Fallomyrma anodonta

Identification
Radchenko & Dlussky (2018) - Fallomyrma anodonta differs from all known species of Fallomyrma in the absence of short pointed teeth on the propodeum, the longer head (CI > 1.55 versus < 1.35), and also in the smaller size (the body is about 2.5 mm long versus > 3 mm).

Distribution
This taxon was described from.

Nomenclature

 * † anodonta. †Fallomyrma anodonta Radchenko & Dlussky, 2018: 156, plate 5, figs. 1, 2 (w.) UKRAINE (Rovno Amber).

Worker
Body length, about 2.5 mm. The head is rather narrow, more than 1.5 times longer than wide, with very weakly convex lateral sides, straight occipital margin, and narrowly rounded occipital corners. The clypeus structure corresponds to that of the generic diagnosis, but setae are indiscernible in the holotype and paratype. The maxillary palps are fivesegmented, the labial palps are invisible. The number of teeth on the masticatory margin of the mandibles is impossible to count.

The mesosoma is rather short; the promesonotum is arched convex; the metanotal groove is deep, abrupt and rather wide; the propodeum lacks teeth, only slightly angular at transition from horizontal to slightly sloping surface (in lateral view). The petiole with long peduncle; its node is high, somewhat longer than the petiole length. The postpetiole is globular, somewhat higher than long.

The body is smooth and shiny; short longitudinal, slightly sinuous rugae are only present on the mesopleura and the lower part of the propodeum sides. The mesosoma, waist, and gaster have long suberect setae, which are especially abundant on the gaster. The legs and antennal scape lack suberect setae (decumbent pubescence is also invisible).

Type Material
Holotype. , no. K–24847, worker; Rovno amber, Late Eocene. Paratype IZShK, no. K–24847 (in the same piece of amber as the holotype).

Etymology
From the Greek οδοντος (teeth) and αν (without), meaning the absence of teeth on the propodeum.