Calliscelio absconditum 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 : 16

Calliscelio absconditum Chen & Johnson sp. n. Figures 16-21

Description.

Body length of female: 2.04-2.54 mm (n=20). Body length of male: 1.70-2.36 mm (n=20). Color of head: 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 sparse, long setae. IOS/EH: IOS distinctly less than EH. Sculpture of ventrolateral frons: smooth to coriaceous. Sculpture of frons below median ocellus: coriaceous. Sculpture of posterior vertex: granulate to rugulose. 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 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; dark brown throughout. Sculpture of dorsal pronotal area: rugose. Sculpture of lateral pronotal area: smooth throughout. Sculpture of netrion: smooth. Notaulus: percurrent. Sculpture of mesoscutum: granulate. 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. Shape of metascutellum: posterior margin straight, approximately 3.0 × wider than long. Sculpture of metascutellum in female: rugose. Sculpture of metascutellum in male: rugose. Dorsal propodeum in female: shallowly excavate medially, with lateral propodeal carinae widely separated. 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: largely smooth with an oblique carina. Color of legs: pale yellow 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: 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: brown throughout. Horn on T1 in female: large and distinct. Sculpture of T1 horn dorsally: smooth to rugulose medially, with V-shaped keels laterally; with V-shaped striae. 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 medially, coriaceous laterally. Shape of T6 in female: short, wider than long. Sculpture of S3: smooth to coriaceous.

Diagnosis.

This species is similar to Calliscelio brevinotaulus , Calliscelio carinigena , Calliscelio crater and Calliscelio sfina in color pattern, size, and habitus. It may be distinguished by the complete occipital carina and granulate to rugulose posterior vertex (Fig. 19).

Etymology.

The epithet is used as a noun in apposition derived from the Latin word for hidden, in reference to the obscurity of the occipital carina from dorsal view.

Link to distribution map.

[http://hol.osu.edu/map-full.html?id=384359]

Material examined.

Holotype, female: PARAGUAY: Canindeyú Dept., Jejuí-mí, Bosque Mbaracayú Natural Reserve, 10.I.1997, B. Garcete, OSUC 323924 (deposited in MNHNPY). Paratypes: (59 females, 104 males) BOLIVIA: 7 females, OSUC 534032, 534038, 534040, 534054- 534055, 534058, 534186 (CNCI). BRAZIL: 11 females, 28 males, OSUC 534520 (CNCI); OSUC 10439, 10444, 10601, 10610, 10653, 110189, 131761, 131787, 131827, 134436, 134786, 134875, 510887, 826 (MZSP); OSUC 10040, 10502, 10557, 10633, 10718, 10949, 110085, 110139, 110159, 110215, 11065, 112, 12321, 130, 131695, 131754, 131816, 131840, 131892, 133022, 133090, 134370, 134681, 134791 (OSUC). PARAGUAY: 41 females, 76 males, OSUC 534107- 534115, 534559 (CNCI); OSUC 534683, 534695- 534697, 534699- 534700, 534702, 534704, 534706- 534707, 534713- 534714, 534726- 534728, 534731- 534749, 570521- 570525, 570527- 570534 (MNHNPY); OSUC 150602- 150603, 150606, 150610- 150611, 165099, 176064, 276773- 276777, 276796, 278657- 278658, 278661- 278662, 278664- 278665, 278668- 278670, 278673, 278676, 278679, 322990, 323001- 323003, 323027- 323029, 323032, 323035, 323920- 323923, 323925- 323927, 412079- 412082, 412085, 534725, 570526, 577174, 577176, 577178- 577180, 577188- 577189, 577340, 577343, 577346, 577349- 577350 (OSUC).