Zigrasimecia ufv-09, 2023

Abstract, Júlio Cezar Mário Chaul, 2023, A revision of the Cretaceous ant genus Zigrasimecia Barden & Grimaldi, 2013 (Hymenoptera: Formicidae: † Zigrasimeciinae), Zootaxa 5325 (3), pp. 301-341 : 329

Zigrasimecia ufv-09

( Fig. 18 )

The specimen has many bubbles around it which prevents an ascertained identification. It has similar head shape, in full-face view, to Z. caohuijiae . It also resembles that species by its mesosomal and petiolar shape, in profile view. There are, however, standing setae on the body which makes conspecificity to Z. caohuijiae unlikely. The standing setae are thin, filiform, and apparently sparse, resembling that of Z. ferox . The shape of the mesosoma and petiole, though, do not indicate Zigrasimecia ufv-09 belongs to Z. ferox . Additional specimens, when found, might allow a more complete characterization and help in deciding whether it is worthy of receiving a formal description. This morphospecies was excluded to all identification keys due to the small number of characters that could be extracted from the specimen.

Examined material. Worker (ANTWEB1047064). Hukawng Valley, Kachin Province, Myanmar; Lower Cenomanian (ca.98.79 ± 0.62 Ma) [ JCMCC] .

Figures

FIGURE 18. Morphospecies Zigrasimecia ufv-09 (specimen ANTWEB1047064). A, head in full-face view; B, profile of left side of body; C, anterior (slightly dorsal) view of mouthparts; D, zoom of propodeum, petiole and first gastral tergite, evincing filiform setae on body.