Pagarenes erythropus CAMERON, 1903

Riedel, Matthias, 2017, Contribution to the Ichneumoninae (Hymenoptera, Ichneumonidae) of Southeastern Asia: 4. Platylabini, Eurylabini, and Oedicephalini, Linzer biologische Beiträge 49 (2), pp. 1275-1307 : 1280-1283

Pagarenes erythropus CAMERON, 1903

M a t e r i a l: NE India, Arunachal province, Etalin vieinity, 700 m, N 2836´E 95 53´, 13 15- 25.V.2012. leg. O. Sausa (Linz); L a o s, Hua Phan Prov., Ban Saleui, Phon-Pan-Mt. 2013´30´´N 10359´26´´E, 1350-1900 m, 13 8.VI.2013, leg. C. Holzschuh & natives (Linz).

D i s t r i b u t i o n: Widespread in Southeastern and Southern Asia.

Pagarenes rufocoxalis nov.sp. ( fig.8 , 28 ) H o l o t y p u s: (♀) Laos, Hua Phan Prov., Phon-Pan (Mt.), Ban Saleui (village), 2013´30´´N

10359´26´´E, 1350-1900 m MSL, 08.06.2009, leg. C. Holzschuh and many locals (Linz).

D e s c r i p t i on:

Body length 9 mm. Flagella slender, bristle-shaped, with 34 segments; 1 st flagellomeres length 5.6x width, all flagellomeres longer than wide. Temples strongly and roundly narrowed behind eyes, length 0.55x eye width. Distances of lateral ocelli to eyes c.1.0x their diameter. Frons above antennae smooth. Face and clypeus punctate. Clypeus moderately convex, with rounded apical margin. Malar spaces short, length c.0.4x width of mandibular bases. Genal carinae joining hypostomal ones far from mandibular bases; hypostomal carinae slightly elevated.

Mesosoma with whitish hairs. Notauli not distinctly impressed; mesoscutum and metapleura punctate; mesopleura with dense and somewhat rugose punctation. Coxal carinae present. Scutellum moderately elevated, punctate, about as long as wide and with complete lateral carinae. Propodeum with short-oval spiracles (length 2x width). Area superomedia as long as wide, dome-shaped, with rounded frontal carina; costulae absent. Area petiolaris with lateral carinae, punctate. Apophyses distinct, about as long as wide. Hind coxae densely rugose-punctate, without scopa. Hind femora densely punctate, length 4.3x height. Areolets quadrangular, nervuli interstitial.

Metasoma amblypygous, egg-shaped, with blunt apex. Petiolus wider than high. Postpetiolus moderately widened, width c.0.7x distance of apophyses, without dorsal carinae; median field slightly elevated, coarsely rugose-punctate. 2 nd tergite length 0.8x width; 3 rd tergite length 0.5x width. Gastrocoeli impressed, with rugae. Thyridiae oblique, narrow, width 0.7x their interval. 2 nd tergite with very coarse, dense punctures; 3 rd tergite densely punctate; 4 th tergite with fine granulation, shining. Ovipositor sheaths slightly surpassing metasomal apex.

Colour: Black. 1 st and 2 nd flagellomeres reddish ventrally. Ivory are stripes on flagellomeres 8-13, palps, mandibular bases, clypeus except apico-medial black spot, wide triangular facial orbits, frontal orbits up to lateral ocelli, narrow stripes on genae and outer orbits, scapes and pedicels ventrally, propleura ventrally, frontal and upper margins of pronotum, spots on tegulae and on subtegular ridges, scutellum and postscutellum, large caudal spots and upper hind edges of mesopleura; apical half of metapleura, apical half of propodeum (except area petiolaris), wide apical bands on postpetiolus (with reddish suffusion) and 2 nd tergite, very narrow apical margins of 3 rd and 4 th tergites, and wide apical bands on following tergites, apical bands of 1 st and 2 nd sternites and hypopygium completely. Fore and middle coxae and trochanters ivory; hind coxae red, with small dorsal ivory spot; legs otherwise reddish; hind femora in apical 0.15; hind tibiae basally and in apical 0.2 and all apical tarsomeres blackish; hind tarsi except apical segments cream-yellow. Wings hyaline, pterostigmas dark brownish.

3 and hosts unknown.

D i s t r i b u t i o n: Laos.

Poecilostictus decoratus ssp. laoticus nov.ssp. ( fig. 31 ) H o l o t y p u s (♀) Laos, Hua Phan Prov., Ban Saleui, Phon-Pan-Mt., 2013´30´´N

10359´26´´E, 1350-1900 m, 21.4.2010, leg. C. Holzschuh & natives (Linz).

D e s c r i p t i o n: Body length 12 mm. Flagellum with 42 segments, slightly lanceolate. 1 st flagellomeres length 4.1x width, widest flagellomeres c.1.2x wider than long. Flagellomeres 8-12 with yellow stripes.

The available ♀ is closely related to P. decoratus HEINRICH and probably represents a subspecies only. It differs from the original description of P. decoratus ( HEINRICH 1974b: 189-190) by the presence of two short yellow stripes on lateral margins of mesoscutum beneath tegulae. The postpetiolus has a large central yellow spot on apex; 2 nd to 4 th tergites are black, without yellow markings; 5 th and 6 th tergites have narrow yellow membranous apical margins. Otherwise as described for C. decoratus HEINRICH. The 3 which Heinrich mentioned in his description probably belongs to this new subspecies.

