kova
I thought that we had done this before; must be due again!
The crash of honey bee populations is due to "colony collapse disorder" (CCD) whose cause no one really understands. About 19 states are free from this problem, AZ, together with NE and NM is one of them. As Christian once pointed out, though, collecting in a particular area in the numbers required to feed mantids will most certainly not impact the population. Unfortunately, this is one of those areas on which many Americans think that strong opinions are a good substitute for knowledge.
I have fed thousands of honey bees over the last year and never had a mantis harmed. Neither have I heard a report of one being stung or bitten, so this seems to be a needless fear.
Unlike humans, mantids, like most critters, tend only to eat what is good for them. Note, for example that they ignore the wings of roaches and lepidopterans, and, as has been recently discussed, the gut contents of large roaches and crix. They go nuts, though, for bees. I feed from a medication vial directly into a feeding port. The mantid can hear the bees buzzing, and I have had many species, Chinese, Giant Asians, Shields and Budwings among others, that will try to climb into the vial to pull the bee out.
I, too, have wondered how the mantis can utilize the large amount of chitin (the horny exoskeleton of insects). Recent physiology texts now report that predators like mantids do use an enzyme (a protein that speeds up a reaction), chitinase, that breaks down the chitin, presumably into sugars, so the chitin is not wasted and, as we know, it is not excreted.
I agree with Rick that they don't have a lot of meat in their abdomens, though the thoracic wing muscles are a great source of protein. Much more importantly, all those spikes and hairs pick up the important nutrient, pollen,
"Fig. 3. Adult female mantid,
T. a. sinensis, eating honey bee,
Apis mellifera. A mantid will normally consume the entire bee, including pollen sacs, but excepting wings."
as described in the source of this pic
http://www.bioone.or...6-225X-32.4.881 The authors found that pollen with two flies was the equivalent, in terms of growth, of feeding four flies and that it can also increase fecundity. I have found the latter to be true, as well.
Also, on a practical level, I can easily find honey bees but almost never see a bumble bee, though we have carpenter bees in the summer.
I hope that this makes things clear until next time!