Neurobasis kaupi, commonly known as the Great Blue Metalwing Damselfly, is a striking species of damselfly belonging to the family Calopterygidae. Native to Southeast Asia, it is primarily found in Indonesia, particularly on the island of Sulawesi, though its distribution also extends to parts of India and other regions of Southeast Asia . Males of this species are distinguished by their vivid metallic blue hindwings, which shimmer iridescently in sunlight, while females exhibit clear, translucent wings with a subtler sheen . Adults typically measure around 6 cm in length and inhabit clear, fast-flowing streams and rivers, often within forested areas . These damselflies are part of the genus *Neurobasis*, which is known for its association with pristine aquatic habitats .

Ecologically, *Neurobasis kaupi* displays notable reproductive behaviors. Males are highly territorial, defending prime oviposition sites such as submerged root mats or floating vegetation in swift currents . During courtship, males perform elaborate displays, flashing their iridescent hindwings and hovering with wings quivering above the water surface to attract females . Females lay eggs in submerged substrates at depths of 5–15 cm, often guided by males to optimal locations . The species’ preference for clean, forested waterways underscores its role as an indicator of environmental health, though habitat degradation poses potential threats to its populations. Despite its ecological significance, *N. kaupi* is also sought after by collectors for its striking appearance, with specimens often preserved in decorative frames .

We firmly support the sustainable tropical butterfly collections as long as they take care of the conservation of the rainforest where they fly and the development of responsible conscious trading. This allows us to support local ranching farms with ethically sourced material and help at the same time collectors and enthusiasts to contribute to understanding and treasuring those species.

Please take into consideration that the specimen that you will receive may slightly differ in size, shape or colour from the picture shown as you are purchasing a natural product.

All our items are carefully delivered to prevent damages on transport, papered items are packaged in glassine envelopes specifying capture/breeding data and location available. CITES certificate will be provided in the specimens required.

HOW WE GRADE OUR LISTINGS (SPECIMENS)

As Insect specimens are natural products, some are bred and some others caught in wild, the quality can vary greatly.

The guide below explains the grading used for specimens in our listings.

A1     No visible imperfections, both antennas, no tearing, scratches or missing part of the wings (or as perfect as you could expect from wild caught specimens), with exception of some leg damage.
A1-   Very minor damage, normally restricted to antenna damage or antennae attached separately in the envelope.
A-     These specimens have minor damage, such as antenna damage, or minor flight wear such as small scratches, minor sale damage, some minor fraying/chipping around the edges of the wings.
A2     More significant damage, such as major flight wear, small rips, small pieces missing from the wings, damage to the thorax or abdomen.
B or Second Grade      These specimens have similar damage to A2 specimens, but to a more significant degree. Usually used as parts replacement or art work material