Calliscelio telum 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 : 120-121

Calliscelio telum Chen & Johnson sp. n. Figures 256-261

Description.

Body length of female: 2.00-2.89 mm (n=20). Body length of male: 1.99-2.42 mm (n=9). Color of head: orange to pale brown; variably brown to black. Color of antennal clava (A7-A12): dark brown to black. Shape of head: subglobose. Central keel of frons: absent. Setation of upper frons: with dense, long setae. IOS/EH: IOS distinctly less than EH. Sculpture of ventrolateral frons: granulate. Sculpture of frons below median ocellus: granulate. 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: granulate. Ocular setae: dense, 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.

Color of mesosoma in female: orange throughout. Color of mesosoma in male: orange throughout. Sculpture of dorsal pronotal area: rugose. Sculpture of lateral pronotal area: smooth anteriorly, granulate posteriorly. Sculpture of netrion: smooth. Notaulus: percurrent or nearly so. Sculpture of mesoscutum: granulate. Shape of mesoscutellum: transverse. Foveolae of scutoscutellar sulcus between notauli: as large as those along margin of axilla. Sculpture of mesoscutellum: granulate. Shape of metascutellum: posterior margin straight, approximately 4.0 × wider than long. Sculpture of metascutellum in female: granulate. Sculpture of metascutellum in male: rugose. 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: largely smooth, rugose ventrally. Color of legs: orange yellow. Sculpture of hind coxa: smooth. Form of male antennal flagellomeres: filiform, approximately 3.0 × greater than width. Length of A5 tyloid in male: longer than 0.5 × length of A5.

Color of fore wing: hyaline. Rs+M: spectral. Setae on R: long, erect, surpassing the margin of the wing. Length of R: distinctly shorter than r-rs. Length of R1: approximately as long as 2.0 × length of r-rs.

Color of metasoma in female: orange throughout; variably orange to pale brown. Color of metasoma in male: T5-T7 brown to black, otherwise orange. Horn on T1 in female: large and distinct. Sculpture of T1 horn dorsally: rugulose. 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 posterior margin of T2. Sculpture of T3: smooth; smooth with longitudinal submedian striae. Shape of T6 in female: distinctly elongate, at least 2.0 × longer than wide. Sculpture of S3: smooth.

Diagnosis.

This species is most similar to Calliscelio granulatus in its hairy compound eyes and habitus but can be distinguished by the smooth netrion and rugulose T1 horn.

Etymology.

The epithet is used as a noun in apposition derived from the Latin word for sword, in reference to the elongate T6 in female.

Link to distribution map.

[http://hol.osu.edu/map-full.html?id=364059]

Material examined.

Holotype, female: BRAZIL: RO, Rancho Grande Farm, XI.1991, yellow pan trap, S. Passoa, OSUC 48550 (deposited in OSUC). Paratypes: (52 females, 9 males) ARGENTINA: 7 females, OSUC 534132- 534136 (CNCI); OSUC 577260- 577261 (UCRC). BOLIVIA: 3 females, OSUC 534031, 534180- 534181 (CNCI). BRAZIL: 26 females, OSUC 557243, 557338 (CNCI); OSUC 111811, 11920- 11922, 11924, 11926, 130907, 131117, 131476, 48560 (MZSP); OSUC 111725, 112704, 130635, 130718, 130750, 130752, 131118, 131188, 132434, 132437, 132572, 374723- 374724, 48583 (OSUC). PARAGUAY: 12 females, 9 males, OSUC 534116 (CNCI); OSUC 276697, 276699, 276702, 322995, 322998, 323038, 323048, 323071 (MNHNPY); OSUC 276692- 276695, 276698, 276700- 276701, 276704, 363635, 434081, 583312- 583313 (OSUC). PERU: 1 female, OSUC 323938 (OSUC). URUGUAY: 3 females, OSUC 534607, 534615- 534616 (CNCI).