Proterosceliopsis ambulata Talamas, Shih & Ren, 2019

Talamas, Elijah J., Johnson, Norman F., Shih, Chungkun & Ren, Dong, 2019, Proterosceliopsidae: A new family of Platygastroidea from Cretaceous amber, Journal of Hymenoptera Research 73, pp. 3-38 : 3

Proterosceliopsis ambulata Talamas, Shih & Ren sp. nov.

Figures 45 , 48-50

Diagnosis.

Proteroscelio ambulata shares with P. wingerathi , P. nigon and P. masneri the roughly equal lengths of metasomal segments 1-6. It can be separated from all of these by the evenly convex form of T1, which has a horn in P. masneri and an anteromedian area of prominent striae in P. nigon and P. wingerathi .

Description.

Head: Number of antennomeres in female: 14. Number of clavomeres in female: 7. Claval formula in female: 1-2-2-2-2-2-2. Number of mandibular teeth: 3. Number of labial palpomeres: not visible. Number of maxillary palpomeres: not visible. Shape of clypeus: narrow, transverse. Central keel: absent. Antennal scrobe: undifferentiated sculpturally from remainder of frons. Anterior margin of occipital carina: simple.

Mesosoma: Pronotal prespiracular depression: present, without striation. Netrion: absent. Skaphion: present. Posterior notaulus: reaching posterior margin of mesoscutum. Width of notaulus: expanding posteriorly. Parapsidal lines: absent. Mesoscutal suprahumeral sulcus: indicated by smooth furrow. Scutoscutellar sulcus: simple. Postacetabular carina: absent. Postacetabular sulcus: absent. Mesopleural epicoxal sulcus: present. Episternal foveae: absent. Metapleural sulcus: present as a transverse furrow. Lateral propodeal carina: present laterally as two small posteriorly-pointing projections.

Metasoma: Horn on T1 in female: absent. Sculpture of T1: weakly longitudinally striate throughout. Macrosculpture of T2-T5: absent. Anterior tergal depressions: visible on T1-T6. Median keel on S2: absent. Macroculpture of S3-S6: absent. Anterior sternal depressions: visible on S1-S6.

Etymology.

This species is given the name “ambulata” because the holotype specimen appears to be walking.

Link to distribution map.

[http://hol.osu.edu/map-large.html?id=451148]

Material examined.

Holotype female: MYANMAR: CNU-HYM-MA-2016105 (deposited in CNU).

Figures

Figures 45 - 47. 45 Proterosceliopsis ambulata (CNU-HYM-MA- 2016105), distal metasoma, dorsal view 46 Fidiobia (USNMENT 01197212 _ 2), distal metasoma, dorsal view 47 Fidiobia (USNMENT 01197212 _ 2), distal metasoma, ventrolateral view.

Figures 48 - 50. Proterosceliopsis ambulata (CNU-HYM-MA- 2016105) 48 habitus, lateral view (left side) 49 habitus, lateral view (right side) 50 head, mesosoma, metasoma, dorsal view. Scale bars in millimeters.