New earwigs in mid-Cretaceous amber from Myanmar (Dermaptera, Neodermaptera) Author Engel, Michael S. text ZooKeys 2011 130 137 152 http://dx.doi.org/10.3897/zookeys.130.1293 journal article http://dx.doi.org/10.3897/zookeys.130.1293 1313-2970-130-137 Tytthodiplatys mecynocercus Engel sp. n. Fig. 2 Holotype. AMNH Bu-FB75; female nymph (first instar); amber, mid-Cretaceous, Myanmar: Kachin State (nr. Myitkyina), ex coll. Federico Berloecher ; deposited in the Division of Invertebrate Zoology (Entomology), American Museum of Natural History, New York. Diagnosis. As for the genus (vide supra). Description. As for the genus with the following minor additions: First-instar nymph: Total length as preserved (including cerci) ca. 1.9 mm; head medial length from clypeal apex to posterior border 0.46 mm; compound eye length 0.08 mm; length of head behind compound eye 0.10 mm. Pronotum medial length 0.25 mm; mesonotum medial length 0.22 mm; metanotum medial length 0.12 mm. Abdominal length as preserved (excluding cerci) 0.83 mm; cerci length 1.58 mm. Integument as preserved apparently brown, impunctate, strongly imbricate, dull, matt throughout. Legs without spines or bristle-like setae except for a few stiff setae on dorsal surface of profemora. Cerci separated at base by about cercal basal width. Setae of body sparse, where present setae stiff and erect to suberect, particularly those apicolaterally on abdominal terga; cerci with numerous, elongate, stiff, erect setae scattered along cercomeres. Etymology . The specific epithet is a combination of the Greek words mekyno (meaning, "prolong" ) and kerkos (meaning, "tail" ).