101Leafy researched the games.
Diablos

A two-horned wyvern found in desert zones. They are capable of burrowing into sand to attack prey from below. It has been confirmed that they have a subspecies called Monoblos.
Monster List No. 25
Carving
Number of carvings: 4 (2 per area) (BradyGames, Monster Hunter Official Strategy Guide, 2004, p. 87). The guide (p. 78) splits the carves by Quest Level: early quests are levels 1 to 3, latter quests 4 to 6.
Early quests, Body
| Item | Chance |
|---|---|
| Blos Fang | 5% |
| Diablos Shell | 30% |
| Diablos Shell | 30% |
| Diablos Shell | 10% |
| Blos Fang | 18% |
| Blos Fang | 7% |
Early quests, Tail
| Item | Chance |
|---|---|
| Diablos Shell | 15% |
| Diablos Tail | 30% |
| Diablos Shell | 30% |
| Diablos Shell | 15% |
| Diablos Shell | 8% |
| Diablos Shell | 2% |
Latter quests, Body
| Item | Chance |
|---|---|
| Blos Fang | 15% |
| Diablos Shell | 30% |
| Diablos Spine | 30% |
| Diablos Spine | 15% |
| Diablos Shell | 8% |
| Diablos Shell | 2% |
Latter quests, Tail
| Item | Chance |
|---|---|
| Diablos Shell | 15% |
| Diablos Tail | 30% |
| Diablos Tail | 30% |
| Diablos Shell | 15% |
| Diablos Shell | 8% |
| Diablos Shell | 2% |