Odontoscelio pluto ( Nixon, 1936 )

Veenakumari, Kamalanathan & Mohanraj, Prashanth, 2021, Review of Odontoscelio Kieffer, 1905 (Platygastroidea, Scelionidae) with the description of two new species from India, European Journal of Taxonomy 739 (1), pp. 51-91 : 74-76

Odontoscelio pluto ( Nixon, 1936)

Figs 15–16

Macrogryon pluto Nixon, 1936: 186 , fig. 17 (holotype, ♂, NHMUK).

Macrogryon pluto – Masner 1965: 99 (type information).

Odontoscelio pluto – Masner 1976: 72 (transfer from Macrogryon ).

Material examined

Syntype (images only) SOUTH AFRICA • 1 ♂; East Cape Province , Katberg ; alt. 4000 ft; Dec. 1932; R.E. Turner leg.; NHMUK 013379414 [24 other syntype ♂♂ with the same collection data (collected Dec. 1932 – Feb. 1933) not examined] .

Other material (not examined)

SOUTH AFRICA • 1 ♂; Transkei (Umtata); Feb.–Mar. 1933 • 1 ♂; Cape Province, Queenstown ; alt. 3500 ft; Feb.–Mar. 1933 .

Redescription

Male

BODY LENGTH. 5.32 mm.

COLOUR ( Figs 15 , 16A–D ). Body predominantly black, tegula brown, interantennal process and legs brownish black; radicle brown, remaining antennomeres black.

HEAD ( Figs 15 , 16A, C, D ). Head 1.15 × as wide as high, 2.1× as high as long; IOS 0.65 × head width, 1.5× eye length; OOL>POL> LOL in ratio of 31.0: 16.8: 11.4; OOL 3.1× OD; eye (L: W = 57.2: 37.4) setose; upper frons areolate, remainder longitudinally carinate, space between carinae predominantly smooth with setigerous punctae; frons above interantennal process smooth; ocelli raised above surface of vertex; vertex and interocellar area with large areolae, setose; occiput carinate with setigerous foveae medially; occipital carina foveate; gena longitudinally carinate, interspersed with setigerous punctae; length and width of antennomeres A1–A 9 in ratio of 59.7: 13.4, 9.0: 9.7, 50.7: 16.4, 32.8: 14.9, 34.3: 16.4, 37.3: 16.4, 41.8:16.4, 44.8: 14.9, 44.8: 14.9, respectively.

MESOSOMA ( Figs 15A , 16A, C ). Cervical pronotal area transversely carinate; mesoscutum (L:W = 84.6: 98.4) anteriorly areolate, remainder longitudinally carinate, space between carinae unevenly smooth with setigerous punctae; pronotal shoulders without a wide lateral spine; lateral pronotal area dorsally areolate, posteriorly with sparse transverse carinae adjoined by a patch of intricate sculpture interspersed with short setae, remainder smooth, devoid of setae; pronotal cervical sulcus weakly foveate; netrion foveate; dorsal mesopleuron with a rectangular, transversely carinate patch beneath tegula; speculum transversely carinate; femoral depression with several transverse carinae posteroventrally; anterior episternum and ventral mesopleuron entirely with setigerous foveae; metapleuron densely setose; scutoscutellar sulcus foveate laterally; mesoscutellum (L:W = 46.1: 84.6) areolate, each areola with several setigerous punctae, median keel present posteriorly; metascutellum foveate, posteromedially with a triangular spine which is foveate basally, metanotal trough foveate; lateral propodeal area laterally densely setose, remainder foveate; lateral propodeal area anterolaterally with a short spine; posterolateral margin of lateral propodeal area extending posteriorly as a blunt spine. Fore wing (L:W = 345.7:121.4) and hind wing (L:W = 229.9: 61.6) weakly infuscate.

METASOMA ( Figs 15A , 16B ). L:W = 217.6: 128.3; T1 longitudinally costate, space between costae foveate; T2 with basal foveae, remainder longitudinally costate, space between costae smooth to weakly foveate; T3 medially smooth with sparse setigerous punctae, remainder longitudinally costate, space between costae foveate, with short setae; remaining tergites smooth with setigerous punctae; T1 and T2 laterally with setigerous punctae, T4–T6 laterally densely setose; length and width of tergites T1–T 7 in ratio of 43.3: 54.8, 55.7: 53.0, 70.7: 119.4, 29.2: 123.8, 14.8: 95.5, 5.3: 61.9, 5.3: 31.0, respectively.

Figures

Fig. 15. Odontoscelio pluto (Nixon, 1936). Syntype, ♂ (NHMUK 013379414). A. Habitus, dorsal view. B. Antennae. Photos: D.G. Notton©, NHMUK.

Fig. 16. Odontoscelio pluto (Nixon, 1936). Syntype, ♂ (NHMUK 013379414). A. Head and pleuron. B. Metasoma. C. Head and mesonotum. D. Frons. E. Type label. Photos: D.G. Notton©, NHMUK.