Proterosceliopsis nigon Talamas, Shih & Ren sp. nov.

Figures 5, 29, 34

Diagnosis.

Protersoceliopsis nigon is most similar to P. wingerathi, from which it can be separated by having 9 clavomeres and T2 without striation posterior to the transverse anterior depressions.

Description.

Head: Number of antennomeres in female: 14. Number of clavomeres in female: 9. Claval formula in female: 1-2-2-2-2-2-2-2-2. Number of mandibular teeth: not visible. Number of labial palpomeres: not visible. Number of maxillary palpomeres: at least 5. Shape of clypeus: narrow, transverse. Central keel: absent. Antennal scrobe: indicated by faint transverse rugae. Anterior margin of occipital carina: crenulate.

Mesosoma: Pronotal prespiracular depression: present, without striation. Netrion: absent. Skaphion: present. Posterior notaulus: not reaching posterior margin of mesoscutum. Width of notaulus: expanding posteriorly. Parapsidal lines: present. Mesoscutal suprahumeral sulcus: simple, without furrow or cells. Scutoscutellar sulcus: crenulate. Postacetabular carina: present directly posterior to acetabulum. Postacetabular sulcus: present as simple furrow. Mesopleural epicoxal sulcus: present. Metapleural sulcus: present as a transverse furrow. Lateral propodeal carina: present and continuous dorsally, forming lamella surrounding metasomal depression, medial portion raised and projecting dorsally. Metasomal depression: excavate, interior surface with striae dorsomedially.

Metasoma: Horn on T1 in female: absent. Sculpture of T1: longitudinally striate medially. Macrosculpture of T2-T5: absent. Anterior tergal depressions: visible on T1-T6. Median keel on S2: absent. Macroculpture of S3-S6: longitudinal median carina on S3-S4, otherwise absent. Anterior sternal depressions: visible on S1-S6.

Etymology.

This word “nigon” is Anglo-Saxon for “nine”, referring to the number of clavomeres in this species, and is treated as a noun in apposition.

Link to distribution map.

[http://hol.osu.edu/map-large.html?id=463679]

Material examined.

Holotype female: MYANMAR: CNU-HYM-MA-2017566 (deposited in CNU) . Other material: (1 female) MYANMAR: OPPC1718 (deposited in OPPC).