Taxonomic history

Euwallacea neptis Smith, Beaver & Cognato 2020 (in Smith et al. 2020b): 247.


4.2 mm long (n = 1); 2.8 times as long as wide. This species is distinguished by the pronotum basic (type 2) when viewed dorsally, anterior margin appearing rounded; and elytral bases rounded, never granulate; elytral declivity gradual, declivital face flat, opalescent and shagreened; striae impressed, strial punctures large, and posterolateral declivital margin elevated, acutely carinate, giving the apical third of declivity an impressed appearance; and large size. 

May be confused with

Euwallacea fornicatus species complex (E. fornicatior, E. fornicatus, E. kuroshio, E. perbrevis), E. andamanensis, E. geminus, E. malloti, E. semirudis, E. testudinatus, and E. velatus


India (West Bengal)

Host plants

unknown (Smith et al. 2020b)

DNA data

specimens not available for sequencing