Pupae vs. Chrysalis

[Stanley A. Gorodenski]

My copy of Borror and DeLong has no reference to a Hedylid, nor any
other books I have.  What is a Hedylid?

"Chris J. Durden" wrote:
> 
> Ken,
>     Maybe my teachers got it wrong or went to a different school from
> your's. I shall see if I can find a reference they might have used.
> Sawflies definitely have caterpillars, as do caddis flies some scorpion
> flies and snake flies.
>     It is probably simpler and less confusing to talk about larvae and
> pupae. I always do.
>     Back in 1957 when I raised Lepidoptera for the CNC in Ottawa, the lab
> report sheet for preserved specimens had a box for "instar". In this box we
> put either e, l1, l2, l3, l4 . . . p, or a. Most holometabolous insects
> have more than four instars, most of which are larval and all are separated
> from the others by a moult or egg laying.
> ............Chris Durden
> Does an Hedylid have a chrysalis? I would say yes, but I would use the word
> pupa to describe it, and I would call the similar stage of an Orange Tip a
> pupa too.
> 
> At 11:53 AM 10/21/2001 -0800, you wrote:
> 
> > >    The way I learned it over 50 years ago -
> > > - ovum, larva, pupa, and imago are the proper words for the ontogenic
> > > instars of holometabolous insects.
> > > - egg, caterpillar, chrysalis (with or without a cocoon), and adult are
> > > the colloquial words for the life stages of insects with complete
> > > metamorphosis.
> >
> >         I find this odd on two counts:
> >
> >1) 'Instar' is the "stage of an insect between successive moults, the first
> >instar being the stage between hatching and the first moult" (Borrer &
> >DeLong, glossary). I have never seen 'instar' applied to the 4 stages of
> >a holometabolous insect.
> >
> >2) 'Caterpillar' as the colloquial word for a dipteran maggot, coleopteran
> >grub, etc. is something I have never come across. Same with 'chrysalis'
> >for the pupa of any non-lepidopterous insect.
> >
> >         That's certainly not the way _I_ learned it over 50 years ago.  :-)
> >
> >                                                         Ken Philip
> >fnkwp at uaf.edu
> >
> >P.S. I checked a number of my older books (late 1800s to early 1900s), and
> >all of them agree that 'chrysalis' applies only to butterflies (without
> >going into taxonomic minutiae as what is and what isn't a butterfly). So
> >whatever people are saying nowadays, the original use of the term was
> >not applied to moths (let alone other orders).
> >
> 
> 
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