Paratype of Eutheia siamensis Franz

The paratype specimen was mounted in such a position that it resembled the holotype, especially that the body length and the antennae are similar to those of the holotype. After relaxing, cleaning and remounting (Fig. 7), however, it became clear that this is not a Cephennomicrus, but a member of Eutheiini. Because of the very small body it was difficult to identify the genus, but the low-pressure-SEM examination of an uncoated specimen revealed characters typical of Paraneseuthia (Figs 8–9): three-segmented maxillary palps; long prementum; head capsule lacking occipital constriction; inner part of prothoracic hypomera very narrow; prosternal process feebly developed, narrow and not separating procoxae; fully demarcated mesanepisterna and mesepimera; moderately broad and flat mesoventral intercoxal process narrowing anteriorly and in its anterior part strongly elevated; and area separating metacoxae much broader than intermesocoxal region. The strongly elongate and flattened body form of this specimen is a feature rarely found among Paraneseuthia, but this genus is most morphologically diverse among Eutheiini, and similarly small and slender species are known from Australia (Jałoszyński 2011c, 2013); also an undescribed species from the Japanese subtropical Sakishima Archipelago (mentioned by Jałoszyński 2011c) shows similar features.