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On 5/25/16 5:09 PM, Lois B. O'Brien wrote:
> While rearing them, they found only 4 instars, and we are wondering if 
> this happens in many other insects.  There is a weevil, a Brachycerus 
> species in Africa that feeds on lily bulbs and if the bulb is small, 
> has only 4 instars (Schalk Louw).
Bees have 4 or 5 instars, sometimes variable within a species, and AFAIK 
ascalaphids and myrmeleontids only have 3. If you want to know how 
meaningful the finding might be, you'd probably want to compare only to 
other fulgoroids or other auchenorrhynchs.

Peace,

-- 
Doug Yanega      Dept. of Entomology       Entomology Research Museum
Univ. of California, Riverside, CA 92521-0314     skype: dyanega
phone: (951) 827-4315 (disclaimer: opinions are mine, not UCR's)
              http://cache.ucr.edu/~heraty/yanega.html
   "There are some enterprises in which a careful disorderliness
         is the true method" - Herman Melville, Moby Dick, Chap. 82