Another true bug, Hesperolabops gelastop (Fig. Dear Victoria, These are multiple instars or developmental stages of immature Cactus Coreids, Chelinidea vittiger, which are pictured on BugGuide.. Cactus bug, nymphs (immature), Chelinidea vittiger, subfamily Coreinae, family Coreidae. This older nymph, still red (teneral) and soft after its last molt before reaching adulthood, fell victim to a jumping spider. Could they be nymphs… Cochineal scale on cactus is initially a nuisance but, in extreme infestations, can weaken and kill the plant. These small insects suck on cacti leaves. The females, wingless and about 5 mm (0.20 in) long, cluster on cactus pads. Found a huge colony of cactus bug nymphs today (Chelinidea vittiger aequoris) They look like this: http://edis.ifas.ufl.edu/in365 After mating, they give birth to nymphs that secrete a waxy white substance over their bodies for protection. Add Comment. The females cluster on cactus paddles, feeding on its juices. Plenty of this bug's nymphs ranged the cactus along with the grown-ups. INVASION! They use special structures to pierce the tough leaves and suck the sap from the pad, resulting in conspicuous white to brown dime-sized rings after feeding has been in progress a while. 1 ⁄ 4. to ½ inch in diameter on cactus pads. □ The photographer found these young nymphs of cactus bugs, some of them actually on nopal cacti. So I guess this rare species will survive here in our backyard. You can see the exuvia (shed skin) at the top left and a string of new eggs on the thorn on the right. Small yellowish green bug that blended in nicely to the colors of the cactus. Young nymphs gather and feed to-gether as they develop through stages, called instars. Hey Bugman! So, we recently discovered these bugs invading a prickly pear cactus near our front door. When the eggs hatch, the nymphs feed on the plant for three weeks, moving all around the plant. First, down in the lower, left corner an adult Cactus Bug seems to be hovering in the vicinity of the brood, though normally we don't think of bugs as watching over their offspring. After mating, the fertilised female increases in size and gives birth to tiny nymphs. Both adults and nymphs scattered to the rock after I lifted the pads. Roundish abdomen. That's a nymph below: Both nymphal developmental stages and adults can produce large, pale blotches . spines, and both the adults and the nymphs feed on these cacti by biting into their skin and sucking their vascular fluids. They sort of resemble an assassin bug, or agave bug. They penetrate the cactus with their beak-like mouthparts and feed on its juices, remaining immobile unless alarmed. 4), also infests cacti. The Insect and the Nopal Cactus Cochineal insects have a flat, soft body, and oval-shaped scale. Therefore, instead of this bug's life cycle consisting of egg-larva-pupa-adult, it is egg-nymph-adult. Chelinidea vittiger (Cactus Bug) Infestation. By Jolie Krupnik (November 2019) Notice the circular white spots on the opuntia pad at the bottom right of the photo, which are a result of the bugs sucking the sap from the pad. Adults are small, fast-moving bugs with reddish heads and Cochineal insects are soft-bodied, flat, oval-shaped scale insects. The cottony, waxy mass is produced to shelter the female insects and their eggs. True Bugs on Cactus True bugs suck! CACTUS BUG NYMPHS Now the results of last November's orgiastic period are in evidence, as shown below: That photo shows three things worth noting. When young, the nymphs may have a red or a black head and thorax, and green abdomen (as shown here). Nymphs are like adults, except that their wings aren't developed and they're smaller. Both nymph and adult forms of prickly pear cactus bugs feed on the pads of prickly pear. 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