Betaburmesebuthus sp.

XUAN, QIANG, CAI, CHEN-YANG & HUANG, DI-YING, 2023, Revision of palaeoburmesebuthid scorpions in mid-Cretaceous amber from northern Myanmar (Scorpiones: Buthoidea), Palaeoentomology 6 (1), pp. 64-101 : 83

Betaburmesebuthus sp.

( Fig. 15 )

Material. NIGP 201157, one probable adult male.

Description. Anterior margin of carapace with a feebly marked median concavity ( Fig. 15B ); median eyes oval and medium sized, and separated by more than one ocular diameter ( Fig. 15B ); pedipalp slender ( Fig. 15A ); internal surface of femur and patella with several spinous tubercles ( Fig. 15B ); metasomal segment I more slender than other congeners ( Fig. 15B ); telotarsus covered by numerous ventrosubmedian setae ( Fig. 15C–F ); vesicle extremely long with very evident four pairs of costate carinae and a single well-developed ventromedian carina, one or two small subaculear tuberance present on terminal of ventromedian carina, aculeus very long and moderately curved ( Fig. 15G ).

Remarks. We place this specimen in Betaburmesebuthus based on the general morphology although the trichobothrial pattern is unclear. The most unique trait of this specimen is the morphology of the telson, however, we refrain from establishing a new name for it due to the lack of other important features.

Figures

FIGURE 15. General habitus and details of Betaburmesebuthus sp., NIGP201157, under incident light. A, Ventral view. B, Dorsal view. C, Tarsus of right leg I. D, Tarsus of right leg II. E, Tarsus of right leg III. F, Tarsus of left leg III.Abbreviations: st, subaculear tubercle. Scale bars = 5 mm in A, B; 1 mm in G; 500 μm in C, D, E, F.