Triclistus yungas, Alvarado, Mabel & Rodriguez-Berrio, Alexander, 2013

Alvarado, Mabel & Rodriguez-Berrio, Alexander, 2013, Ten new species of Triclistus Förster, 1869 (Hymenoptera, Ichneumonidae) from Peru, with a key to Neotropical species, Zootaxa 3702 (5), pp. 401-423 : 419-420

Triclistus yungas sp. n.

Fig 10

Holotype. F, PERU: CU, Qosňipata [valley], Rocotal, 13o6’48”S / 71o34’13”W, 2052 m, 19.ix.2007, colecta manual, C. Castillo Leg ( MUSM).

Diagnosis. Triclistus yungas is structurally very close to T. warmi sp. nov., differing in the shorter malar space (0.6x as long as basal mandibular width), petiole as long as wide and hind femur yellowish.

Description. F: Fore wing length 3.8 mm. Antenna with 21 flagellomeres, second flagellomere ca. 1.6x as long as centrally broad, subapical flagellomeres elongate, ca. 1.1x as long as centrally broad, clearly longer than broad; face ca. 1.2x as long as wide, granulose with sparse punctures; mandibles not twisted, tapered, with upper tooth broader and longer than lower tooth; labrum not exposed when mandibles closed; clypeal margin straight; malar space ca. 0.6x as long as basal mandibular width; lateral ocellus separated from eye by ca. 1.3x ocellar diameter; head in dorsal view with genae slightly declivous, contiguously to the occiput carina; gena on lateral view ca. 1.1x as long as eye; frons smooth, punctate; crest between antennal sockets sharp; gena predominately punctate except for mid-posterior area glabrous; vertex punctate except for glabrous triangular area around occipital carina. Mesosoma generally smooth, polished and finally punctate; mesoscutum slightly convex; notauli extending to center, weak; pronotum polished, with band of hairs along upper and posterior margins; mesopleurum punctate on upper, anterior and lower margins; scuto-scutellar groove deep and smooth; scutellum almost flat, with longitudinal lateral carinae complete; metapleuron polished, submetapleural carina scrobiculate, anteriorly expanded into a conspicuous triangular lobe; pleural carina slightly declivous in anterior half then curved. Propodeum quite long, anteriorly weakly declivous, posteriorly curved, with lateromedian and lateral longitudinal carinae complete, confluent area externa and dentipara smooth and punctate; area spiracularis + area lateralis confluent, coarsely punctate; spiracle round.

Fore wing with 3rs-m present, abscissa of 2rs-m between Rs+2r and 3rs-m 0.2x abscissa of 2rs-m between 3rsm and 1m-cu, petiole with vein wider than high. Metasoma with tergite I ca. 1.4x as long as posteriorly broad, lateral longitudinal carinae more or less complete, with lateromedian carinae weak, extending ca. 0.5x of length of tergite, sparsely punctate basally and on apical lateral margins; tergite II with isolated punctures on lateral margins, ca. 0.9x as long as posteriorly broad; tergites III–VI with isolated punctures on lateral margins, tergites VI–VII with rows of strong setae on posterior margins.

Head extensively black except mouth parts reddish brown, antennae blackish brown with basal antennomeres ventrally paler. Mesosoma black, tegula reddish brown; legs reddish brown. Metasoma black.

Male. Unknown

Etymology. The specific epithet yungas is in honor of the Yungas stretch of forest along the eastern slope of the Andes Montains.

Figures

FIGURE 10 Lateral habitus of Triclistus yungas sp. n., holotype female.