Platylabus flavomaculatus nov.sp. ( fig. 9 , 29 , 33 ) H o l o t y p u s:(♀) N Vietnam, Tam-Dao NP, Tam-Dao, 900-1200 m, N 2127´E 10538´, E.

Jendek, 06.2011 (Linz).

P a r a t y p u s:(3) N Vietnam, Tam-Dao NP, Tam-Dao, 900-1200 m, N 2127´E 10538´, E. Jendek, 06.2011 (Linz).

R e m a r k: In the key of HEINRICH (1974b: 109-112), this new species runs to couplet 14, but differs from the other known Oriental Platylabus species by the colour pattern of the metasoma.

D e s c r i pt i on:

♀

: Body length 9.5 mm. Flagella slender, bristle-shaped, with 34 segments; 1 st flagellomeres length 5.0x width, all flagellomeres longer than wide. Temples strongly and roundly narrowed behind eyes, length 0.35x eyes width. Ocelli large, distance of lateral ocelli to eyes c.0.75x their diameter. Frons ventrally smooth, dorsally finely granulate and punctate. Face and clypeus punctate. Clypeus moderately convex, with straight apical margin. Malar spaces length 0.4x width of mandibular bases. Genal carinae joining hypostomal ones far from mandibular bases; hypostomal carinae narrow.

Mesosoma with whitish hairs. Notauli not impressed; mesoscutum densely punctate; mesopleura and metapleura finely punctate, mesopleura rugose-punctate centrally, specula shining and with scattered puncture. Coxal carinae absent. Scutellum strongly elevated, almost pyramidal, with lateral carinae in its basal 0.7. Propodeum with long-oval spiracles (length 3x width). Area superomedia halfmoon-shaped, c.2x wider than long; costulae absent. Area petiolaris with lateral carinae and irregular coarse rugae. Outer dentiparal edges without apophyses. Hind coxae punctate, without scopa; hind femora densely punctate, length 3.9x height. Areolets almost quadrangular, nervuli interstitial.

Metasoma amblypygous. Petiolus wider than high. Postpetiolus moderately widened, width c.0.7x distance of dentiparal edges, without dorsal carinae; median field slightly elevated, with some rugae and punctures, shining. 2 nd tergite length 1.0x width. Gastrocoeli impressed, rugose; thyridia large, slightly oblique, width 1.7x their interval. 2 nd to 4 th tergites very densely punctate and granulate, matte, 5 th to 7 th tergites finely granulate and shining.

Colour: Black. Ivory are stripes on flagellomeres 5-12. Yellowish are palps, mandibular bases, clypeus, malar spaces, facial and frontal orbits up to lateral ocelli, narrow stripes on outer orbits, scapes ventrally, ventral apices of propleura, frontal and upper margins of pronotum, two short longitudinal paramedian stripes on mesoscutum, spots on tegulae and on subtegular ridges, scutellum and postscutellum, mesopleura along epicnemial carinae, large caudal spots on mesopleura, apical half of metapleura and propodeum (except black area petiolaris), base of 1 st tergite, hind margin of postpetiolus, fore and middle coxae and trochanters. 2 nd and 3 rd tergites reddish (3 rd tergite diffusely darkened centrally), 4 th and 5 th tergites with reddish apical bands. Hind coxae reddish-brown, with ivory spots apically and dorsally; legs otherwise reddish; hind femora reddish-brown; hind tibiae infuscate in apical 0.4. Wings hyaline, pterostigmas brownish.

3: Body length 9.5 mm. Flagella with 35 segments, slender, without tyloids; 1 st flagellomeres length 3.3x width. Hind femora length 3.7x height; 2 nd tergite length 1.05x width. Structure otherwise as described for the ♀. Flagella completely black. Face yellow; hind coxae blackish with apical and dorsal yellow spots; hind femora blackish, narrowly yellowish at base; hind tarsi completely black. Colour otherwise as described for the ♀.

D i s t r i b u t i o n: Vietnam.

Figures

Fig. 6-11: Heads from dorsal of (6) Apaelecticus rufopetiolaris nov.sp. HT; (7) Ectopoides flavoverticalis nov.sp. HT; (8) Paragenes rufocoxalis nov.sp. HT; (9) Platylabus flavomaculatus nov.sp. HT; (10) Platylabus laoticus nov.sp. HT; (11) Pristicerops magnus nov.sp. HT.

Fig. 26-31: Metasoma of (26) Apaeleticus rufopetiolaris nov.sp. HT; (27) Granulolabus maculatus nov.sp. HT; (28) Pagarenes rufocoxalis nov.sp. HT; (29) Platylabus flavomaculatus nov.sp. HT; (30) Platylabus laoticus nov.sp. HT; (31) Poecilostictus decoratus ssp. laoticus nov.ssp. HT.

Fig. 32-35: Propodeum of (32) Granulolabus maculatus nov.sp. HT; (33) Platylabus flavomaculatus nov.sp. HT; (34) Platylabus laoticus nov.sp. HT; (35) Pristicerops magnus nov.sp. HT.