Calliscelio levis Chen & Johnson

Chen, Hua-yan, Masner, Lubomir & Johnson, Norman F., 2017, New World species of the genus Calliscelio Ashmead (Hymenoptera, Platygastridae, Scelioninae), ZooKeys 648, pp. 1-136 : 74-75

Calliscelio levis Chen & Johnson sp. n. Figures 148-153

Description.

Body length of female: 1.52-1.77 mm (n=13). Color of head: variably brown to black. Color of antennal clava (A7-A12): A7 orange, remainder dark brown to black; A7 dark brown, A8-A12 golden yellow. Shape of head: subglobose. Central keel of frons: absent. Setation of upper frons: with sparse, short setae. IOS/EH: IOS distinctly less than EH. Sculpture of ventrolateral frons: smooth with sparse punctures. Sculpture of frons below median ocellus: smooth. Sculpture of posterior vertex: coriaceous. Hyperoccipital carina: absent. Occipital carina medially: complete, weakly crenulate throughout. Length of OOL: greater than 0.5 × ocellar diameter. Sculpture of postgena behind outer orbit: smooth. Ocular setae: absent. A4 in female: as long as A3. A5 in female: shorter than A3, distinctly longer than wide. Shape of female A6: distinctly longer than wide.

Color of mesosoma in female: orange throughout; variably yellow to pale brown. Sculpture of dorsal pronotal area: rugose. Sculpture of lateral pronotal area: smooth throughout. Sculpture of netrion: rugulose. Notaulus: percurrent or nearly so. Sculpture of mesoscutum: coriaceous. Shape of mesoscutellum: semiellipsoidal. Foveolae of scutoscutellar sulcus between notauli: smaller than those along margin of axilla. Sculpture of mesoscutellum: smooth with sparse fine punctures. Shape of metascutellum: posterior margin somewhat rounded, approximately 3.5 × wider than long. Sculpture of metascutellum in female: smooth. Dorsal propodeum in female: not excavate medially, lateral propodeal carinae meeting anteromedially. Sculpture of dorsal propodeum in female: rugose. Median keels on propodeum in female: absent. Mesopleural carina: present. Sculpture of mesepisternum below mesopleural depression: smooth. Sculpture of ventral metapleural area: largely smooth, rugose ventrally. Color of legs: orange yellow. Sculpture of hind coxa: smooth.

Color of fore wing: hyaline. Rs+M: nebulose, strongly pigmented. Setae on R: long, erect, surpassing the margin of the wing. Length of R: approximately as long as r-rs. Length of R1: greater than 3.0 × length of r-rs.

Color of metasoma in female: variably yellow to pale brown. Horn on T1 in female: weakly developed. Sculpture of T1 horn dorsally: smooth. Sculpture of posterior margin of T1 in female: longitudinally striate throughout. Development of longitudinal striae on T2 in female: present on anterior margin of T2 medially, reaching posterior margin of T2 laterally. Sculpture of T3: smooth; smooth with longitudinal submedian striae. Shape of T6 in female: short, subtriangular. Sculpture of S3: smooth.

Diagnosis.

This species is most similar to Calliscelio foveolatus but can be distinguished because the foveolae of the scutoscutellar sulcus between the notauli are smaller than those along the margin of the axilla and A4 is as long as A3.

Etymology.

The epithet is an adjective, Latin word for smooth, polished and bald, in reference to the smooth T3.

Link to distribution map.

[http://hol.osu.edu/map-full.html?id=384811]

Material examined.

Holotype, female: ECUADOR: Napo Prov., Baeza, 2000m, 20. II– 25.II.1979, Malaise trap, W. Mason, OSUC 553454 (deposited in CNCI). Paratypes: (12 females) ECUADOR: 10 females, OSUC 458530- 458531, 553452, 553455, 553484, 553573, 553579- 553580, 553582, 553691 (CNCI). PERU: 2 females, OSUC 534395, 534415 (CNCI).