Neurolipa randiella

Identification requires microscopic examination due to minute size (under 6.2 mm wingspan). Distinguished from other Florida Gracillariidae by combination of: (1) exceptionally small size, (2) association with Randia aculeata host plants, and (3) male genitalia morphology (per original description). Similar minute gracillariids in Florida include Phyllonorycter and Cameraria species, which differ in host associations and usually exhibit more distinct wing patterning. Definitive identification likely requires dissection and comparison with type specimens.

Associated with coastal and inland scrub habitats supporting the host plant Randia aculeata, commonly known as white indigoberry. Randia aculeata occurs in pine rocklands, coastal hammocks, and disturbed sites in southern Florida. Specific microhabitat preferences for the moth are undocumented.

Endemic to Florida, United States. All confirmed records are from peninsular Florida.

Larvae are monophagous leaf miners on Randia aculeata (Rubiaceae). Feeding occurs within leaf tissue, creating internal mines. Adult feeding habits are unknown.

• Randia aculeata - larval host plantWhite indigoberry; native Florida shrub in Rubiaceae. Larvae mine leaves.

Complete metamorphosis with egg, larval, pupal, and adult stages. Larvae are leaf miners in Randia aculeata leaves. Specific details on pupation site, number of instars, and seasonal phenology are not documented.

Larvae are endophagous leaf miners, feeding internally within leaf mesophyll. Adults are presumably nocturnal or crepuscular, as is typical for Gracillariidae, though specific activity patterns are unrecorded.

As a specialist leaf miner, larvae likely function as a minor herbivore on Randia aculeata, potentially contributing to leaf turnover and nutrient cycling in Florida scrub ecosystems. No documented parasitoid or predator associations.

No known economic or agricultural significance. The host plant Randia aculeata has minor traditional medicinal uses, but the moth itself is of no documented importance. Not a pest species.

• Phyllonorycter speciesOther minute Gracillariidae in Florida with similar size and leaf-mining habits; distinguished by different host plants (typically oaks, legumes, or other families) and often more patterned wings.
• Cameraria speciesSmall gracillariid leaf miners in Florida; usually larger (wingspans 6–10 mm), with more robust bodies and distinct wing markings; hosts primarily in Fagaceae and other woody plants.
• Macrosaccus speciesMinute Florida gracillariids; can be separated by host associations and male genitalia structure.

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