I'll try not to point out the joy it gives me to do a bug report on the insect theme. Basically, I got an error message every time I summoned a creature. Specifically, the error message referred to Summoning Discounts, which I assume has something to do with my feats, Spell Focus: Conjuration (and later Greater Spell Focus: Conjuration). The details:
*The character I used was a Gnomish Wizard with 18 Intelligence.
*At 2nd level, I received 40 summoning points to work with.
*At 3rd level, I recieved 60 points.
*When I cast Summon Creature I, I received a Summoned Biting Insect/Bug Swarm with 37 HP, +10 AB, and the accompanying error message.
*When I cast Summon Creature II, I received the exact same summon as above.
*SC I cost 5 summoning points with GSF: Conjuration. SC II cost 15 points.
*Both summons lasted the same amount of time.
You will find the relevant character in the server vault under the player name efu_Ordeal.