Pristomerus mbama, Rousse & Noort, 2015

Rousse, Pascal & Noort, Simon van, 2015, Revision of the Afrotropical species of Pristomerus (Ichneumonidae: Cremastinae), with descriptions of 31 new species, European Journal of Taxonomy 124, pp. 1-129 : 67-69

Pristomerus mbama sp. nov.

urn:lsid:zoobank.org:act:5584F15B-A339-44E9-827F-5ECF671EBD94

Fig. 20

Diagnosis

Moderately small; mostly black with metasoma mostly yellowish-orange from tergite 3; apex of femora pale dotted; face densely punctate, sculpture smoother on remainder of head; inner margins of eyes subparallel; clypeus transverse; malar line very short; antenna with 30 flagellomeres; mesosoma mostly coarsely punctate, including scutellum and entire speculum, pronotum hardly smoother postero-dorsally; propodeum with carination thick, area basalis petiolate; ovipositor moderately long, apically strongly sinuous. Male unknown.

Differential diagnosis

Moderately small and mostly black; differentiated from all other Pristomerus species by the combination of the very short malar line, the entirely punctate speculum and almost entirely sculptured pronotum, and the very weak female femoral tooth. It appears closely related to P. mbaka sp. nov. in which the scutellum is impunctate and the ovipositor is significantly shorter, apically straight.

Type material

Holotype

GABON: ♀, “ GABON, Prov. Ogooué–Maritime, Réserve de la Moukalaba–Dougoua , 12.2km 305°NW Doussala, 2°17.00’S 10°29.83’E, 110m, 28.ii.2000, S. van Noort, Sweep, GA00–S18, Lowland Rainforest, forest margin along road, SAM–HYM–P041662” ( SAMC).

Description

Female (holotype) B 6.0; A 3.6; F: 4.1; CT 1.8; ML 0.3; POL 0.5; OOL 0.8; Fl n-1 1.1; ASM 2.1; OT 1.6; FFT 1.

COLOUR. Head black with mandible, palpi, clypeus, malar space and frontal orbits yellow to yellowishorange; mesosoma black; tergites 1–2 black, following tergites mostly yellowish-orange and centrally blackened; legs yellowish-orange with hind coxa black and hind femur testaceous-brown; all femora apically white dotted; wings hyaline, slightly infuscate apically, venation brown with pterostigma somewhat paler anteriorly.

HEAD. Face densely and deeply punctate, medially bulging; inner margins of eyes subparallel; clypeus transverse, mostly smooth but dorsal margin punctate, convex in profile view; malar line very short; frons and vertex finely and closely punctate-granulate; temple and occiput coriaceous; frons midlongitudinally weakly bulging; occipital carina joining hypostomal carina above mandible base; antenna with 30 flagellomeres, penultimate flagellomere barely elongate.

MESOSOMA. Elongate; pronotum entirely sculptured, moderately punctate, anteriorly crenulate and posteriorly coriaceous; mesopleuron and metapleuron evenly, densely and deeply punctate with an oblique striate groove below speculum, speculum entirely punctate; mesoscutum densely and finely punctategranulate, punctures confluent into oblique rugosities along notaulus; notaulus moderate; scutellum densely punctate; propodeum densely punctate-granulate with area superomedia centrally smoother and area petiolaris transversely strigose; carination thick, area basalis petiolate, area superomedia elongate. Legs. Femoral tooth very weak though distinct.

METASOMA. Tergite 2 and apical half of tergite 1 longitudinally aciculate, following tergites coriaceous; thyridium subelliptic, its main axis longitudinal; ovipositor moderately long, strongly sinuous apically.

Male

Unknown.

Distribution

Gabon.

Figures

Fig. 20. Pristomerus mbama sp. nov. Holotype, ♀. A. Habitus, lateral view. B. Head, mesosoma, dorsal view. C. Head, anterior view. D. Propodeum, dorsal view. E. Mesosoma, lateral view. F. Hind tibia, lateral view (inset: data labels).