Saturday, December 5th, 2009 6 05 /12 / December /2009 18:28

Here are exposed(explained) below 3 forms composing the brood at Camponotus ligniperdus.


The egg:


Oeufs Camponotus ligniperdus


The egg was maybe freshly laid totally white, or yellow orange-coloured according to the food(supply) received by the queen - slightly orange-coloured generally at the queens in foundation - and of shape lengthened(stretched out), after several days it is possible to notice a difference on its appearance! After a few days of incubation a translucent part(party) appears to its extremities ( 3 ). It is rather easy(well-to-do) to see him(it) in the naked eye to this sort(species).

A totally white egg ( 1 ) will thus be younger than a white egg in the clearer extremities ( 2 ).



The larva:



The embryonic stage(stadium) consists of 5 or 6 stages(stadiums) difficult to determine, the unnoticed crossing(spending) successive metamorphoses(sloughs), the size of these not being a criterion because the larvas of the same stage(stadium) can vary further to their state of affamement or the future which will result from these larvas according to which will give birth to a worker " minor ", "a media" "chief warrant officer"("major company") or to see sexual; this determination will rest(base) thus in particular on biometric methods.

Arrows in red on the photo below show the skin (metamorphoses)((sloughs)) which leave larvas by increasing, so by marking the beginning of the following stage(stadium).

Mues Camponotus ligniperdus


The wintering brood to Camponotus ligniperdus Would be trained(formed) by larvas of stages(stadiums) II ( the largest number) and III.


- Workers "nursemaids" taking care of larvas:


The nymph:



- Nymphs with various stages(stadiums) of maturity:


Ants are for development holométabole ( endoptérygote ), that is which the larva crosses(spends) by one NymPhose To reach(affect) the grown-up state our Camponotus ligniperdus does not escape it. The ant born time does not grow any more.
This nymphose at Camponotus ligniperdus always takes place in a silk cocoon as I was able to observe unlike certain sorts(species) of the kind(genre) Formica for example or it is not rare to see certain nymphs doing without this protective cocoon according to the ambient hygrometry.

The cocoon of a white perfect takes a yellowish tint "by aging".



On the following photos I removed the envelope to let appear at first the totally white nymph …



Then the colored nymph signs the next emergence here in view(sight) of the color a few hours at the most.

We also see on this photo the cuticle nymphale, visible especially at the level of the belly, which surrounds him(it) and which prevents the imago young person from releasing itself without the help(assistant) of the workers of the colony(summer camp).



By Chris. - Published in: behavior
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