Glyphidops

Glyphidops can be distinguished from the related genus Nerius by dark brown forecoxae (Nerius has yellow forecoxae). From Odontoloxozus peruanus, Glyphidops differs by having a non-elongate antennal pedicel. The antennal arista is situated apically on the postpedicel (third segment), a character shared with other Neriidae that distinguishes the family from nearly all other acalyptrate flies. Males possess elongate legs with spinose forefemora, though these appear to be used in sexual combat rather than as raptorial appendages.

Associated with cactus environments, as indicated by the common name 'cactus flies' for the family Neriidae. Specific microhabitat preferences for Glyphidops species are not well documented.

Documented from the Brazilian Amazon region. The precise geographic range of individual species within the genus remains incompletely characterized.

Males of Neriidae, including presumably Glyphidops, engage in sexual combat behavior involving rearing up on hind legs and striking opponents with forelegs or ventral head surfaces, including attempts to place rivals in head-locks. This behavior has been directly observed in related genera but not specifically documented for Glyphidops.

• NeriusSimilar elongate body form and apical antennal arista; distinguished by yellow forecoxae versus dark brown in Glyphidops, and by thoracic color pattern used for species-level identification
• Odontoloxozus peruanusSimilar family-level characters; distinguished by elongate antennal pedicel versus non-elongate pedicel in Glyphidops

• Diptera
• Neriidae
• acalyptrate
• cactus flies
• Neotropical

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