Taxonomy

Fraudatrix Cognato, Smith and Beaver, 2020 (in Cognato et al. 2020a): 544.

Diagnosis

Length 1.75–2.5 mm and 2.86–3.33 times as long as wide. Fraudatrix can be distinguished by the following combination of characters: antennal funicle 2-segmented, antennal club type 2 with one suture visible on the posterior face, protibia obliquely triangular with 6 or fewer denticles on outer margin and posterior face flattened and unarmed, scutellum small, flush with elytral surface, mycangial tufts absent, elytra attenuate and pronotal disc longer than anterior slope (Cognato et al. 2020a).

Fraudatrix most closely resembles Cryptoxyleborus and Tricosa with which it shares an attenuate appearance and small size. It can be distinguished from Cryptoxyleborus by the following diagnostic characters (Fraudatrix given first): scutellum visible vs scutellum not apparent, antennal club truncate and type 2 vs flattened and type 4, antennal funicle 2-segmented vs 3-or 4-segmented, no more than one suture visible on the posterior face vs three sutures visible. Fraudatrix is also similar to Stictodex with which it shares a type 2 antennal club, two-segmented funicle and obliquely triangular protibia. Stictodex is easily distinguished from Fraudatrix by the following combination of characters: larger size and stouter form (2.4–3.3 mm long; 2.54–2.89 times as long as wide), antennal club very broad, protibiae with 6–8 denticles on outer margin and posterior face inflated and granulate, elytra with first and second interstriae divergent, broadest at elytral summit, and declivity truncate or broadly rounded (Cognato et al. 2020a).

 

May be confused with

CryptoxyleborusCyclorhipidion, Stictodex, and Tricosa

Distribution

throughout the Oriental and Australian regions

Gallery system

Only the gallery of F. cuneiformis has been described. The system has branched tunnels with small brood chambers in the longitudinal plane (Browne 1961).

Remarks

Specimens of this genus are very rarely collected.