Cretadystaxia burmanica, Legalov, 2025

Cretadystaxia burmanica sp. nov.

https://zoobank.org/ urn:lsid:zoobank.org:act:C6BAA0AD-CEAD-4164-9D36-378F4FF0C97C

( Fig. 1 View Figure 1 )

Type material. Holotype, female: ISEA MA 2019-1 , Burmese amber, Myanmar; Cenomanian, late Cretaceous .

Etymology. The epithet of this new species is from Burma – “ Myanmar ”.

Description. Body black, flattened dorsally, densely punctate, covered with rather long adpressed setae. Forehead broad. Eyes slightly protruding, finely facetted, rounded. Palpi of maxilla with four palpomeres. Fourth palpomere equal in length to third. Antennae eleven-segmented, weakly serrate, without club. First antennomere about 2.9 times as long as wide at apex. Second antennomere subordinate to antennomere first. Third to fifth antennomeres equal in width. Third antennomere 4.0 times as long as wide at apex, of same length and about 0.7 times as narrow as antennomere second. Fourth to seventh antennomeres of same length. Fourth antennomere 3.6 times as long as wide at apex, 0.9 times as long as antennomere third. Fifth antennomere equal to antennomere fourth. Sixth antennomere 4.5 times as long as wide at apex, 0.8 times as narrow as antennomere sixth. Seventh antennomere 3.6 times as long as wide at apex, about 1.3 times as wide as antennomere six. Eighth antennomere about 2.8 times as long as wide at apex, about 0.9 times as long and 1.2 times as wide as antennomere seventh. Ninth antennomere equal to antennomere eighth. Tenth antennomere about 2.7 times as long as wide at apex, about 0.9 times as long and as wide as antennomere ninth. Eleventh antennomere 2.8 times as long as broad at middle, about 0.9 times as long and about 0.8 times as narrow as antennomere tenth. Pronotum almost bell-shaped, about 1.2 times as long as broad at apex, equal to broad at middle, about 0.9 times as long as broad at base, with weak lateral pronotal carinae. Elytra densely punctate, without impressions. Elytra oval, broadest near middle, 1.7 times as long as broad across base, about 1.5 times as long as broad across middle, about 2.3 times as long as broad across apical fourth, about 1.9 times as long as pronotum, with weak humeri. Lateral margins serrate. Elytral striae present. Interstriae quite wide. Procoxal part of prosternum 2.0 times as long as length of procoxal cavity. Metaventrite weakly convex, about 1.9 times as long as mesocoxal cavity length. Metepisternum broad, about 1.3 times as long as broad at middle, narrowing posteriorly. Abdomen weakly convex. First ventrite about 1.5 times as long as length of mesocoxal cavity. Second ventrite about 0.8 times as long as ventrite first. Third ventrite about 0.6 times as long as ventrite second. Fourth ventrite about 0.7 times as long as ventrite third. Fifth ventrite about 1.9 times as long as fourth ventrite. Legs long. Femora weakly clavate, unarmed. Metafemora about 2.3 times as long as broad at centre. Tibiae straight. Metatibia 6.4 times as long as broad at apex, with spur and dense brush of setae on apical third of inner margin. Tarsi long, five-segmented. Metatarsi: second tarsomere 0.5 times as long as tarsomere first; third tarsomere equal in length to tarsomere second; fourth tarsomere slightly shorter than tarsomere third; fifth tarsomere about 2.3 times as long as tarsomere fourth. Fourth tarsomere with long lobe below, completely divided into two parts. Claws bifid. Body length 4.6 mm.

Remarks. This species belongs to the family Schizopodidae because it is characterised by a broad metepisternum and a tarsomere fourth with a long lobe underneath, completely divided into two parts.

The following is a list of Schizopodidae :