Odontoscelio caelebs ( 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 : 65-67

Odontoscelio caelebs ( Nixon, 1936)

Figs 9–10

Macrogryon caelebs Nixon, 1936: 189 , fig. 18 (holotype, ♀, NHMUK).

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

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

Material examined

Holotype (images only) MALAWI • ♀; Mangochi [labelled: Fort Johnston, Nyasaland]; Feb. 1922; Dr W.A. Lamborn leg.; taken crawling on sand; NHMUK 013379412 .

Redescription

Female

BODY LENGTH. 7.0 mm.

COLOUR ( Figs 9 , 10A–E ). Body black, tegula, interantennal process, mandibles and legs brownish black; radicle brown, A1 black, A2–A4 brownish black.

HEAD ( Figs 9 , 10A, D–E ). Head 1.32 × as wide as high, 1.45 × as high as long; IOS 0.60 × head width, 1.3× eye length; OOL>POL>LOL in ratio of 35.4:18.9: 10.4; OOL 3.9× OD; eye (L: W = 75.9:48.0) setose; dorsal frons areolate with setigerous punctae, with semicircular carinae above interantennal process, smooth medially, remainder with oblique carinae radiating towards centre interspersed with setigerous punctae; interantennal process foveate, setose; vertex areolate with setigerous punctae, interocellar area predominantly smooth; ocelli not raised above surface of vertex; occiput carinate; occipital carina foveate; gena longitudinally carinate, interspersed with setigerous punctae; length and width of antennomeres A1–A 4 in ratio of 98.0: 14.7, 14.7: 9.8, 46.1: 14.7, 16.7: 14.7, respectively.

MESOSOMA ( Figs 9 , 10A, C ). Cervical pronotal area transversely carinate; mesoscutum (L:W = 114.0:132.8) anteriorly areolate interspersed with setigerous punctae, remainder with longitudinal carinae, space between carinae with setigerous foveae; pronotal shoulders with a wide spine, visible when viewed dorsally; lateral pronotal area dorsally areolate, setose, posteroventrally weakly transversely striate, remainder smooth; pronotal cervical sulcus foveate; netrion foveate; dorsal mesopleuron without a rectangular, transversely carinate patch beneath tegula; mesopleural pit distinct; speculum transversely carinate; mesepimeral sulcus not foveate; femoral depression transversely carinate; anterior episternum foveate, setose; postacetabular sulcus transversely carinate; ventral mesopleuron foveate, densely setose; metapleuron anteriorly densely setose, posteriorly with large depressions; scutoscutellar sulcus foveate laterally; mesoscutellum (L: W = 51.5: 117.1) areolate, median keel present; metascutellum foveate, posteromedially with a triangular spine, metanotal trough foveate; lateral propodeal area laterally densely setose, remainder longitudinally carinate, space between carinae smooth; posterolateral margin of lateral propodeal area extending posteriorly as a blunt, in-curved spine. Fore wing (L:W = 304.3: 102.1) and hind wing (L:W = 271.7: 71.7) weakly infuscate.

METASOMA ( Figs 9 , 10B ). (L: W = 356.7: 188.7); T1 predominantly longitudinally costate, space between costae smooth; T2 with basal foveae, remainder longitudinally costate, space between costae with carinae posteriorly; T3 longitudinally costate, space between costae foveate, with short setae; T3 with a row of setigerous punctae on posterior margin, followed by a smooth patch; T4 medially smooth with sparse setigerous punctae, remainder with large depressions with setae; T5 setigerous punctate; T6 with two large teeth laterally and a median lobe, both densely setose; T1 and T2 sparsely setose laterally, T3 laterally punctate with a mix of dense short and long setae, T4 with dense setae laterally; length and width of tergites T1–T 6 in ratio of 54.2: 52.3, 81.3:63.6, 112.1: 168.2, 57.9: 172.0, 20.6: 112.1, 20.6: 56.1, respectively.

Figures

Fig. 9. Odontoscelio caelebs (Nixon, 1936). Holotype, ♀ (NHMUK 013379412). A. Habitus (dorsal view). B. Habitus (lateral view). Photos: D.G. Notton©, NHMUK.

Fig. 10.Odontoscelio caelebs (Nixon, 1936). Holotype, ♀ (NHMUK 013379412). A. Head and pleuron. B. Metasoma. C. Mesonotum. D. Frons. E. Head. F. Type label. Photos: D.G. Notton©, NHMUK.