Calliscelio magnificus Chen & Masner

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 : 78-79

Calliscelio magnificus Chen & Masner sp. n. Figures 160-165

Description.

Body length of female: 2.85-3.88 mm (n=19). Body length of male: 2.86-3.00 mm (n=7). Color of head: dark brown; orange to pale brown. Color of antennal clava (A7-A12): dark brown to black. Shape of head: subglobose. Central keel of frons: present. Setation of upper frons: with sparse, short setae. IOS/EH: IOS distinctly less than EH. Sculpture of ventrolateral frons: smooth to rugulose. Sculpture of frons below median ocellus: smooth; coriaceous. Sculpture of posterior vertex: granulate. Hyperoccipital carina: absent. Occipital carina medially: complete, weakly crenulate throughout. Length of OOL: less than 0.5 × ocellar diameter. Sculpture of postgena behind outer orbit: largely smooth with small granulate area. Ocular setae: absent. A4 in female: distinctly longer than A3. A5 in female: shorter than A3, distinctly longer than wide. Shape of female A6: length distinctly greater than width. Form of male antennal flagellomeres: filiform, A11 approximately 3.5 × longer than wide. Length of A5 tyloid in male: approximately 0.3 × length of A5.

Color of mesosoma in female: variably orange to pale brown. Color of mesosoma in male: variably orange to pale brown. Sculpture of dorsal pronotal area: rugose. Sculpture of lateral pronotal area: smooth throughout. Sculpture of netrion: smooth. Notaulus: percurrent or nearly so. Sculpture of mesoscutum: granulate. 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: broad, short. Sculpture of metascutellum in female: smooth with a longitudinal, median carina. Sculpture of metascutellum in male: smooth. Dorsal propodeum in female: deeply excavate medially, with lateral propodeal carinae widely separated, running subparallel to accommodate T1 horn. Sculpture of dorsal propodeum in female: rugose. Sculpture of dorsal propodeum in male: rugose with one or two longitudinal keels lateral median keel. Median keels on propodeum in female: absent. Mesopleural carina: present. Sculpture of mesepisternum below mesopleural depression: smooth. Sculpture of ventral metapleural area: smooth. Color of legs: orange yellow; pale brown. 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 orange to pale brown. Color of metasoma in male: variably orange to pale brown. Horn on T1 in female: large and distinct. Sculpture of T1 horn dorsally: smooth. Sculpture of posterior margin of T1 in female: longitudinally striate throughout. Sculpture of T1 in male: longitudinally striate. 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 with longitudinal submedian striae. Shape of T6 in female: distinctly elongate, approximately 3.0 × longer than wide. Sculpture of S3: largely smooth with sparse and fine punctures.

Diagnosis.

The females of this species are easily distinguished from other Calliscelio species by the combination of large and smooth T1 horn, elongate T6 and large body size. The males are most similar to Calliscelio flavocauda , Calliscelio laticinctus and Calliscelio longius but can be separated by the smooth metascutellum.

Etymology.

The specific epithet is to be treated as a noun in apposition, derived from the Latin for “splendid” and refers to our impression of this species.

Link to distribution map.

[http://hol.osu.edu/map-full.html?id=362060]

Material examined.

Holotype, female: PERU: Huánuco Reg., 39km NE Tingo Maria, Azul Range, 1700m, 11. I– 14.I.1983, Newton & Thayer, OSUC 458272 (deposited in CNCI). Paratypes: (20 females, 8 males) COSTA RICA: 2 females, OSUC 532663, 532746 (CNCI). ECUADOR: 1 female, OSUC 553449 (CNCI). PERU: 13 females, 8 males, OSUC 458263- 458264, 458266- 458271, 458273- 458284, 534405 (CNCI). VENEZUELA: 4 females, OSUC 458233- 458235, 557668 (CNCI).