Synosis gauldi, Alvarado & Rodriguez-Berrio, 2013

Alvarado, M. & Rodriguez-Berrio, A., 2013, Four new species of the genus Synosis Townes (Hymenoptera: Ichneumonidae) from the eastern Andes of Peru and key for the New World species, Journal of Natural History (J. Nat. Hist.) 47 (37 - 38), pp. 2479-2492 : 2486-2488

Synosis gauldi sp. nov.

( Figures 4 , 6B , 7C )

Holotype. ♀, PERU: CU, Valle del Qosñipata , Rocotal, 13 ◦ 06 ′ 48 ′′ S, 71 ◦ 34 ′ 13 ′′ W, 2052 m. 07 January 2008. Malaise trap 10. C. Castillo ( MUSM).

Diagnosis

Synosis gauldi closely resembles S. townesi , but differs in submetapleural carina anteriorly expanded as a thin rectangle and laterotergites I and II vestigial.

Description

Female. Total length 5.1 mm; fore wing length 4 mm. Head punctate; antenna with 29 flagellomeres, first flagellomere c.2.2× as long as centrally broad, and subapical ones elongate c.1.2× as long as centrally broad; lateral ocellus separated from compound eye by c.1.0× ocellar diameter; face c.0.83× as wide as long, coarsely punctate; mandibles not twisted, slightly tapered, with upper tooth very slightly broader and longer than lower tooth; malar space c.1.6× as long as basal mandibular width; gena, in lateral view, c.0.75× as long as compound eyes. Mesosoma generally with coarse punctures, except for pronotum polished, with a band of setae along the upper and posterior margin, elsewhere bare; notauli extending to centre; epomia strong, almost reaching upper margin of pronotum; mesoscuto-mesoscutellar groove deep, wide and scrobiculate; scutellum with longitudinal lateral carinae reaching to posterior end; metapleuron polished, with a band of hairs along its upper margin, elsewhere bare; submetapleural carina slightly expanded as a thin rectangle. Propodeum with lateromedian longitudinal carinae anteriorly converging but never in contact, with a space between; anterior transverse cariane present between lateromedian longitudinal carinae, area basalis and superomedia smooth. Fore wing with abscissa of Cul between 1m-cu and Cu1a c.1.4× as long as Culb; cu-a postfurcal. Metasoma with tergite I moderately slender, c.1.4× as long as posteriorly broad, lateromedian carinae c.0.3× length of tergite, in dorsal view coarsely punctate, except for glabrous central area; tergite II c.0.8× as long as posteriorly broad, coarsely punctate, except for glabrous central area; tergite III–VI similarly sculptured. Laterotergites I and II vestigial.

Head face, frons on the inner orbit, palpi, mandibles and malar space yellow; ventral part of scape brownish and the rest black. Mesosoma predominantly black, except for tegula, upper part of the subalar prominence and apical part of prosternum yellowish. Metasoma black. Legs yellowish, except for hind leg with coxa, apical and basal part of tibia and tarsomeres black. Wings hyaline; pterostigma brown.

Male. Unknown.

Etymology

Named in honour of, Dr Ian Gauld.

Figures

Figure 4. Lateral habitus of S. gauldi sp. n., holotype female.

Figure 6. Details of Synosis species, (A) dorsal view of propodeum and tergite I of Synosis rubinus sp. n.; (B) dorsal view of propodeum and tergite I of S. gauldi sp. n., holotype female; (C) dorsal view of propodeum and tergite I of S. clepsydra paratype female; (D) dorsal view of propodeum of S. clepsydra holotype female; (E) dorsal view of propodeum of S. ugaldei, modified of Gauld & Sithole (2002); (F) dorsal view of propodeum S. cosnipatensis sp. n., holotype female; (G) dorsal view of propodeum S. townesi sp. n., holotype female.

Figure 7. Details of Peruvian Synosis species, (A) metapleura and lateral view of metasoma of S. cosnipatensis sp. nov., holotype female; (B) metapleura and lateral view of metasoma of S. townesi sp. nov., holotype female; (C) metapleura and lateral view of metasoma of S. gauldi sp. nov., holotype female.