleton protects the bug’s entire body.
A stinkbug gives off a very bad smell if it is disturbed. The smell comes from a stinky liquid that flows from two glands on the bug’s thorax.

After mating, a female stinkbug lays batches of eggs. The eggs are usually laid on plant leaves. Stinkbug eggs look like tiny barrels
Microscopic View of the Egg

Stinkbugs, like all true bugs, change as they grow. Like all insects, they go through a process called metamorphosis
Nymph is born with a hard outer layer of skin that it soon outgrows. So the nymph molts. After the fifth and last molt, the wings are fully developed. A stinkbug nymph becomes an adult after about a month.

Several species of parasitic wasps have been found to attack stink bugs

My Observation

3-6-1993            Collected a batch of eggs pasted in a cycus plant leaf  in Palode, 

The microscopic view of an egg  is shown above.
The eggs were attached to the leaf with a gum like material and the lid seems sewed with the shell by web
The egg is like a barrel having a lid at top
The black markings and the white spots were embossed from the shell

Tuesday, October 12, 2010

Moth from a caterpillar eating Jasminum grandiflorum

My observations
2-11-1991 -  Caterpillar got from a Jasminum grandiflorum (Pichi-in malayalam) plant
Three pairs of legs in the front first segment with nails
There is a tail-like part in the last segment which stands bend upwards
Eating leaf in the night also

3-11-1991 – The green colour in the body changed to brown in some areas

4-11-1991 – In the night it made a cavity in the soil one inch below. The green colour totally changed to brown. If we touch in the body it moves quickly to and fro

8-11-1991 – Moulted once. After the molting the colour changed totally to pink

19-11-1991 – The colour changed to blood red here and there
Skin toughened
The tail-like part’s colour changed to black
When touching, the last three segments moves front and back like a shock                        absorber

22-11-1991 – The red colour in the body shining in the night

23-11-1991 – In the morning 6’O clock found emerged. May be emerged in the night 

It was a moth

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