Bristling with coarse hairs, this enormous fly's legs twitch just before it launches into the air on buzzing wings.
Giant Fly CR 1
XP 400
N Medium vermin
Init +3; Senses darkvision 60 ft.; Perception +2
Defense
AC 13, touch 13, flat-footed 10 (+3 Dex)
hp 15 (2d8+6)
Fort +6, Ref +3, Will –2
Immune disease, mind-affecting effects
Offense
Speed 20 ft., climb 20 ft., fly 60 ft. (good)
Melee bite +2 (1d6+1 plus disease)
Statistics
Str 12, Dex 17, Con 16, Int —, Wis 7, Cha 2
Base Atk +1; CMB +2; CMD 15 (21 vs. trip)
Skills Climb +9, Fly +7, Perception +2; Racial Modifiers +4 Perception
Ecology
Environment any temperate or tropical
Organization solitary, pair, or swarm (3–12)
Treasure none
Special Abilities
Disease (Ex) Filth Fever: Bite—injury; save Fortitude DC 14; onset 1d3 days; frequency 1/day; effect 1d3 Dex damage and 1d3 Con damage; cure 2 consecutive saves. Some flies might carry other diseases, at the GM's discretion. The save DC is Constitution-based.
Much like their tiny cousins, giant flies feed upon carrion. Wholly monstrous, these disgusting creatures have been known to sometimes attack still-living foes, particularly when they are hungry or living creatures disturb their meals. Some species of giant fly bear their larva live, ejecting piles of undulating giant maggots from their engorged abdomens rather than laying eggs in decaying corpses.