The short answer for a Jackson's chameleon
A Jackson's chameleon eats live insects, several kinds, prepared properly. Roaches, crickets, silkworms, black soldier fly larvae, and the occasional hornworm make up the working menu for a Jackson's chameleon, each batch fed nutritious greens first and then dusted lightly with calcium powder. This chameleon, a highland species from East Africa also established in Hawaii, hunts by sight and tongue-shot, so food must move and must be sized to its head — roughly, nothing wider than the space between its eyes. A Jackson's chameleon offered the same cricket every day for months is being fed, but not well; rotation is how a single-prey shortfall gets covered.
Preparation matters more than the insect list
A Jackson's chameleon receives whatever its insects ate, which makes the feeder colony part of the chameleon's own diet. Keep crickets and roaches on leafy greens, squash, and carrot for at least a day before use, and dust insects for a Jackson's chameleon so they look faintly frosted rather than ghost-white with powder. This montane species is notably more sensitive to heavy supplementation than lowland chameleons, so a light daily calcium dusting and a more sparing multivitamin schedule, discussed with a reptile veterinarian, suits a Jackson's chameleon better than aggressive dusting at every meal. Wild-caught insects from sprayed gardens should never reach a Jackson's chameleon; pesticide exposure that a hardier lizard might survive can fell a chameleon quickly.
Cup feeding a Jackson's chameleon, and why
A Jackson's chameleon benefits from a feeding cup fixed among its branches near a favorite perch. Loose crickets vanish into foliage, bite sleeping lizards, and make it impossible to know whether a Jackson's chameleon actually ate — the cup solves all three problems and lets shy individuals feed unobserved. Count insects in and count what remains for this Jackson's chameleon, because a quietly falling appetite is often the first sign of trouble in chameleons. Juveniles of this species eat daily and can take surprising numbers of small insects; adults settle into feedings every other day. Offer water alongside food by misting or a dripper for a Jackson's chameleon, since hydration and appetite in this species rise and fall together, and many will drink from leaves before they hunt.
Appetite changes in a Jackson's chameleon
A Jackson's chameleon that stops tongue-shooting accurately deserves attention, because missed shots can point to vision, mineral, or hydration problems rather than pickiness. Watch for this chameleon sitting with eyes closed during the day, a weakening grip on branches, or insects wandering the enclosure untouched — each is a reason to book a reptile veterinarian rather than simply buying a new feeder species. Gravid females may eat unevenly, and males can go off food in cooler montane-style nights, but a Jackson's chameleon that refuses across a week while losing its casque fullness needs professional assessment. Keep temperatures on the cooler, highland side for this species, since an overheated Jackson's chameleon often stops feeding before other signs appear. In KinsLe, Care Teams can assign misting, cup counts, and dusting for this Jackson's chameleon to different keepers, each job timestamped when done.