Flathead Catfish
Pylodictis olivaris · Ictaluridae
Also known as: Shovelhead, Yellow cat, Mud cat, Appaloosa
The live-bait specialist of the family, and the last of the three to spawn. Flatheads stop feeding while actively spawning, which makes the early-July lull biological rather than bad luck.
- Typical size
- 5–30 lb
- Max size
- Can exceed 100 lb.
- Water
- Freshwater
- Best season
- June before the spawn, and again from late July into autumn.
Identification
A broad, flattened head and a squared — not forked — tail, which separates it instantly from channel and blue catfish. Mottled yellow-brown to olive, with a projecting lower jaw.
Habitat & Range
Larger pools and deep holes in rivers and reservoirs, tight to old brushy tangles, submerged logs and undercut banks. Spawning fish excavate a saucer-shaped depression inside a natural cavity or beside a large submerged object.
Native to the Mississippi, Missouri and Ohio basins and the Gulf drainages; widely introduced elsewhere, where it is often an aggressive predator on native species.
Diet & Feeding
Almost entirely live fish and crayfish, with mussels, snails and insects taken occasionally. Flatheads rarely take cut or prepared bait, which is the practical difference from channel cats.
Spawning & Reproduction
Spawns in late June and July, distinctly later than channel catfish. The egg mass is a compact golden-yellow clump of 100,000 or more, and a parent agitates it continuously with fin movements to keep it oxygenated and free of silt. The male guards the fry for about a week after hatching.
Spawning windowSource-verified
- Run begins
- Jun 24
- Peak
- Jul 5
- Ends
- Jul 21
No temperature is given because no agency source publishes a flathead-specific one. Oklahoma's ODWC lists 75F, but that text is word-for-word identical on its channel and blue catfish pages, so it is boilerplate rather than a species finding, and it contradicts Missouri's explicit statement that flathead spawn later than channel. Window dates are MDC's observed north Missouri range: the last week of June to the third week of July.
Timing is modelled for a mid-latitude reference population — fish the thermometer, not the calendar. Based on 3 cited sources.
How to Catch
Live bait, at night, tight to timber and deep holes. Plan around the spawn rather than through it: Missouri's agency notes flatheads feed heavily before and after spawning but seldom while actively spawning, which makes the first weeks of July the year's predictable dead spot.
Best techniques
- Live baiting
- Bank fishing at night
- Jug lining
- Drifting
Lures & baits
- Live bluegill
- Live shad
- Green sunfish
- Crayfish
Best season: June before the spawn, and again from late July into autumn.