Calliscelio paraglaber 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 : 86-89

Calliscelio paraglaber Chen & Johnson sp. n. Figures 178-183

Description.

Body length of female: 1.73-2.27 mm (n=20). Body length of male: 1.60-1.63 mm (n=14). Color of head: black throughout. Color of antennal clava (A7-A12): dark brown to black. Shape of head: subglobose. Central keel of frons: absent. Setation of upper frons: with sparse, long setae. IOS/EH: IOS distinctly less than EH. Sculpture of ventrolateral frons: smooth. Sculpture of frons below median ocellus: smooth. Sculpture of posterior vertex: smooth. Hyperoccipital carina: absent. Occipital carina medially: weakly indicated, irregularly sculptured. Length of OOL: less than 0.5 × ocellar diameter. Sculpture of postgena behind outer orbit: smooth. Ocular setae: absent. A4 in female: distinctly shorter than A3. A5 in female: shorter than A3, distinctly longer than wide. Shape of female A6: as long as wide. Form of male antennal flagellomeres: filiform, A11 approximately 4.0 × longer than wide. Length of A5 tyloid in male: approximately 0.3 × length of A5.

Color of mesosoma in female: black throughout. Color of mesosoma in male: black throughout. 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: smooth throughout. Shape of mesoscutellum: semiellipsoidal. Foveolae of scutoscutellar sulcus between notauli: smaller than those along margin of axilla. Sculpture of mesoscutellum: smooth throughout. Shape of metascutellum: posterior margin somewhat rounded, approximately 4.0 × wider than long. Sculpture of metascutellum in female: smooth. Sculpture of metascutellum in male: smooth. Dorsal propodeum in female: not excavate medially, lateral propodeal carinae meeting anteromedially. Sculpture of dorsal propodeum in female: rugose. Sculpture of dorsal propodeum in male: rugose. Median keels on propodeum in female: absent. Mesopleural carina: absent. Sculpture of mesepisternum below mesopleural depression: smooth. Sculpture of ventral metapleural area: smooth. Color of legs: pale yellow throughout. Sculpture of hind coxa: smooth.

Color of fore wing: hyaline. Rs+M: nebulose, weakly 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: T1 yellow, otherwise dark brown to black. Color of metasoma in male: brown throughout. Horn on T1 in female: weakly developed. 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: reaching the middle of T2 medially; reaching posterior margin of T2. Sculpture of T3: smooth with longitudinal submedian striae. Shape of T6 in female: short, slightly longer than wide. Sculpture of S3: largely smooth with sparse and fine punctures.

Diagnosis.

This species is most similar to Calliscelio glaber and Calliscelio torqueo in its smooth head and metascutellum. It may be separated from those two species by the complete occipital carina.

Etymology.

The name refers to the high degree of similarity with Calliscelio glaber and is intended to be used as a noun in apposition.

Link to distribution map.

[http://hol.osu.edu/map-full.html?id=362057]

Material examined.

Holotype, female: COSTA RICA: Puntarenas Prov., 24km W Piedras Blancas, Golfo Dulce, 200m, VI.1989-VIII.1989, Hanson & Goulet, OSUC 532684 (deposited in CNCI). Paratypes: (41 females, 14 males) COLOMBIA: 3 females, OSUC 191100- 191101, 269212 (OSUC). COSTA RICA: 32 females, 14 males, OSUC 532459- 532460, 532462, 532491, 532507- 532510, 532517, 532521, 532527- 532530, 532533, 532551, 532553- 532554, 532576, 532589, 532592- 532594, 532597- 532601, 532610, 532612- 532613, 532667- 532669, 532673, 532677, 532682, 532686, 532688- 532689, 532691- 532692, 532708, 532783, 532791, 532929 (CNCI). GUYANA: 2 females, OSUC 534274- 534275 (CNCI). MEXICO: 2 females, OSUC 534013, 557255 (CNCI). VENEZUELA: 2 females, OSUC 557665, 557671 (CNCI).