Calliscelio virga 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 : 125-127

Calliscelio virga Chen & Johnson sp. n. Figures 268-273

Description.

Body length of female: 1.68-2.10 mm (n=20). Body length of male: 1.64-2.07 mm (n=20). Color of head: brown throughout; variably brown to black. Color of antennal clava (A7-A12): black. Shape of head: subglobose. Central keel of frons: absent. Setation of upper frons: with sparse, long setae. IOS/EH: IOS slightly less than EH. Sculpture of ventrolateral frons: smooth to granulate. Sculpture of frons below median ocellus: largely smooth with sparse fine punctures. 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: sparse, short. A4 in female: distinctly shorter than A3. A5 in female: shorter than A3, as long as wide. Shape of female A6: distinctly wider than long. Form of male antennal flagellomeres: filiform, A11 approximately 2.0 × longer than wide. Length of A5 tyloid in male: greater than 0.5 × length of A5.

Color of mesosoma in female: orange throughout; 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: rugose. Notaulus: percurrent or nearly so. Sculpture of mesoscutum: smooth with sparse punctures; coriaceous. Shape of mesoscutellum: semiellipsoidal. Foveolae of scutoscutellar sulcus between notauli: as large as those along margin of axilla. Sculpture of mesoscutellum: smooth with sparse fine punctures; granulate. Shape of metascutellum: posterior margin straight, approximately 4.0 × wider than long. Sculpture of metascutellum in female: smooth. Sculpture of metascutellum in male: smooth. Dorsal propodeum in female: shallowly excavate medially, with lateral propodeal carinae widely separated. Sculpture of dorsal propodeum in female: rugulose. 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: orange throughout. Sculpture of hind coxa: smooth.

Color of fore wing: hyaline. Rs+M: spectral. Setae on R: long, erect, surpassing the margin of the wing. Length of R: approximately as long as r-rs. Length of R1: approximately as long as r-rs.

Color of metasoma in female: orange throughout; variably orange to pale brown. Color of metasoma in male: variably orange to pale brown. Horn on T1 in female: present as a small bulge. 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 the anterior margin of T2. Sculpture of T3: smooth. Shape of T6 in female: short, wider than long. Sculpture of S3: smooth.

Diagnosis.

This species is most similar to Calliscelio bisulcatus and Calliscelio storea in the hairy compound eyes, size and habitus but can be easily recognized by its narrow and smooth metascutellum.

Etymology.

The specific epithet is Latin for rod or wand and should be treated as a noun in apposition. It refers to the narrow smooth metascutellum of this species.

Link to distribution map.

[http://hol.osu.edu/map-full.html?id=364058]

Material examined.

Holotype, female: BOLIVIA: Santa Cruz Dept., Andrés Ibáñez Prov., B-21, pools, 375m, 17°40'S, 63°27'W, El Hondo, 14. V– 17.V.1997, yellow pan trap, L. Masner, OSUC 534034 (deposited in CNCI). Paratypes: (169 females, 98 males) BRAZIL: 15 females, OSUC 534523, 557298 (CNCI); OSUC 48514, 48520, 55945, 55947, 55952, 583247, 583250, 583252- 583255, 583257- 583258 (OSUC). CANADA: 8 males, OSUC 531726- 531727, 531734- 531737, 532035, 532077 (CNCI). COLOMBIA: 1 female, 1 male, OSUC 557585, 557623 (CNCI). COSTA RICA: 1 female, OSUC 532651 (CNCI). DOMINICAN REPUBLIC: 2 males, OSUC 534361, 534375 (CNCI). ECUADOR: 3 females, OSUC 458516, 458518, 553369 (CNCI). GUATEMALA: 1 male, OSUC 534434 (CNCI). MEXICO: 5 males, OSUC 534018- 534020, 534477- 534478 (CNCI). PARAGUAY: 3 females, 4 males, OSUC 150470, 534684, 577155, 577191- 577192, 577195- 577196 (OSUC). SURINAME: 4 females, OSUC 534568, 534572, 534587, 553621 (CNCI). TRINIDAD AND TOBAGO: 2 females, OSUC 546029, 546085 (CNCI). UNITED STATES: 138 females, 76 males, OSUC 531682, 531686, 531750, 531776- 531780, 531786, 531792, 531918, 531940- 531947, 532061, 532064, 532100, 532119, 532121, 532131- 532177, 532180- 532246, 532340- 532390, 534347- 534360 (CNCI); OSUC 142805, 142807, 142810, 207785, 236919, 272939- 272940, 576980, 62904, 62907, 62927 (OSUC). VENEZUELA: 2 females, 1 male, OSUC 557676 (CNCI); OSUC 55924- 55925 (OSUC).