Pristomerus yago, Rousse & Villemant & Seyrig, 2013

Rousse, Pascal, Villemant, Claire & Seyrig, André, 2013, Ichneumonid wasps from Madagascar. VI. The genus Pristomerus (Hymenoptera: Ichneumonidae: Cremastinae), European Journal of Taxonomy 49, pp. 1-38 : 34-36

Pristomerus yago sp. nov.

urn:lsid:zoobank.org:act:246E143E-A6B2-46ED-9CBD-9BA6AE654D84

Fig. 17

Diagnosis

Moderately large species; face rufo-testaceous; general coloration rufo-testaceous, tergites 1–2 dark brown; head strongly constricted behind eyes; face transverse and moderately punctate, clypeus slightly transverse and sparsely punctate; mesoscutum alutaceous with sparse punctures, scutellum smooth; area superomedia about 2 x longer than wide, smooth; female femoral tooth strong; ovipositor moderately long, apically sinuate; POL 0.8; OOL 1.0; CT 1.6; ML 0.5; OT 1.5–1.7; FFT 2.

Differential diagnosis

Species characterized by the weakly sculptured mesosoma with smooth area superomedia and the strong femoral tooth of female. The male coloration is similar to that of P. veloma which is bigger and has a punctate-granulate mesosoma.

Etymology

Euphonic arrangement of letters.

Type material

Holotype

MADAGASCAR: ♀ ( MNHN EY3753 ), Rogez, 48°18’ S, 48°32’ E, verbatim label data: “Madagascar, Rogez, forêt côte est, II.31 ”, complete.

Paratypes

MADAGASCAR: 39 ♀♀, 10 ♂♂ ( MNHN EY3754–3816), same locality, Sep. and Dec. 1930, Jan., Feb. and Apr. 1931; 1 ♀ ( MNHN EY3817), Andreba, Nov. 1933; 1 ♀ ( MNHN EY3818), Ranomafana, Oct. 1938; 1 ♀ ( MNHN EY3819), Perinet, Feb. 1939; 7 ♂♂ ( MNHN EY3820–3826), Ivondro, Dec. 1938, Jan. 1939 and May 1940; 8 ♀♀, 8 ♂♂, Rogez, Dec. 1930, Jan. and Feb. 1931, May 1932, 1933 and 1936 (one couple to each of the above mentioned institutions).

Other material examined

MADAGASCAR: 2 ♂♂ ( MNHN), Bekily, Feb. 1931 and Feb. 1937; 1 ♂ ( MNHN), La Mandraka, Feb. 1936; 3 ♂♂ ( MNHN), Ivondro, Dec. 1938 and Jan. 1939.

Description

Female

LENGTH. 4.8, 4.3 (4.0–4.8) (10 specimens).

HEAD. Temple very short, head strongly constricted behind eyes. Vertex granulate. Ocellar triangle equilateral. Face transverse, 1.5 x wider than high and slightly widened ventrally, shining and moderately punctate. Clypeus moderately transverse, weakly convex, shining with sparse puncture. Mandible stout. Malar line short. Antenna with 32–34 flagellomeres.

MESOSOMA. Slightly elongate, about 1.7 x longer than high. Mesoscutum finely granulate with sparse punctures, posteriorly smoother. Scuto-scutellar groove striate, scutellum smooth. Mesopleuron shining and sparsely punctate, metapleuron moderately punctate-granulate. Propodeum with strong carination, area basalis opposite or slightly petiolate, area superomedia almost smooth, 2 x as long as wide, area petiolaris with transverse wrinkles. Hind femur slightly swollen, with an acute tooth followed by a series of very small denticles.

METASOMA. Post-petiole, tergite 2 and base of tergite 3 finely aciculate, the following tergites alutaceous. Tergite 2 about 2 x longer than wide. Thyridia shortly oval. Ovipositor moderately long, its apical 1/3 sinuate.

COLOR. Rufo-testaceous. Flagellum, ovipositor sheath and tergites 1–2 dark brown (except the apical margin of tergite 2). Wings hyaline, pterostigma large, dark brown.

Male

Length: 5.1 (4.8–5.5) (10 specimens). Eyes strongly convergent dorsally. Posterior ocelli widely separated (POL = 1) and very close to eyes (OOL = 0.2). Hind femur strongly swollen with a sharp tooth followed by a dense row of more or less merging fine denticles. Thyridia slightly elongate, oval. Metasoma entirely dark brown. Base of hind tibia darker. Otherwise similar to female.

Distribution

Madagascar (Toamasina province).

Figures

Fig. 17. Pristomerus yago sp. nov. A. ♀, habitus, profile. B. ♀, head, facial. C. ♀, hind femur, profile. D. ♂, hind femur, profile.